update logger README to include detailed usage instructions and examples

Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>

.clang-format

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.gitignore

@@ -1,3 +1,5 @@
 /.idea
 sdkconfig.old
-/managed_components
+/managed_components
+sdkconfig
+dependencies.lock

CMakeLists.txt

@@ -3,4 +3,4 @@
 cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(odroid-remote-http)
+project(odroid-power-mate)

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
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+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

LICENSE.md

@@ -0,0 +1,675 @@
+# GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+## Preamble
+
+The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom
+to share and change all versions of a program--to make sure it remains
+free software for all its users. We, the Free Software Foundation, use
+the GNU General Public License for most of our software; it applies
+also to any other work released this way by its authors. You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you
+have certain responsibilities if you distribute copies of the
+software, or if you modify it: responsibilities to respect the freedom
+of others.
+
+For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the
+manufacturer can do so. This is fundamentally incompatible with the
+aim of protecting users' freedom to change the software. The
+systematic pattern of such abuse occurs in the area of products for
+individuals to use, which is precisely where it is most unacceptable.
+Therefore, we have designed this version of the GPL to prohibit the
+practice for those products. If such problems arise substantially in
+other domains, we stand ready to extend this provision to those
+domains in future versions of the GPL, as needed to protect the
+freedom of users.
+
+Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish
+to avoid the special danger that patents applied to a free program
+could make it effectively proprietary. To prevent this, the GPL
+assures that patents cannot be used to render the program non-free.
+
+The precise terms and conditions for copying, distribution and
+modification follow.
+
+## TERMS AND CONDITIONS
+
+### 0. Definitions.
+
+"This License" refers to version 3 of the GNU General Public License.
+
+"Copyright" also means copyright-like laws that apply to other kinds
+of works, such as semiconductor masks.
+
+"The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of
+an exact copy. The resulting work is called a "modified version" of
+the earlier work or a work "based on" the earlier work.
+
+A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user
+through a computer network, with no transfer of a copy, is not
+conveying.
+
+An interactive user interface displays "Appropriate Legal Notices" to
+the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+### 1. Source Code.
+
+The "source code" for a work means the preferred form of the work for
+making modifications to it. "Object code" means any non-source form of
+a work.
+
+A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+The Corresponding Source need not include anything that users can
+regenerate automatically from other parts of the Corresponding Source.
+
+The Corresponding Source for a work in source code form is that same
+work.
+
+### 2. Basic Permissions.
+
+All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+You may make, run and propagate covered works that you do not convey,
+without conditions so long as your license otherwise remains in force.
+You may convey covered works to others for the sole purpose of having
+them make modifications exclusively for you, or provide you with
+facilities for running those works, provided that you comply with the
+terms of this License in conveying all material for which you do not
+control copyright. Those thus making or running the covered works for
+you must do so exclusively on your behalf, under your direction and
+control, on terms that prohibit them from making any copies of your
+copyrighted material outside their relationship with you.
+
+Conveying under any other circumstances is permitted solely under the
+conditions stated below. Sublicensing is not allowed; section 10 makes
+it unnecessary.
+
+### 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such
+circumvention is effected by exercising rights under this License with
+respect to the covered work, and you disclaim any intention to limit
+operation or modification of the work as a means of enforcing, against
+the work's users, your or third parties' legal rights to forbid
+circumvention of technological measures.
+
+### 4. Conveying Verbatim Copies.
+
+You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+### 5. Conveying Modified Source Versions.
+
+You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these
+conditions:
+
+- a) The work must carry prominent notices stating that you modified
+  it, and giving a relevant date.
+- b) The work must carry prominent notices stating that it is
+  released under this License and any conditions added under
+  section 7. This requirement modifies the requirement in section 4
+  to "keep intact all notices".
+- c) You must license the entire work, as a whole, under this
+  License to anyone who comes into possession of a copy. This
+  License will therefore apply, along with any applicable section 7
+  additional terms, to the whole of the work, and all its parts,
+  regardless of how they are packaged. This License gives no
+  permission to license the work in any other way, but it does not
+  invalidate such permission if you have separately received it.
+- d) If the work has interactive user interfaces, each must display
+  Appropriate Legal Notices; however, if the Program has interactive
+  interfaces that do not display Appropriate Legal Notices, your
+  work need not make them do so.
+
+A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+### 6. Conveying Non-Source Forms.
+
+You may convey a covered work in object code form under the terms of
+sections 4 and 5, provided that you also convey the machine-readable
+Corresponding Source under the terms of this License, in one of these
+ways:
+
+- a) Convey the object code in, or embodied in, a physical product
+  (including a physical distribution medium), accompanied by the
+  Corresponding Source fixed on a durable physical medium
+  customarily used for software interchange.
+- b) Convey the object code in, or embodied in, a physical product
+  (including a physical distribution medium), accompanied by a
+  written offer, valid for at least three years and valid for as
+  long as you offer spare parts or customer support for that product
+  model, to give anyone who possesses the object code either (1) a
+  copy of the Corresponding Source for all the software in the
+  product that is covered by this License, on a durable physical
+  medium customarily used for software interchange, for a price no
+  more than your reasonable cost of physically performing this
+  conveying of source, or (2) access to copy the Corresponding
+  Source from a network server at no charge.
+- c) Convey individual copies of the object code with a copy of the
+  written offer to provide the Corresponding Source. This
+  alternative is allowed only occasionally and noncommercially, and
+  only if you received the object code with such an offer, in accord
+  with subsection 6b.
+- d) Convey the object code by offering access from a designated
+  place (gratis or for a charge), and offer equivalent access to the
+  Corresponding Source in the same way through the same place at no
+  further charge. You need not require recipients to copy the
+  Corresponding Source along with the object code. If the place to
+  copy the object code is a network server, the Corresponding Source
+  may be on a different server (operated by you or a third party)
+  that supports equivalent copying facilities, provided you maintain
+  clear directions next to the object code saying where to find the
+  Corresponding Source. Regardless of what server hosts the
+  Corresponding Source, you remain obligated to ensure that it is
+  available for as long as needed to satisfy these requirements.
+- e) Convey the object code using peer-to-peer transmission,
+  provided you inform other peers where the object code and
+  Corresponding Source of the work are being offered to the general
+  public at no charge under subsection 6d.
+
+A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal,
+family, or household purposes, or (2) anything designed or sold for
+incorporation into a dwelling. In determining whether a product is a
+consumer product, doubtful cases shall be resolved in favor of
+coverage. For a particular product received by a particular user,
+"normally used" refers to a typical or common use of that class of
+product, regardless of the status of the particular user or of the way
+in which the particular user actually uses, or expects or is expected
+to use, the product. A product is a consumer product regardless of
+whether the product has substantial commercial, industrial or
+non-consumer uses, unless such uses represent the only significant
+mode of use of the product.
+
+"Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to
+install and execute modified versions of a covered work in that User
+Product from a modified version of its Corresponding Source. The
+information must suffice to ensure that the continued functioning of
+the modified object code is in no case prevented or interfered with
+solely because modification has been made.
+
+If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or
+updates for a work that has been modified or installed by the
+recipient, or for the User Product in which it has been modified or
+installed. Access to a network may be denied when the modification
+itself materially and adversely affects the operation of the network
+or violates the rules and protocols for communication across the
+network.
+
+Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+### 7. Additional Terms.
+
+"Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders
+of that material) supplement the terms of this License with terms:
+
+- a) Disclaiming warranty or limiting liability differently from the
+  terms of sections 15 and 16 of this License; or
+- b) Requiring preservation of specified reasonable legal notices or
+  author attributions in that material or in the Appropriate Legal
+  Notices displayed by works containing it; or
+- c) Prohibiting misrepresentation of the origin of that material,
+  or requiring that modified versions of such material be marked in
+  reasonable ways as different from the original version; or
+- d) Limiting the use for publicity purposes of names of licensors
+  or authors of the material; or
+- e) Declining to grant rights under trademark law for use of some
+  trade names, trademarks, or service marks; or
+- f) Requiring indemnification of licensors and authors of that
+  material by anyone who conveys the material (or modified versions
+  of it) with contractual assumptions of liability to the recipient,
+  for any liability that these contractual assumptions directly
+  impose on those licensors and authors.
+
+All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions; the
+above requirements apply either way.
+
+### 8. Termination.
+
+You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+However, if you cease all violation of this License, then your license
+from a particular copyright holder is reinstated (a) provisionally,
+unless and until the copyright holder explicitly and finally
+terminates your license, and (b) permanently, if the copyright holder
+fails to notify you of the violation by some reasonable means prior to
+60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+### 9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run
+a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+### 10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+### 11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned
+or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+### 13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU General Public License from time to time. Such new versions
+will be similar in spirit to the present version, but may differ in
+detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU General Public
+License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that numbered version or
+of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of the GNU General Public
+License, you may choose any version ever published by the Free
+Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU General Public License can be used, that proxy's public
+statement of acceptance of a version permanently authorizes you to
+choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+## How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+        <program>  Copyright (C) <year>  <name of author>
+        This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+        This is free software, and you are welcome to redistribute it
+        under certain conditions; type `show c' for details.
+
+The hypothetical commands \`show w' and \`show c' should show the
+appropriate parts of the General Public License. Of course, your
+program's commands might be different; for a GUI interface, you would
+use an "about box".
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your
+program into proprietary programs. If your program is a subroutine
+library, you may consider it more useful to permit linking proprietary
+applications with the library. If this is what you want to do, use the
+GNU Lesser General Public License instead of this License. But first,
+please read <https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -20,8 +20,15 @@ This project provides a comprehensive web interface to control power, monitor re
 
 Before you begin, ensure you have the following installed and configured on your system:
 
-- **[ESP-IDF (Espressif IoT Development Framework)](https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/get-started/index.html)**: This project is developed and tested with ESP-IDF v5.x.
+- **[ESP-IDF (Espressif IoT Development Framework)](https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/get-started/index.html)**: This project is developed and tested with ESP-IDF v5.4 or later.
 - **[Node.js and npm](https://nodejs.org/)**: Required to build the web application. Node.js LTS version (e.g., 18.x or later) is recommended.
+- **[Nanopb](https://github.com/nanopb/nanopb)**: Required to build for protobuf.
+
+### Install dependencies (Ubuntu)
+
+```bash
+sudo apt install nodejs npm nanopb
+```
 
 ## How to Build and Flash
 
@@ -70,4 +77,13 @@ Before you begin, ensure you have the following installed and configured on your
 1.  After flashing, the ESP32 will either connect to the pre-configured Wi-Fi network or start an Access Point (APSTA).
 2.  Check the serial monitor logs to find the IP address assigned to the device in STA mode, or the default AP address (usually `192.168.4.1`).
 3.  Open a web browser and navigate to the device's IP address.
-4.  You should now see the ODROID Remote control panel.
+4.  You should now see the ODROID Remote control panel.
+
+## Docs
+
+- Hardkernel WiKi: [https://wiki.odroid.com/accessory/powermate](https://wiki.odroid.com/accessory/powermate)
+
+## Repo
+
+- Hardkernel Github: [https://github.com/hardkernel/odroid-powermate](https://github.com/hardkernel/odroid-powermate)
+- Original Repo: [https://github.com/shinys000114/odroid-powermate](https://github.com/shinys000114/odroid-powermate)

dependencies.lock

@@ -1,59 +0,0 @@
-dependencies:
-  espressif/cmake_utilities:
-    component_hash: 05165f30922b422b4b90c08845e6d449329b97370fbd06309803d8cb539d79e3
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.1'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.1.1
-  espressif/led_indicator:
-    component_hash: 5b2531835a989825c0dc94465e3481086473e086dca109b99bea5605d8e70396
-    dependencies:
-    - name: espressif/cmake_utilities
-      registry_url: https://components.espressif.com
-      require: private
-      version: '*'
-    - name: idf
-      require: private
-      version: '>=4.0'
-    - name: espressif/led_strip
-      registry_url: https://components.espressif.com
-      require: public
-      version: 2.5.5
-    source:
-      registry_url: https://components.espressif.com/
-      type: service
-    version: 1.1.1
-  espressif/led_strip:
-    component_hash: 28c6509a727ef74925b372ed404772aeedf11cce10b78c3f69b3c66799095e2d
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.4'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 2.5.5
-  idf:
-    source:
-      type: idf
-    version: 5.4.0
-  joltwallet/littlefs:
-    component_hash: 8e12955f47e27e6070b76715a96d6c75fc2b44f069e8c33679332d9bdd3120c4
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.0'
-    source:
-      registry_url: https://components.espressif.com/
-      type: service
-    version: 1.20.1
-direct_dependencies:
-- espressif/led_indicator
-- joltwallet/littlefs
-manifest_hash: 445ef18c991ae952f2f16ffe06a905b6d1414a42286212d7b2459fa32945a09c
-target: esp32c3
-version: 2.0.0

docs/API.md

@@ -1,270 +0,0 @@
-# ODROID Remote API Documentation
-
-This document outlines the HTTP REST and WebSocket APIs for communication between the web interface and the ESP32 device.
-
----
-
-## WebSocket API
-
-The WebSocket API provides a full-duplex communication channel for real-time data, such as sensor metrics and the interactive serial console.
-
-**Endpoint**: `/ws`
-
-> **Note**: The server only accepts one WebSocket client at a time. Subsequent connection attempts will be rejected with a `403 Forbidden` error until the active client disconnects.
-
-### Server-to-Client Messages
-
-The server pushes messages to the client, which can be either JSON objects or raw binary data. JSON messages always contain a `type` field to identify the payload.
-
-#### JSON Messages
-
-| Type          | Description                                                                     | Payload Example                                                                                                      |
-|---------------|---------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------|
-| `sensor_data` | Pushed periodically (e.g., every second) with the latest power metrics.         | `{"type":"sensor_data", "voltage":12.01, "current":1.52, "power":18.25, "uptime_sec":3600, "timestamp": 1672531200}` |
-| `wifi_status` | Pushed periodically or on change to update the current Wi-Fi connection status. | `{"type":"wifi_status", "connected":true, "ssid":"MyHome_WiFi", "rssi":-65}`                                         |
-
-**Field Descriptions:**
-- `sensor_data`:
-  - `voltage` (float): The measured voltage in Volts (V).
-  - `current` (float): The measured current in Amperes (A).
-  - `power` (float): The calculated power in Watts (W).
-  - `uptime_sec` (integer): The system uptime in seconds.
-  - `timestamp` (integer): A Unix timestamp (seconds) of when the measurement was taken.
-- `wifi_status`:
-  - `connected` (boolean): `true` if connected to a Wi-Fi network, `false` otherwise.
-  - `ssid` (string): The SSID of the connected network. Null if not connected.
-  - `rssi` (integer): The Received Signal Strength Indicator in dBm. Null if not connected.
-
-#### Raw Binary Data
-
-- **Description**: Raw binary data from the ODROID's serial (UART) port is forwarded directly to the client. This is used to display the terminal output.
-- **Payload**: `(binary data)`
-
-### Client-to-Server Messages
-
-The client primarily sends raw binary data, which is interpreted as terminal input.
-
-- **Description**: Raw binary data representing user input from the web terminal. This data is forwarded directly to the ODROID's serial (UART) port.
-- **Payload**: `(binary data)`
-
----
-
-## HTTP REST API
-
-The REST API is used for configuration and to trigger specific actions. All request and response bodies are in `application/json` format.
-
-### Endpoint: `/api/control`
-
-Manages power relays and system actions.
-
-#### `GET /api/control`
-
-Retrieves the current status of the power relays.
-
-- **Success Response (200 OK)**
-  ```json
-  {
-    "load_12v_on": true,
-    "load_5v_on": false
-  }
-  ```
-  - `load_12v_on` (boolean): The state of the main 12V power relay.
-  - `load_5v_on` (boolean): The state of the 5V USB power relay.
-
-#### `POST /api/control`
-
-Sets the state of power relays or triggers a power action. You can send one or more commands in a single request.
-
-- **Request Body Examples**:
-  - To turn the main power on:
-    ```json
-    { "load_12v_on": true }
-    ```
-  - To trigger a system reset:
-    ```json
-    { "reset_trigger": true }
-    ```
-  - To toggle the power button:
-    ```json
-    { "power_trigger": true }
-    ```
-
-- **Request Fields**:
-  - `load_12v_on` (boolean, optional): Sets the state of the 12V relay.
-  - `load_5v_on` (boolean, optional): Sets the state of the 5V relay.
-  - `reset_trigger` (boolean, optional): If `true`, momentarily triggers the reset button (pulls the line low for 3 seconds). The action is triggered only on a `true` value.
-  - `power_trigger` (boolean, optional): If `true`, momentarily triggers the power button (pulls the line low for 3 seconds). The action is triggered only on a `true` value.
-
-- **Success Response (200 OK)**: `{"status":"ok"}`
-
----
-
-### Endpoint: `/api/setting`
-
-Manages all Wi-Fi, network, and system-related configurations.
-
-#### `GET /api/setting`
-
-Retrieves the complete current network and system configuration.
-
-- **Success Response (200 OK)**
-  ```json
-  {
-    "connected": true,
-    "ssid": "MyHome_WiFi",
-    "rssi": -65,
-    "mode": "apsta",
-    "net_type": "static",
-    "baudrate": "115200",
-    "ip": {
-        "ip": "192.168.1.100",
-        "gateway": "192.168.1.1",
-        "subnet": "255.255.255.0",
-        "dns1": "8.8.8.8",
-        "dns2": "8.8.4.4"
-    }
-  }
-  ```
-- **Response Fields**:
-  - `connected` (boolean): Current Wi-Fi connection state.
-  - `ssid` (string): The SSID of the connected network.
-  - `rssi` (integer): The Received Signal Strength Indicator in dBm. Only present if connected.
-  - `mode` (string): The current Wi-Fi mode (`"sta"` or `"apsta"`).
-  - `net_type` (string): The network type (`"dhcp"` or `"static"`).
-  - `baudrate` (string): The current UART baud rate.
-  - `ip` (object): Contains IP configuration details. Present even if using DHCP (may show the last-leased IP).
-    - `ip` (string): The device's IP address.
-    - `gateway` (string): The network gateway address.
-    - `subnet` (string): The network subnet mask.
-    - `dns1` (string): The primary DNS server address.
-    - `dns2` (string): The secondary DNS server address.
-
-#### `POST /api/setting`
-
-This is a multi-purpose endpoint. The server determines the action based on the fields provided in the request body.
-
-- **Action: Connect to a Wi-Fi Network**
-  - **Request Body**:
-    ```json
-    {
-      "ssid": "MyHome_WiFi",
-      "password": "my_secret_password"
-    }
-    ```
-  - **Success Response (200 OK)**:
-    ```json
-    { "status": "connection_initiated" }
-    ```
-
-- **Action: Configure Network Type (DHCP/Static)**
-  - **Request Body (for DHCP)**:
-    ```json
-    { "net_type": "dhcp" }
-    ```
-  - **Request Body (for Static IP)**:
-    *Note: The `ip` object structure is consistent with the `GET /api/setting` response.*
-    ```json
-    {
-      "net_type": "static",
-      "ip": {
-        "ip": "192.168.1.100",
-        "gateway": "192.168.1.1",
-        "subnet": "255.255.255.0",
-        "dns1": "8.8.8.8",
-        "dns2": "8.8.4.4"
-      }
-    }
-    ```
-  - **Success Response (200 OK)**:
-    - `{"status":"dhcp_config_applied"}`
-    - `{"status":"static_config_applied"}`
-
-- **Action: Configure Wi-Fi Mode (STA/APSTA)**
-  - **Request Body (for STA mode)**:
-    ```json
-    { "mode": "sta" }
-    ```
-  - **Request Body (for AP+STA mode)**:
-    ```json
-    {
-        "mode": "apsta",
-        "ap_ssid": "ODROID-Remote-AP",
-        "ap_password": "hardkernel"
-    }
-    ```
-    *Note: `ap_password` is optional. If omitted, the AP will be open.*
-  - **Success Response (200 OK)**: `{"status":"mode_switch_initiated"}`
-
-- **Action: Configure UART Baud Rate**
-  - **Request Body**:
-    ```json
-    { "baudrate": "115200" }
-    ```
-  - **Success Response (200 OK)**:
-    ```json
-    { "status": "baudrate_updated" }
-    ```
-
----
-
-### Endpoint: `/api/wifi/scan`
-
-Scans for available Wi-Fi networks.
-
-#### `GET /api/wifi/scan`
-
-- **Success Response (200 OK)**: Returns a JSON array of found networks.
-  ```json
-  [
-    {
-      "ssid": "MyHome_WiFi",
-      "rssi": -55,
-      "authmode": "WPA2_PSK"
-    },
-    {
-      "ssid": "GuestNetwork",
-      "rssi": -78,
-      "authmode": "OPEN"
-    }
-  ]
-  ```
-- **Response Fields**:
-  - `ssid` (string): The network's Service Set Identifier.
-  - `rssi` (integer): Signal strength in dBm.
-  - `authmode` (string): The authentication mode (e.g., `"OPEN"`, `"WPA_PSK"`, `"WPA2_PSK"`).
-
----
-
-### Endpoint: `/datalog.csv`
-
-Provides access to the historical sensor data log.
-
-#### `GET /datalog.csv`
-
-- **Description**: Downloads a CSV file containing the history of sensor data readings (voltage, current, power). The log is rotated when it reaches its maximum size (1MB).
-- **Success Response (200 OK)**: The body of the response is the CSV file content.
-- **Response Headers**:
-  - `Content-Type: text/csv`
-  - `Content-Disposition: attachment; filename="datalog.csv"`
-- **CSV Format**:
-  ```csv
-  timestamp,voltage,current,power
-  1672531200,12.01,1.52,18.25
-  1672531201,12.02,1.53,18.39
-  ...
-  ```
-
----
-
-### General Error Responses
-
-In case of an error, the server will respond with an appropriate HTTP status code.
-
-- **`400 Bad Request`**: The request is malformed, contains invalid parameters, or is otherwise incorrect. The response body may contain a JSON object with more details.
-  ```json
-  {
-    "error": "Invalid request body"
-  }
-  ```
-- **`404 Not Found`**: The requested endpoint does not exist.
-- **`500 Internal Server Error`**: The server encountered an unexpected condition that prevented it from fulfilling the request.

example/logger/.gitignore

@@ -0,0 +1,5 @@
+/.venv/
+/venv/
+status_pb2.py
+test.csv
+plot.png

example/logger/README.md

@@ -0,0 +1,140 @@
+# Odroid PowerMate Logger and Plotter
+
+This directory contains two Python scripts to log power data from an Odroid Smart Power device and visualize it.
+
+1.  `logger.py`: Connects to the device's web server, authenticates, and logs real-time power data from its WebSocket to a CSV file.
+2.  `csv_2_plot.py`: Reads the generated CSV file and creates a plot image of the power, voltage, and current data over time.
+
+## Prerequisites
+
+### 1. Clone this example
+```bash
+git clone https://github.com/hardkernel/odroid-powermate.git
+cd odroid-powermate/example/logger
+```
+
+### 2. Python and Virtual Environment
+
+It is highly recommended to use a Python virtual environment to manage project dependencies and avoid conflicts with other projects.
+
+Ensure you have Python 3 installed.
+
+1.  **Create a virtual environment:**
+    Open your terminal in this directory and run:
+    ```bash
+    python3 -m venv venv
+    ```
+    This will create a `venv` directory containing the Python interpreter and libraries.
+
+2.  **Activate the virtual environment:**
+    *   **On Windows:**
+        ```powershell
+        .\venv\Scripts\activate
+        ```
+    *   **On macOS and Linux:**
+        ```bash
+        source venv/bin/activate
+        ```
+    Your terminal prompt should now show `(venv)` at the beginning, indicating that the virtual environment is active.
+
+### 3. Install Required Libraries
+
+With the virtual environment activated, install the necessary Python packages:
+
+```bash
+pip33 install requests websockets protobuf pandas matplotlib python-dateutil
+```
+
+### 4. Protobuf Generated File
+
+The `logger.py` script uses Google Protocol Buffers (Protobuf) to decode real-time data from the WebSocket. This requires a Python file, `status_pb2.py`, which is generated from a Protobuf definition file (`status.proto`).
+
+**How to Generate `status_pb2.py`:**
+
+1.  **Install Protobuf Compiler Tools:**
+    You need the `grpcio-tools` package, which includes the `protoc` compiler and Python plugins. You can install it via pip:
+    ```bash
+    pip3 install grpcio-tools
+    ```
+
+2.  **Locate the `.proto` file:**
+    Ensure you have the `status.proto` file in the current directory. This file defines the structure of the data messages.
+
+3.  **Run the Compiler:**
+    Execute the following command in your terminal. This command tells `protoc` to look for `status.proto` in the directory (`-I../../proto`) and generate the Python output file (`--python_out=.`) in the same place.
+    ```bash
+    python3 -m grpc_tools.protoc -I../../proto --python_out=. status.proto
+    ```
+After running this command, the `status_pb2.py` file will be created, and `logger.py` will be able to use it.
+
+## Usage
+
+The process is a two-step workflow: first log the data, then plot it.
+
+### Step 1: Log Power Data with `logger.py`
+
+Run `logger.py` to connect to your Odroid Smart Power device and save the data to a CSV file.
+
+**Syntax:**
+```bash
+python3 logger.py <host> -u <username> -p <password> -o <output_file.csv>
+```
+
+**Arguments:**
+*   `host`: The IP address or hostname of the Odroid Smart Power device (e.g., `192.168.1.50`).
+*   `-u`, `--username`: The username for logging in.
+*   `-p`, `--password`: The password for logging in.
+*   `-o`, `--output`: The path to save the output CSV file. This is required if you want to generate a plot.
+
+**Example:**
+
+This command will log in and save the power data to `power_log.csv`.
+
+```bash
+python3 logger.py 192.168.1.50 -u admin -p mypassword -o power_log.csv
+```
+
+The script will continue to log data until you stop it with `Ctrl+C`.
+
+### Step 2: Generate a Plot with `csv_2_plot.py`
+
+Once you have a CSV log file, you can use `csv_2_plot.py` to create a visual graph.
+You can also use the csv file recorded from PowerMate Web.
+
+**Syntax:**
+```bash
+python3 csv_2_plot.py <input.csv> <output.png> [options]
+```
+
+**Arguments:**
+*   `input_csv`: The path to the CSV file generated by `logger.py`.
+*   `output_image`: The path to save the output plot image (e.g., `plot.png`).
+
+**Optional Arguments:**
+*   `-t`, `--type`: Specify which plots to generate. Choices are `power`, `voltage`, `current`. Default is all three.
+*   `-s`, `--source`: Specify which power sources to include. Choices are `vin`, `main`, `usb`. Default is all three.
+
+**Example 1: Default Plot**
+
+This command reads `power_log.csv` and generates a plot containing power, voltage, and current for all sources, saving it as `power_graph.png`.
+
+```bash
+python3 csv_2_plot.py power_log.csv power_graph.png
+```
+
+**Example 2: Custom Plot**
+
+This command generates a plot showing only the **power** and **current** for the **MAIN** and **USB** sources.
+
+```bash
+# main, usb power consumption
+python csv_2_plot.py power_log.csv custom_plot.png --type power --source main usb
+```
+
+## Example Output
+
+Running the plot script will generate an image file similar to this:
+
+![plot.png](img/plot.png)
+
+The 5-unit scale is highlighted with a blue dotted line, and the 10-unit scale is highlighted with a red dotted line.

example/logger/csv_2_plot.py

@@ -0,0 +1,202 @@
+import argparse
+
+import matplotlib.dates as mdates
+import matplotlib.pyplot as plt
+import pandas as pd
+from dateutil.tz import gettz
+from matplotlib.ticker import MultipleLocator
+
+
+def plot_power_data(csv_path, output_path, plot_types, sources):
+    """
+    Reads power data from a CSV file and generates a plot image.
+
+    Args:
+        csv_path (str): The path to the input CSV file.
+        output_path (str): The path to save the output plot image.
+        plot_types (list): A list of strings indicating which plots to generate
+                           (e.g., ['power', 'voltage', 'current']).
+        sources (list): A list of strings indicating which power sources to plot
+                        (e.g., ['vin', 'main', 'usb']).
+    """
+    try:
+        # Read the CSV file into a pandas DataFrame
+        df = pd.read_csv(csv_path, parse_dates=['timestamp'])
+        print(f"Successfully loaded {len(df)} records from '{csv_path}'")
+
+        # --- Timezone Conversion ---
+        local_tz = gettz()
+        df['timestamp'] = df['timestamp'].dt.tz_convert(local_tz)
+        print(f"Timestamp converted to local timezone: {local_tz}")
+
+    except FileNotFoundError:
+        print(f"Error: The file '{csv_path}' was not found.")
+        return
+    except Exception as e:
+        print(f"An error occurred while reading the CSV file: {e}")
+        return
+
+    # --- Calculate Average Interval ---
+    avg_interval_ms = 0
+    if len(df) > 1:
+        avg_interval = df['timestamp'].diff().mean()
+        avg_interval_ms = avg_interval.total_seconds() * 1000
+
+    # --- Calculate Average Voltages ---
+    avg_voltages = {}
+    for source in sources:
+        voltage_col = f'{source}_voltage'
+        if voltage_col in df.columns:
+            avg_voltages[source] = df[voltage_col].mean()
+
+    # --- Plotting Configuration ---
+    scale_config = {
+        'power': {'steps': [5, 20, 50, 160]},
+        'voltage': {'steps': [5, 10, 15, 25]},
+        'current': {'steps': [1, 2.5, 5, 10]}
+    }
+    plot_configs = {
+        'power': {'title': 'Power Consumption', 'ylabel': 'Power (W)', 'cols': [f'{s}_power' for s in sources]},
+        'voltage': {'title': 'Voltage', 'ylabel': 'Voltage (V)', 'cols': [f'{s}_voltage' for s in sources]},
+        'current': {'title': 'Current', 'ylabel': 'Current (A)', 'cols': [f'{s}_current' for s in sources]}
+    }
+
+    channel_labels = [s.upper() for s in sources]
+    color_map = {'vin': 'red', 'main': 'green', 'usb': 'blue'}
+    channel_colors = [color_map[s] for s in sources]
+
+    num_plots = len(plot_types)
+    if num_plots == 0:
+        print("No plot types selected. Exiting.")
+        return
+
+    fig, axes = plt.subplots(num_plots, 1, figsize=(15, 9 * num_plots), sharex=True, squeeze=False)
+    axes = axes.flatten()
+
+    # --- Loop through selected plot types and generate plots ---
+    for i, plot_type in enumerate(plot_types):
+        ax = axes[i]
+        config = plot_configs[plot_type]
+        max_data_value = 0
+        for j, col_name in enumerate(config['cols']):
+            if col_name in df.columns:
+                ax.plot(df['timestamp'], df[col_name], label=channel_labels[j], color=channel_colors[j], zorder=2)
+                max_col_value = df[col_name].max()
+                if max_col_value > max_data_value:
+                    max_data_value = max_col_value
+            else:
+                print(f"Warning: Column '{col_name}' not found in CSV. Skipping.")
+
+        # --- Dynamic Y-axis Scaling ---
+        ax.set_ylim(bottom=0)
+        if plot_type in scale_config:
+            steps = scale_config[plot_type]['steps']
+            new_max = next((step for step in steps if step >= max_data_value), steps[-1])
+            ax.set_ylim(top=new_max)
+
+        ax.set_title(config['title'])
+        ax.set_ylabel(config['ylabel'])
+        ax.legend()
+
+        # --- Grid and Tick Configuration ---
+        y_min, y_max = ax.get_ylim()
+
+        # Keep the dynamic major_interval logic for tick LABELS
+        if plot_type == 'current' and y_max <= 2.5:
+            major_interval = 0.5
+        elif y_max <= 10:
+            major_interval = 2
+        elif y_max <= 25:
+            major_interval = 5
+        else:
+            major_interval = y_max / 5.0
+
+        ax.yaxis.set_major_locator(MultipleLocator(major_interval))
+        ax.yaxis.set_minor_locator(MultipleLocator(1))
+
+        # Disable the default major grid, but keep the minor one
+        ax.yaxis.grid(False, which='major')
+        ax.yaxis.grid(True, which='minor', linestyle='--', linewidth=0.6, zorder=0)
+
+        # Draw custom lines for 5 and 10 multiples, which are now the only major grid lines
+        for y_val in range(int(y_min), int(y_max) + 1):
+            if y_val == 0: continue
+            if y_val % 10 == 0:
+                ax.axhline(y=y_val, color='maroon', linestyle='--', linewidth=1.2, zorder=1)
+            elif y_val % 5 == 0:
+                ax.axhline(y=y_val, color='midnightblue', linestyle='--', linewidth=1.2, zorder=1)
+
+        # Keep the x-axis grid
+        ax.xaxis.grid(True, which='major', linestyle='--', linewidth=0.8)
+
+    # --- Formatting the x-axis (Time) ---
+    local_tz = gettz()
+    last_ax = axes[-1]
+
+    if not df.empty:
+        last_ax.set_xlim(df['timestamp'].iloc[0], df['timestamp'].iloc[-1])
+
+    last_ax.xaxis.set_major_formatter(mdates.DateFormatter('%H:%M:%S', tz=local_tz))
+    last_ax.xaxis.set_major_locator(plt.MaxNLocator(15))
+    plt.xlabel(f'Time ({local_tz.tzname(df["timestamp"].iloc[-1])})')
+    plt.xticks(rotation=45)
+
+    # --- Add a main title and subtitle ---
+    start_time = df['timestamp'].iloc[0].strftime('%Y-%m-%d %H:%M:%S')
+    end_time = df['timestamp'].iloc[-1].strftime('%H:%M:%S')
+    main_title = f'PowerMate Log ({start_time} to {end_time})'
+
+    subtitle_parts = []
+    if avg_interval_ms > 0:
+        subtitle_parts.append(f'Avg. Interval: {avg_interval_ms:.2f} ms')
+
+    voltage_strings = [f'{source.upper()} Avg: {avg_v:.2f} V' for source, avg_v in avg_voltages.items()]
+    if voltage_strings:
+        subtitle_parts.extend(voltage_strings)
+
+    subtitle = ' | '.join(subtitle_parts)
+
+    full_title = main_title
+    if subtitle:
+        full_title += f'\n{subtitle}'
+
+    fig.suptitle(full_title, fontsize=14)
+
+    # Adjust layout to make space for the subtitle
+    plt.tight_layout(rect=[0, 0, 1, 0.98])
+
+    # --- Save the plot to a file ---
+    try:
+        plt.savefig(output_path, dpi=150)
+        print(f"Plot successfully saved to '{output_path}'")
+    except Exception as e:
+        print(f"An error occurred while saving the plot: {e}")
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Generate a plot from an Odroid PowerMate CSV log file.")
+    parser.add_argument("input_csv", help="Path to the input CSV log file.")
+    parser.add_argument("output_image", help="Path to save the output plot image (e.g., plot.png).")
+    parser.add_argument(
+        "-t", "--type",
+        nargs='+',
+        choices=['power', 'voltage', 'current'],
+        default=['power', 'voltage', 'current'],
+        help="Types of plots to generate. Choose from 'power', 'voltage', 'current'. "
+             "Default is to generate all three."
+    )
+    parser.add_argument(
+        "-s", "--source",
+        nargs='+',
+        choices=['vin', 'main', 'usb'],
+        default=['vin', 'main', 'usb'],
+        help="Power sources to plot. Choose from 'vin', 'main', 'usb'. "
+             "Default is to plot all three."
+    )
+    args = parser.parse_args()
+
+    plot_power_data(args.input_csv, args.output_image, args.type, args.source)
+
+
+if __name__ == "__main__":
+    main()

example/logger/logger.py

@@ -0,0 +1,153 @@
+import argparse
+import asyncio
+import csv
+import requests
+import websockets
+from datetime import datetime, timezone
+
+# Import the status_pb2.py file generated by `protoc`.
+# This file must be in the same directory as logger.py.
+import status_pb2
+
+
+class OdroidPowerLogger:
+    """
+    A class to connect to the Odroid Smart Power monitoring server and log power data.
+    1. Logs into the server via an HTTP POST request to obtain an authentication token.
+    2. Connects to the WebSocket using the obtained token.
+    3. Receives and decodes binary data in Protobuf format, then prints it.
+    """
+
+    def __init__(self, host, username, password, output_file=None):
+        self.host = host
+        self.username = username
+        self.password = password
+        self.base_url = f"http://{self.host}"
+        self.ws_url = f"ws://{self.host}/ws"
+        self.output_file = output_file
+        self.token = None
+
+    def login(self):
+        """Logs into the server to retrieve an authentication token."""
+        login_url = f"{self.base_url}/login"
+        payload = {"username": self.username, "password": self.password}
+        try:
+            print(f"Attempting to log in to '{login_url}'...")
+            response = requests.post(login_url, json=payload, timeout=5)
+            response.raise_for_status()
+
+            response_json = response.json()
+            if "token" in response_json:
+                self.token = response_json["token"]
+                print("Login successful! Token received.")
+                return True
+            else:
+                print("Login failed: No token in response.")
+                return False
+        except requests.exceptions.RequestException as e:
+            print(f"Error during login: {e}")
+            return False
+
+    async def listen_power_data(self):
+        """Connects to the WebSocket to receive and log power data."""
+        if not self.token:
+            print("Cannot connect to WebSocket without an authentication token.")
+            return
+
+        # Add the authentication token as a query parameter
+        uri = f"{self.ws_url}?token={self.token}"
+
+        csv_file = None
+        csv_writer = None
+
+        try:
+            # --- CSV File Handling ---
+            if self.output_file:
+                try:
+                    # Open the file in write mode, with newline='' to prevent extra blank rows
+                    csv_file = open(self.output_file, 'w', newline='', encoding='utf-8')
+                    csv_writer = csv.writer(csv_file)
+
+                    # Write header
+                    header = [
+                        'timestamp', 'uptime_ms',
+                        'vin_voltage', 'vin_current', 'vin_power',
+                        'main_voltage', 'main_current', 'main_power',
+                        'usb_voltage', 'usb_current', 'usb_power'
+                    ]
+                    csv_writer.writerow(header)
+                    print(f"Logging data to {self.output_file}")
+                except IOError as e:
+                    print(f"Error opening CSV file: {e}")
+                    # If file can't be opened, disable CSV writing
+                    csv_file = None
+                    csv_writer = None
+            # --- End CSV File Handling ---
+
+            async with websockets.connect(uri) as websocket:
+                print(f"Connected to WebSocket: {uri}")
+                while True:
+                    # Receive binary message from the server
+                    message_bytes = await websocket.recv()
+
+                    # Decode the Protobuf message
+                    status_message = status_pb2.StatusMessage()
+                    status_message.ParseFromString(message_bytes)
+
+                    # Process only if the payload type is 'sensor_data'
+                    if status_message.WhichOneof('payload') == 'sensor_data':
+                        sensor_data = status_message.sensor_data
+                        ts_dt = datetime.fromtimestamp(sensor_data.timestamp_ms / 1000, tz=timezone.utc)
+                        ts_str_print = ts_dt.strftime('%Y-%m-%d %H:%M:%S UTC')
+
+                        print(f"--- {ts_str_print} (Uptime: {sensor_data.uptime_ms / 1000}s) ---")
+
+                        # Print data for each channel
+                        for name, channel in [('VIN', sensor_data.vin), ('MAIN', sensor_data.main),
+                                              ('USB', sensor_data.usb)]:
+                            print(
+                                f"  {name:<4}: {channel.voltage:5.2f} V | {channel.current:5.3f} A | {channel.power:5.2f} W")
+
+                        # Write to CSV if enabled
+                        if csv_writer:
+                            ts_iso_csv = ts_dt.isoformat(timespec='milliseconds').replace('+00:00', 'Z')
+                            row = [
+                                ts_iso_csv, sensor_data.uptime_ms,
+                                sensor_data.vin.voltage, sensor_data.vin.current, sensor_data.vin.power,
+                                sensor_data.main.voltage, sensor_data.main.current, sensor_data.main.power,
+                                sensor_data.usb.voltage, sensor_data.usb.current, sensor_data.usb.power
+                            ]
+                            csv_writer.writerow(row)
+
+        except websockets.exceptions.ConnectionClosed as e:
+            print(f"WebSocket connection closed: {e}")
+        except Exception as e:
+            print(f"Error during WebSocket processing: {e}")
+        finally:
+            if csv_file:
+                csv_file.close()
+                print(f"\nCSV file '{self.output_file}' saved.")
+
+    async def run(self):
+        """Runs the logger."""
+        if self.login():
+            await self.listen_power_data()
+
+
+async def main():
+    parser = argparse.ArgumentParser(description="Odroid Smart Power Data Logger")
+    parser.add_argument("host", help="Server's host address or IP (e.g., 192.168.1.10)")
+    parser.add_argument("-u", "--username", required=True, help="Login username")
+    parser.add_argument("-p", "--password", required=True, help="Login password")
+    parser.add_argument("-o", "--output", help="Path to the output CSV file.")
+    args = parser.parse_args()
+
+    logger = OdroidPowerLogger(host=args.host, username=args.username, password=args.password, output_file=args.output)
+    await logger.run()
+
+
+if __name__ == "__main__":
+    try:
+        asyncio.run(main())
+    except KeyboardInterrupt:
+        print("\nExiting program.")

main/CMakeLists.txt

@@ -2,28 +2,34 @@
 set(WEB_APP_SOURCE_DIR ${CMAKE_SOURCE_DIR}/page)
 set(GZ_OUTPUT_FILE ${WEB_APP_SOURCE_DIR}/dist/index.html.gz)
 
+set(PROTO_DIR ${CMAKE_SOURCE_DIR}/proto)
+set(PROTO_OUT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/proto)
+set(PROTO_FILE ${PROTO_DIR}/status.proto)
+set(PROTO_C_FILE ${PROTO_OUT_DIR}/status.pb.c)
+set(PROTO_H_FILE ${PROTO_OUT_DIR}/status.pb.h)
+
 # Check npm is available
 find_program(NPM_EXECUTABLE npm)
-if(NOT NPM_EXECUTABLE)
+if (NOT NPM_EXECUTABLE)
     message(FATAL_ERROR "npm not found! Please install Node.js and npm.")
-endif()
+endif ()
 
 # Register the component. Now, CMake knows how GZ_OUTPUT_FILE is generated
 # and can correctly handle the dependency for embedding.
-idf_component_register(SRC_DIRS "app" "nconfig" "wifi" "indicator" "system" "service" "ina226"
-        INCLUDE_DIRS "include"
+idf_component_register(SRC_DIRS "app" "nconfig" "wifi" "indicator" "service" "proto"
+        INCLUDE_DIRS "include" "proto"
         EMBED_FILES ${GZ_OUTPUT_FILE}
 )
 
 # Define a custom command to build the web app.
 # This command explicitly tells CMake that it produces the GZ_OUTPUT_FILE.
 add_custom_command(
-    OUTPUT ${GZ_OUTPUT_FILE}
-    COMMAND npm install
-    COMMAND npm run build
-    WORKING_DIRECTORY ${WEB_APP_SOURCE_DIR}
-    # Re-run the build if any of these files change
-    DEPENDS
+        OUTPUT ${GZ_OUTPUT_FILE}
+        COMMAND npm install
+        COMMAND npm run build
+        WORKING_DIRECTORY ${WEB_APP_SOURCE_DIR}
+        # Re-run the build if any of these files change
+        DEPENDS
         ${WEB_APP_SOURCE_DIR}/package.json
         ${WEB_APP_SOURCE_DIR}/vite.config.js
         ${WEB_APP_SOURCE_DIR}/index.html
@@ -38,14 +44,46 @@ add_custom_command(
         ${WEB_APP_SOURCE_DIR}/src/utils.js
         ${WEB_APP_SOURCE_DIR}/src/websocket.js
 
-    COMMENT "Building Node.js project (npm install && npm run build)"
-    VERBATIM
+        COMMENT "Building Node.js project (npm install && npm run build)"
+        VERBATIM
 )
 
 # Create a target that depends on the output file. When this target is built,
 # it ensures the custom command above is executed first.
 add_custom_target(build_web_app ALL
-    DEPENDS ${GZ_OUTPUT_FILE}
+        DEPENDS ${GZ_OUTPUT_FILE}
 )
 
+add_custom_command(
+        OUTPUT ${PROTO_C_FILE} ${PROTO_H_FILE}
+        COMMAND protoc --nanopb_out=${PROTO_OUT_DIR} status.proto
+        WORKING_DIRECTORY ${PROTO_DIR}
+        DEPENDS ${PROTO_FILE}
+        COMMENT "Generating C sources from ${PROTO_FILE} using nanopb"
+        VERBATIM
+)
 
+add_custom_target(protobuf_generate ALL
+        DEPENDS ${PROTO_C_FILE} ${PROTO_H_FILE}
+)
+
+add_dependencies(${COMPONENT_LIB} build_web_app)
+add_dependencies(${COMPONENT_LIB} protobuf_generate)
+
+execute_process(
+        COMMAND git rev-parse --short HEAD
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_HASH
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+
+add_compile_definitions(VERSION_HASH="${GIT_HASH}")
+
+execute_process(
+        COMMAND git describe --tags --abbrev=0
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_TAG
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+
+add_compile_definitions(VERSION_TAG="${GIT_TAG}")

main/Kconfig

@@ -2,27 +2,34 @@ menu "ODROID-MONITOR"
 	menu "GPIO"
 		orsource "$IDF_PATH/examples/common_components/env_caps/$IDF_TARGET/Kconfig.env_caps"
 
-		config GPIO_INA226_SCL
+		config I2C_GPIO_SCL
 			int "INA226 SCL GPIO Num"
 			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
-			default 0
-			help
-				GPIO number for I2C Master data line.
-
-		config GPIO_INA226_SDA
-			int "INA226 SDA GPIO Num"
-			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
 			default 1
 			help
 				GPIO number for I2C Master data line.
 
-		config GPIO_INA226_INT
-			int "INA226 ALERT GPIO Num"
+		config I2C_GPIO_SDA
+			int "INA226 SDA GPIO Num"
 			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
-			default 10
+			default 0
 			help
 				GPIO number for I2C Master data line.
 
+		config GPIO_INA3221_INT_CRITICAL
+			int "INA226 ALERT GPIO Num"
+			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
+			default 9
+			help
+				GPIO number for critical int pin.
+
+		config GPIO_INA3221_INT_WARNING
+			int "INA226 WARNING GPIO Num"
+			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
+			default 5
+			help
+				GPIO number for critical int pin.
+
 		config GPIO_UART_TX
 			int "UART TX GPIO Num"
 			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
@@ -40,43 +47,64 @@ menu "ODROID-MONITOR"
 		config GPIO_LED_STATUS
 			int "Status LED GPIO Num"
 			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
-			default 8
+			default 2
 			help
 				GPIO number for LED.
 
 		config GPIO_LED_WIFI
 			int "Wi-Fi LED GPIO Num"
 			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
-			default 9
+			default 3
 			help
 				GPIO number for LED.
 
-		config GPIO_SW_12V
+		config GPIO_EXPANDER_RESET
+			int "Trigger reset GPIO Num"
+			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
+			default 8
+			help
+				GPIO number for Reset expander.
+
+		config EXPANDER_GPIO_SW_12V
 			int "12v Load Switch GPIO Num"
 			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
-			default 4
-			help
-				GPIO number for Load switch.
-
-		config GPIO_SW_5V
-			int "5v Load Switch GPIO Num"
-			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
-			default 5
-			help
-				GPIO number for Load switch.
-
-		config GPIO_TRIGGER_POWER
-			int "Trigger power GPIO Num"
-			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
 			default 2
 			help
-				GPIO number for Trigger.
+				GPIO number for Load switch.
 
-		config GPIO_TRIGGER_RESET
-			int "Trigger reset GPIO Num"
+		config EXPANDER_GPIO_SW_5V
+			int "5v Load Switch GPIO Num"
 			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
 			default 3
+			help
+				GPIO number for Load switch.
+
+		config EXPANDER_GPIO_TRIGGER_POWER
+			int "Trigger power GPIO Num"
+			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
+			default 0
 			help
 				GPIO number for Trigger.
+
+		config EXPANDER_GPIO_TRIGGER_RESET
+			int "Trigger reset GPIO Num"
+			range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
+			default 1
+			help
+				GPIO number for Trigger.
+
+		config TRIGGER_POWER_DELAY_MS
+			int "Trigger reset GPIO Num"
+			range 100 5000
+			default 3000
+			help
+				Reset delay ms.
+
+		config TRIGGER_RESET_DELAY_MS
+			int "Trigger reset GPIO Num"
+			range 100 5000
+			default 1000
+			help
+				Reset delay ms.
 	endmenu
 endmenu

main/app/odroid-power-mate.c

@@ -1,50 +1,44 @@
 #include <stdio.h>
 #include <string.h>
-#include <sys/param.h>
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-#include "freertos/queue.h"
-#include "esp_system.h"
-#include "esp_wifi.h"
 #include "esp_event.h"
 #include "esp_log.h"
-#include "nvs_flash.h"
 #include "esp_netif.h"
-#include "driver/uart.h"
-#include "esp_http_server.h"
+#include "esp_wifi.h"
+#include "freertos/FreeRTOS.h"
+#include "i2cdev.h"
 #include "indicator.h"
 #include "nconfig.h"
+#include "nvs_flash.h"
 #include "system.h"
 #include "wifi.h"
+#include "storage.h"
 
-#include "lwip/err.h"
-#include "lwip/sockets.h"
-#include "lwip/sys.h"
+void app_main(void)
+{
+    printf("\n\n== ODROID POWER-MATE ===\n");
+    printf("Version: %s-%s\n\n", VERSION_TAG, VERSION_HASH);
 
-static const char *TAG = "odroid-remote";
-
-void app_main(void) {
+    ESP_ERROR_CHECK(i2cdev_init());
     init_led();
     led_set(LED_BLU, BLINK_TRIPLE);
     led_off(LED_BLU);
 
-    // NVS 초기화
     esp_err_t ret = nvs_flash_init();
-    if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
+    if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND)
+    {
         ESP_ERROR_CHECK(nvs_flash_erase());
         ret = nvs_flash_init();
     }
     ESP_ERROR_CHECK(ret);
 
-    // 네트워크 초기화
     ESP_ERROR_CHECK(esp_netif_init());
     ESP_ERROR_CHECK(esp_event_loop_create_default());
 
     ESP_ERROR_CHECK(init_nconfig());
 
-    // WiFi 연결
+    wifi_init();
     wifi_connect();
     sync_time();
 
     start_webserver();
-}
+}

main/idf_component.yml

@@ -1,3 +1,5 @@
 dependencies:
   espressif/led_indicator: ^1.1.1
-  joltwallet/littlefs: ==1.20.1
+  esp-idf-lib/ina3221: ^1.1.7
+  esp-idf-lib/pca9557: ^1.0.7
+  nikas-belogolov/nanopb: ^1.0.0

main/ina226/ina226.c

@@ -1,118 +0,0 @@
-#include "ina226.h"
-
-#include <stdint.h>
-#include <string.h>
-#include <math.h>
-#include <esp_err.h>
-
-#define INA226_REG_CONFIG           (0x00)
-#define INA226_REG_SHUNT_VOLTAGE    (0x01)
-#define INA226_REG_BUS_VOLTAGE      (0x02)
-#define INA226_REG_POWER            (0x03)
-#define INA226_REG_CURRENT          (0x04)
-#define INA226_REG_CALIBRATION      (0x05)
-#define INA226_REG_ALERT_MASK       (0x06)
-#define INA226_REG_ALERT_LIMIT      (0x07)
-#define INA226_REG_MANUFACTURER_ID  (0xFE)
-#define INA226_REG_DIE_ID           (0xFF)
-
-#define INA226_CFG_AVERAGING_OFFSET 9
-#define INA226_CFG_BUS_VOLTAGE_OFFSET 6
-#define INA226_CFG_SHUNT_VOLTAGE_OFFSET 3
-
-static esp_err_t ina226_read_reg(ina226_t *handle, uint8_t reg_addr, uint16_t *data, size_t len)
-{
-    return i2c_master_transmit_receive(handle->dev_handle, &reg_addr, 1, (uint8_t *)data, len, handle->timeout_ms);
-}
-
-static esp_err_t ina226_write_reg(ina226_t *handle, uint8_t reg_addr, uint16_t value)
-{
-    uint8_t write_buf[3] = {reg_addr, value >> 8, value & 0xFF};
-    return i2c_master_transmit(handle->dev_handle, write_buf, sizeof(write_buf), handle->timeout_ms);
-}
-
-esp_err_t ina226_get_manufacturer_id(ina226_t *device, uint16_t *manufacturer_id)
-{
-    return ina226_read_reg(device, INA226_REG_MANUFACTURER_ID, manufacturer_id, 2);
-}
-
-esp_err_t ina226_get_die_id(ina226_t *device, uint16_t *die_id)
-{
-    return ina226_read_reg(device, INA226_REG_DIE_ID, die_id, 2);
-}
-
-esp_err_t ina226_get_shunt_voltage(ina226_t *device, float *voltage)
-{
-    uint8_t data[2];
-    esp_err_t err = ina226_read_reg(device, INA226_REG_SHUNT_VOLTAGE, (uint16_t*)data, 2);
-    *voltage = (float) (data[0] << 8 | data[1]) * 2.5e-6f; /* fixed to 2.5 uV */
-    return err;
-}
-
-esp_err_t ina226_get_bus_voltage(ina226_t *device, float *voltage)
-{
-    uint8_t data[2];
-    esp_err_t err = ina226_read_reg(device, INA226_REG_BUS_VOLTAGE, (uint16_t*)data, 2);
-    *voltage = (float) (data[0] << 8 | data[1]) * 0.00125f;
-    return err;
-}
-
-esp_err_t ina226_get_current(ina226_t *device, float *current)
-{
-    uint8_t data[2];
-    esp_err_t err = ina226_read_reg(device, INA226_REG_CURRENT, (uint16_t*)data, 2);
-    *current = ((float) (data[0] << 8 | data[1])) * device->current_lsb;
-    return err;
-}
-
-esp_err_t ina226_get_power(ina226_t *device, float *power)
-{
-    uint8_t data[2];
-    esp_err_t err = ina226_read_reg(device, INA226_REG_POWER, (uint16_t*)data, 2);
-    *power = (float) (data[0] << 8 | data[1]) * device->power_lsb;
-    return err;
-}
-
-esp_err_t ina226_init(ina226_t *device, i2c_master_dev_handle_t dev_handle, const ina226_config_t *config)
-{
-    esp_err_t err;
-    device->timeout_ms = config->timeout_ms;
-    device->dev_handle = dev_handle;
-    uint16_t bitmask = 0;
-    bitmask |= (config->averages << INA226_CFG_AVERAGING_OFFSET);
-    bitmask |= (config->bus_conv_time << INA226_CFG_BUS_VOLTAGE_OFFSET);
-    bitmask |= (config->shunt_conv_time << INA226_CFG_SHUNT_VOLTAGE_OFFSET);
-    bitmask |= config->mode;
-    err = ina226_write_reg(device, INA226_REG_CONFIG, bitmask);
-    if(err != ESP_OK) return err;
-
-    /* write calibration*/
-    float minimum_lsb = config->max_current / 32767;
-    float current_lsb = (uint16_t)(minimum_lsb * 100000000);
-    current_lsb /= 100000000;
-    current_lsb /= 0.0001;
-    current_lsb = ceil(current_lsb);
-    current_lsb *= 0.0001;
-    device->current_lsb = current_lsb;
-    device->power_lsb = current_lsb * 25;
-    uint16_t calibration_value = (uint16_t)((0.00512) / (current_lsb * config->r_shunt));
-    err = ina226_write_reg(device, INA226_REG_CALIBRATION, calibration_value);
-    if(err != ESP_OK) return err;
-
-    return ESP_OK;
-}
-
-esp_err_t ina226_get_alert_mask(ina226_t *device, ina226_alert_t *alert_mask)
-{
-    return ina226_read_reg(device, INA226_REG_ALERT_MASK, (uint16_t *)alert_mask, 2);
-}
-
-esp_err_t ina226_set_alert_mask(ina226_t *device, ina226_alert_t alert_mask)
-{
-    return ina226_write_reg(device, INA226_REG_ALERT_MASK, (uint16_t)alert_mask);
-}
-
-esp_err_t ina226_set_alert_limit(ina226_t *device, float voltage)
-{
-    return ina226_write_reg(device, INA226_REG_ALERT_LIMIT, (uint16_t)(voltage));
-}

main/include/ina226.h

@@ -1,105 +0,0 @@
-#ifndef _INA226_H_
-#define _INA226_H_
-
-#include <stdint.h>
-#include "esp_err.h"
-#include "driver/i2c_master.h"
-
-typedef enum
-{
-    INA226_AVERAGES_1             = 0b000,
-    INA226_AVERAGES_4             = 0b001,
-    INA226_AVERAGES_16            = 0b010,
-    INA226_AVERAGES_64            = 0b011,
-    INA226_AVERAGES_128           = 0b100,
-    INA226_AVERAGES_256           = 0b101,
-    INA226_AVERAGES_512           = 0b110,
-    INA226_AVERAGES_1024          = 0b111
-} ina226_averages_t;
-
-typedef enum
-{
-    INA226_BUS_CONV_TIME_140_US    = 0b000,
-    INA226_BUS_CONV_TIME_204_US    = 0b001,
-    INA226_BUS_CONV_TIME_332_US    = 0b010,
-    INA226_BUS_CONV_TIME_588_US    = 0b011,
-    INA226_BUS_CONV_TIME_1100_US   = 0b100,
-    INA226_BUS_CONV_TIME_2116_US   = 0b101,
-    INA226_BUS_CONV_TIME_4156_US   = 0b110,
-    INA226_BUS_CONV_TIME_8244_US   = 0b111
-} ina226_bus_conv_time_t;
-
-
-typedef enum
-{
-    INA226_SHUNT_CONV_TIME_140_US   = 0b000,
-    INA226_SHUNT_CONV_TIME_204_US   = 0b001,
-    INA226_SHUNT_CONV_TIME_332_US   = 0b010,
-    INA226_SHUNT_CONV_TIME_588_US   = 0b011,
-    INA226_SHUNT_CONV_TIME_1100_US  = 0b100,
-    INA226_SHUNT_CONV_TIME_2116_US  = 0b101,
-    INA226_SHUNT_CONV_TIME_4156_US  = 0b110,
-    INA226_SHUNT_CONV_TIME_8244_US  = 0b111
-} ina226_shunt_conv_time_t;
-
-typedef enum
-{
-
-    INA226_MODE_POWER_DOWN      = 0b000,
-    INA226_MODE_SHUNT_TRIG      = 0b001,
-    INA226_MODE_BUS_TRIG        = 0b010,
-    INA226_MODE_SHUNT_BUS_TRIG  = 0b011,
-    INA226_MODE_ADC_OFF         = 0b100,
-    INA226_MODE_SHUNT_CONT      = 0b101,
-    INA226_MODE_BUS_CONT        = 0b110,
-    INA226_MODE_SHUNT_BUS_CONT  = 0b111,
-} ina226_mode_t;
-
-typedef enum
-{
-    INA226_ALERT_SHUNT_OVER_VOLTAGE     = 0xf,
-    INA226_ALERT_SHUNT_UNDER_VOLTAGE    = 0xe,
-    INA226_ALERT_BUS_OVER_VOLTAGE       = 0xd,
-    INA226_ALERT_BUS_UNDER_VOLTAGE      = 0xc,
-    INA226_ALERT_POWER_OVER_LIMIT       = 0xb,
-    INA226_ALERT_CONVERSION_READY       = 0xa,
-    INA226_ALERT_FUNCTION_FLAG          = 0x4,
-    INA226_ALERT_CONVERSION_READY_FLAG  = 0x3,
-    INA226_ALERT_MATH_OVERFLOW_FLAG     = 0x2,
-    INA226_ALERT_POLARITY               = 0x1,
-    INA226_ALERT_LATCH_ENABLE           = 0x0
-} ina226_alert_t;
-
-typedef struct
-{
-    i2c_port_t i2c_port;
-    int i2c_addr;
-    int timeout_ms;
-    ina226_averages_t averages;
-    ina226_bus_conv_time_t bus_conv_time;
-    ina226_shunt_conv_time_t shunt_conv_time;
-    ina226_mode_t mode;
-    float r_shunt; /* ohm */
-    float max_current; /* amps */
-} ina226_config_t;
-
-typedef struct
-{
-    i2c_master_dev_handle_t dev_handle;
-    int timeout_ms;
-    float current_lsb;
-    float power_lsb;
-} ina226_t;
-
-esp_err_t ina226_get_manufacturer_id(ina226_t *device, uint16_t *manufacturer_id);
-esp_err_t ina226_get_die_id(ina226_t *device, uint16_t *die_id);
-esp_err_t ina226_get_shunt_voltage(ina226_t *device, float *voltage);
-esp_err_t ina226_get_bus_voltage(ina226_t *device, float *voltage);
-esp_err_t ina226_get_current(ina226_t *device, float *current);
-esp_err_t ina226_get_power(ina226_t *device, float *power);
-esp_err_t ina226_get_alert_mask(ina226_t *device, ina226_alert_t *alert_mask);
-esp_err_t ina226_set_alert_mask(ina226_t *device, ina226_alert_t alert_mask);
-esp_err_t ina226_set_alert_limit(ina226_t *device, float voltage);
-esp_err_t ina226_init(ina226_t *device, i2c_master_dev_handle_t dev_handle, const ina226_config_t *config);
-
-#endif

main/include/indicator.h

@@ -5,25 +5,50 @@
 #ifndef LED_H
 #define LED_H
 
+/**
+ * @brief Defines the different blinking patterns for the LEDs.
+ */
 enum blink_type
 {
-    BLINK_SLOW = 0,
-    BLINK_FAST,
-    BLINK_DOUBLE,
-    BLINK_TRIPLE,
-    BLINK_SOLID,
-    BLINK_MAX,
+    BLINK_SLOW = 0, ///< Slow blinking pattern.
+    BLINK_FAST,     ///< Fast blinking pattern.
+    BLINK_DOUBLE,   ///< Double blink pattern.
+    BLINK_TRIPLE,   ///< Triple blink pattern.
+    BLINK_SOLID,    ///< Solid (always on) state.
+    BLINK_MAX,      ///< Sentinel for the number of blink types.
 };
 
+/**
+ * @brief Defines the available LEDs that can be controlled.
+ */
 enum blink_led
 {
-    LED_RED = 0,
-    LED_BLU = 1,
-    LED_MAX,
+    LED_RED = 0, ///< The red LED.
+    LED_BLU = 1, ///< The blue LED.
+    LED_MAX,     ///< Sentinel for the number of LEDs.
 };
 
+/**
+ * @brief Initializes the LED indicator system.
+ *
+ * This function sets up the GPIOs and timers required for the LED blinking patterns.
+ * It should be called once during application startup.
+ */
 void init_led(void);
+
+/**
+ * @brief Sets a specific blinking pattern for an LED.
+ *
+ * @param led The LED to control (e.g., LED_RED, LED_BLU).
+ * @param type The blinking pattern to apply (e.g., BLINK_FAST, BLINK_SOLID).
+ */
 void led_set(enum blink_led led, enum blink_type type);
+
+/**
+ * @brief Turns off a specific LED.
+ *
+ * @param led The LED to turn off.
+ */
 void led_off(enum blink_led led);
 
-#endif //LED_H
+#endif // LED_H

main/include/nconfig.h

@@ -1,46 +1,100 @@
-//
-// Created by shinys on 25. 7. 10.
-//
+/**
+ * @file nconfig.h
+ * @brief Provides an interface for managing system configuration using Non-Volatile Storage (NVS).
+ */
 
 #ifndef NCONFIG_H
 #define NCONFIG_H
 
-#include "nvs.h"
 #include "esp_err.h"
+#include "nvs.h"
 
-#define NCONFIG_NVS_NAMESPACE "er"
-#define NCONFIG_NOT_FOUND ESP_ERR_NVS_NOT_FOUND
+#define NCONFIG_NVS_NAMESPACE "er" ///< The NVS namespace where all configurations are stored.
+#define NCONFIG_NOT_FOUND ESP_ERR_NVS_NOT_FOUND ///< Alias for the NVS not found error code.
 
+/**
+ * @brief Initializes the nconfig module.
+ *
+ * This function initializes the Non-Volatile Storage (NVS) component, which is required
+ * for all other nconfig operations. It should be called once at application startup.
+ * @return ESP_OK on success, or an error code on failure.
+ */
 esp_err_t init_nconfig();
 
+/**
+ * @brief Defines the keys for all configuration values managed by nconfig.
+ */
 enum nconfig_type
 {
-    WIFI_SSID,
-    WIFI_PASSWORD,
-    WIFI_MODE,
-    AP_SSID,
-    AP_PASSWORD,
-    NETIF_HOSTNAME,
-    NETIF_IP,
-    NETIF_GATEWAY,
-    NETIF_SUBNET,
-    NETIF_DNS1,
-    NETIF_DNS2,
-    NETIF_TYPE,
-    UART_BAUD_RATE,
-    NCONFIG_TYPE_MAX,
+    WIFI_SSID,          ///< The SSID of the Wi-Fi network to connect to (STA mode).
+    WIFI_PASSWORD,      ///< The password for the Wi-Fi network (STA mode).
+    WIFI_MODE,          ///< The Wi-Fi operating mode (e.g., "sta" or "apsta").
+    AP_SSID,            ///< The SSID for the device's Access Point mode.
+    AP_PASSWORD,        ///< The password for the device's Access Point mode.
+    NETIF_HOSTNAME,     ///< The hostname of the device on the network.
+    NETIF_IP,           ///< The static IP address for the STA interface.
+    NETIF_GATEWAY,      ///< The gateway address for the STA interface.
+    NETIF_SUBNET,       ///< The subnet mask for the STA interface.
+    NETIF_DNS1,         ///< The primary DNS server address.
+    NETIF_DNS2,         ///< The secondary DNS server address.
+    NETIF_TYPE,         ///< The network interface type (e.g., "dhcp" or "static").
+    UART_BAUD_RATE,     ///< The baud rate for the UART communication.
+    VIN_CURRENT_LIMIT, ///< The maximum current limit for the VIN.
+    MAIN_CURRENT_LIMIT, ///< The maximum current limit for the MAIN out.
+    USB_CURRENT_LIMIT, ///< The maximum current limit for the USB out.
+    PAGE_USERNAME, ///< Webpage username
+    PAGE_PASSWORD, ///< Webpage password
+    SENSOR_PERIOD_MS, ///< Sensor period
+    NCONFIG_TYPE_MAX,   ///< Sentinel for the maximum number of configuration types.
 };
 
-// Write config
+/**
+ * @brief Erase all of nvs data and restart system
+ */
+void reset_nconfig();
+
+/**
+ * @brief Checks if a specific configuration value has been set.
+ *
+ * @param type The configuration key to check.
+ * @return True if the value is not set, false otherwise.
+ */
+bool nconfig_value_is_not_set(enum nconfig_type type);
+
+/**
+ * @brief Writes a configuration value to NVS.
+ *
+ * @param type The configuration key to write.
+ * @param data A pointer to the string data to be stored.
+ * @return ESP_OK on success, or an error code on failure.
+ */
 esp_err_t nconfig_write(enum nconfig_type type, const char* data);
 
-// Check config is set and get config value length
-esp_err_t nconfig_get_str_len(enum nconfig_type type, size_t *len);
+/**
+ * @brief Gets the length of a stored string configuration value.
+ *
+ * @param type The configuration key to query.
+ * @param[out] len A pointer to a size_t variable to store the length.
+ * @return ESP_OK on success, NCONFIG_NOT_FOUND if the key doesn't exist, or another error code.
+ */
+esp_err_t nconfig_get_str_len(enum nconfig_type type, size_t* len);
 
-// Read config
+/**
+ * @brief Reads a configuration value from NVS.
+ *
+ * @param type The configuration key to read.
+ * @param[out] data A buffer to store the read data.
+ * @param len The length of the buffer. It should be large enough to hold the value.
+ * @return ESP_OK on success, or an error code on failure.
+ */
 esp_err_t nconfig_read(enum nconfig_type type, char* data, size_t len);
 
-// Remove key
+/**
+ * @brief Deletes a configuration key-value pair from NVS.
+ *
+ * @param type The configuration key to delete.
+ * @return ESP_OK on success, or an error code on failure.
+ */
 esp_err_t nconfig_delete(enum nconfig_type type);
 
-#endif //NCONFIG_H
+#endif // NCONFIG_H

main/include/storage.h

@@ -0,0 +1,6 @@
+#ifndef STORAGE_H_
+#define STORAGE_H_
+
+void storage_init(void);
+
+#endif /* STORAGE_H_ */

main/include/system.h

@@ -1,12 +1,33 @@
-//
-// Created by shinys on 25. 8. 5.
-//
+/**
+ * @file system.h
+ * @brief Declares system-level functions for core operations like rebooting and starting services.
+ */
 
 #ifndef SYSTEM_H
 #define SYSTEM_H
 
+/**
+ * @brief Starts a timer that will reboot the system after a specified duration.
+ *
+ * This function is non-blocking. It schedules a system reboot to occur in the future.
+ * @param sec The number of seconds to wait before rebooting.
+ */
 void start_reboot_timer(int sec);
-void stop_reboot_timer();
-void start_webserver();
 
-#endif //SYSTEM_H
+/**
+ * @brief Stops any pending reboot timer that was previously started.
+ *
+ * If a reboot timer is active, this function will cancel it, preventing the system from rebooting.
+ */
+void stop_reboot_timer();
+
+/**
+ * @brief Initializes and starts the main web server.
+ *
+ * This function sets up the HTTP server, registers all URI handlers for web pages,
+ * API endpoints (like control and settings), and the WebSocket endpoint. It also
+ * initializes the status monitor that provides real-time data.
+ */
+void start_webserver(void);
+
+#endif // SYSTEM_H

main/include/wifi.h

@@ -8,16 +8,106 @@
 #include "esp_netif_types.h"
 #include "esp_wifi_types_generic.h"
 
+/**
+ * @brief Initializes the Wi-Fi driver, network interfaces, and event handlers.
+ */
+void wifi_init(void);
+
+/**
+ * @brief Converts a Wi-Fi authentication mode enum to its string representation.
+ * @param mode The Wi-Fi authentication mode.
+ * @return A string describing the authentication mode.
+ */
 const char* auth_mode_str(wifi_auth_mode_t mode);
+
+/**
+ * @brief Converts a Wi-Fi disconnection reason enum to its string representation.
+ * @param reason The reason for disconnection.
+ * @return A string describing the reason.
+ */
+const char* wifi_reason_str(wifi_err_reason_t reason);
+
+/**
+ * @brief Connects the device to the configured Wi-Fi AP in STA mode.
+ * @return ESP_OK on success, or an error code on failure.
+ */
 esp_err_t wifi_connect(void);
+
+/**
+ * @brief Disconnects the device from the current Wi-Fi AP in STA mode.
+ * @return ESP_OK on success, or an error code on failure.
+ */
 esp_err_t wifi_disconnect(void);
-void wifi_scan_aps(wifi_ap_record_t **ap_records, uint16_t* count);
-esp_err_t wifi_get_current_ap_info(wifi_ap_record_t *ap_info);
-esp_err_t wifi_get_current_ip_info(esp_netif_ip_info_t *ip_info);
-esp_err_t wifi_get_dns_info(esp_netif_dns_type_t type, esp_netif_dns_info_t *dns_info);
+
+/**
+ * @brief Scans for available Wi-Fi access points.
+ * @param ap_records A pointer to store the found AP records.
+ * @param count A pointer to store the number of found APs.
+ */
+void wifi_scan_aps(wifi_ap_record_t** ap_records, uint16_t* count);
+
+/**
+ * @brief Gets information about the currently connected access point.
+ * @param ap_info A pointer to a structure to store the AP information.
+ * @return ESP_OK on success, or an error code on failure.
+ */
+esp_err_t wifi_get_current_ap_info(wifi_ap_record_t* ap_info);
+
+/**
+ * @brief Gets the current IP information for the STA interface.
+ * @param ip_info A pointer to a structure to store the IP information.
+ * @return ESP_OK on success, or an error code on failure.
+ */
+esp_err_t wifi_get_current_ip_info(esp_netif_ip_info_t* ip_info);
+
+/**
+ * @brief Gets the DNS server information for the STA interface.
+ * @param type The type of DNS server (main, backup, fallback).
+ * @param dns_info A pointer to a structure to store the DNS information.
+ * @return ESP_OK on success, or an error code on failure.
+ */
+esp_err_t wifi_get_dns_info(esp_netif_dns_type_t type, esp_netif_dns_info_t* dns_info);
+
+/**
+ * @brief Configures the STA interface to use DHCP.
+ * @return ESP_OK on success, or an error code on failure.
+ */
 esp_err_t wifi_use_dhcp(void);
-esp_err_t wifi_use_static(const char *ip, const char *gw, const char *netmask, const char *dns1, const char *dns2);
+
+/**
+ * @brief Configures the STA interface to use a static IP address.
+ * @param ip The static IP address.
+ * @param gw The gateway address.
+ * @param netmask The subnet mask.
+ * @param dns1 The primary DNS server.
+ * @param dns2 The secondary DNS server (optional).
+ * @return ESP_OK on success, or an error code on failure.
+ */
+esp_err_t wifi_use_static(const char* ip, const char* gw, const char* netmask, const char* dns1, const char* dns2);
+
+/**
+ * @brief Switches the Wi-Fi operating mode (e.g., sta, apsta).
+ * @param mode The target Wi-Fi mode as a string ("sta" or "apsta").
+ * @return ESP_OK on success, or an error code on failure.
+ */
 esp_err_t wifi_switch_mode(const char* mode);
+
+/**
+ * @brief Initializes the SNTP service for time synchronization.
+ */
+void initialize_sntp(void);
+
+/**
+ * @brief Starts the SNTP time synchronization process.
+ */
 void sync_time();
 
-#endif //WIFI_H
+/**
+ * @brief Sets the SSID and password for the STA mode, saves them to NVS, and connects to the AP.
+ * @param ssid The SSID of the access point.
+ * @param password The password of the access point.
+ * @return ESP_OK on success, or an error code on failure.
+ */
+esp_err_t wifi_sta_set_ap(const char* ssid, const char* password);
+
+#endif // WIFI_H

main/indicator/indicator.c

@@ -48,13 +48,9 @@ static const blink_step_t solid_blink[] = {
     {LED_BLINK_LOOP, 0, 0},
 };
 
-blink_step_t const *led_mode[] = {
-    [BLINK_SLOW] = slow_blink,
-    [BLINK_FAST] = fast_blink,
-    [BLINK_DOUBLE] = double_blink,
-    [BLINK_TRIPLE] = triple_blink,
-    [BLINK_SOLID] = solid_blink,
-    [BLINK_MAX] = NULL,
+blink_step_t const* led_mode[] = {
+    [BLINK_SLOW] = slow_blink,     [BLINK_FAST] = fast_blink,   [BLINK_DOUBLE] = double_blink,
+    [BLINK_TRIPLE] = triple_blink, [BLINK_SOLID] = solid_blink, [BLINK_MAX] = NULL,
 };
 
 led_indicator_handle_t led_handle[LED_MAX] = {0};
@@ -65,7 +61,7 @@ void init_led(void)
     led_indicator_ledc_config_t ledc_config = {0};
     led_indicator_config_t config = {0};
 
-    ledc_config.is_active_level_high = true;
+    ledc_config.is_active_level_high = false;
     ledc_config.timer_inited = false;
     ledc_config.timer_num = LEDC_TIMER_0;
     ledc_config.gpio_num = LED_STATUS_GPIO;
@@ -78,7 +74,7 @@ void init_led(void)
 
     led_handle[LED_RED] = led_indicator_create(&config);
 
-    ledc_config.is_active_level_high = true;
+    ledc_config.is_active_level_high = false;
     ledc_config.timer_inited = false;
     ledc_config.timer_num = LEDC_TIMER_0;
     ledc_config.gpio_num = LED_WIFI_GPIO;

main/nconfig/nconfig.c

@@ -4,12 +4,14 @@
 
 #include "nconfig.h"
 
-#include "nvs_flash.h"
+#include "indicator.h"
+#include "system.h"
 #include "esp_err.h"
+#include "nvs_flash.h"
 
 static nvs_handle_t handle;
 
-const static char *keys[NCONFIG_TYPE_MAX] = {
+const static char* keys[NCONFIG_TYPE_MAX] = {
     [WIFI_SSID] = "wifi_ssid",
     [WIFI_PASSWORD] = "wifi_pw",
     [WIFI_MODE] = "wifi_mode",
@@ -23,15 +25,22 @@ const static char *keys[NCONFIG_TYPE_MAX] = {
     [NETIF_DNS2] = "dns2",
     [NETIF_TYPE] = "dhcp",
     [UART_BAUD_RATE] = "baudrate",
+    [VIN_CURRENT_LIMIT] = "vin_climit",
+    [MAIN_CURRENT_LIMIT] = "main_climit",
+    [USB_CURRENT_LIMIT] = "usb_climit",
+    [PAGE_USERNAME] = "username",
+    [PAGE_PASSWORD] = "password",
+    [SENSOR_PERIOD_MS] = "sensor_period",
 };
 
-struct default_value {
+struct default_value
+{
     enum nconfig_type type;
-    const char *value;
+    const char* value;
 };
 
 struct default_value const default_values[] = {
-    {WIFI_SSID, "HK_BOB_24G"},
+    {WIFI_SSID, ""},
     {WIFI_PASSWORD, ""},
     {NETIF_TYPE, "dhcp"},
     {NETIF_HOSTNAME, "powermate"},
@@ -39,22 +48,29 @@ struct default_value const default_values[] = {
     {NETIF_DNS1, "8.8.8.8"},
     {NETIF_DNS2, "8.8.4.4"},
     {WIFI_MODE, "apsta"},
-    {AP_SSID, "odroid-pm"},
-    {AP_PASSWORD, "powermate"},
+    {AP_SSID, "powermate"},
+    {AP_PASSWORD, "hardkernel"},
+    {VIN_CURRENT_LIMIT, "4.0"},
+    {MAIN_CURRENT_LIMIT, "3.0"},
+    {USB_CURRENT_LIMIT, "3.0"},
+    {PAGE_USERNAME, "admin"},
+    {PAGE_PASSWORD, "password"},
+    {SENSOR_PERIOD_MS, "1000"},
 };
 
 esp_err_t init_nconfig()
 {
     esp_err_t ret = nvs_open(NCONFIG_NVS_NAMESPACE, NVS_READWRITE, &handle);
-    if (ret != ESP_OK) return ret;
+    if (ret != ESP_OK)
+        return ret;
 
-    for (int i = 0; i < sizeof(default_values) / sizeof(default_values[0]); ++i) {
+    for (int i = 0; i < sizeof(default_values) / sizeof(default_values[0]); ++i)
+    {
         // check key is not exist or value is null
-        size_t len = 0;
-        nconfig_get_str_len(default_values[i].type, &len);
-        if (len <= 1) // nconfig_get_str_len return err or value is '\0'
+        if (nconfig_value_is_not_set(default_values[i].type))
         {
-            if (nconfig_write(default_values[i].type, default_values[i].value) != ESP_OK) // if nconfig write fail, system panic
+            if (nconfig_write(default_values[i].type, default_values[i].value) != ESP_OK)
+                // if nconfig write fail, system panic
                 return ESP_FAIL;
         }
     }
@@ -62,17 +78,25 @@ esp_err_t init_nconfig()
     return ESP_OK;
 }
 
-esp_err_t nconfig_write(enum nconfig_type type, const char* data)
+void reset_nconfig()
 {
-    return nvs_set_str(handle, keys[type], data);
+    nvs_erase_all(handle);
+    led_set(LED_RED, BLINK_FAST);
+    start_reboot_timer(1);
 }
 
-esp_err_t nconfig_delete(enum nconfig_type type)
+bool nconfig_value_is_not_set(enum nconfig_type type)
 {
-    return nvs_erase_key(handle, keys[type]);
+    size_t len = 0;
+    esp_err_t err = nconfig_get_str_len(type, &len);
+    return (err != ESP_OK || len <= 1);
 }
 
-esp_err_t nconfig_get_str_len(enum nconfig_type type, size_t *len)
+esp_err_t nconfig_write(enum nconfig_type type, const char* data) { return nvs_set_str(handle, keys[type], data); }
+
+esp_err_t nconfig_delete(enum nconfig_type type) { return nvs_erase_key(handle, keys[type]); }
+
+esp_err_t nconfig_get_str_len(enum nconfig_type type, size_t* len)
 {
     return nvs_get_str(handle, keys[type], NULL, len);
 }
@@ -85,4 +109,4 @@ esp_err_t nconfig_read(enum nconfig_type type, char* data, size_t len)
 esp_err_t nconfig_read_bool(enum nconfig_type type, char* data, size_t len)
 {
     return nvs_get_str(handle, keys[type], data, &len);
-}
+}

main/proto/.clang-format

@@ -0,0 +1 @@
+DisableFormat: true

main/proto/status.pb.c

@@ -0,0 +1,27 @@
+/* Automatically generated nanopb constant definitions */
+/* Generated by nanopb-0.4.8 */
+
+#include "status.pb.h"
+#if PB_PROTO_HEADER_VERSION != 40
+#error Regenerate this file with the current version of nanopb generator.
+#endif
+
+PB_BIND(SensorChannelData, SensorChannelData, AUTO)
+
+
+PB_BIND(SensorData, SensorData, AUTO)
+
+
+PB_BIND(WifiStatus, WifiStatus, AUTO)
+
+
+PB_BIND(UartData, UartData, AUTO)
+
+
+PB_BIND(LoadSwStatus, LoadSwStatus, AUTO)
+
+
+PB_BIND(StatusMessage, StatusMessage, AUTO)
+
+
+

main/proto/status.pb.h

@@ -0,0 +1,181 @@
+/* Automatically generated nanopb header */
+/* Generated by nanopb-0.4.8 */
+
+#ifndef PB_STATUS_PB_H_INCLUDED
+#define PB_STATUS_PB_H_INCLUDED
+#include <pb.h>
+
+#if PB_PROTO_HEADER_VERSION != 40
+#error Regenerate this file with the current version of nanopb generator.
+#endif
+
+/* Struct definitions */
+/* Represents data for a single sensor channel */
+typedef struct _SensorChannelData {
+    float voltage;
+    float current;
+    float power;
+} SensorChannelData;
+
+/* Contains data for all sensor channels and system info */
+typedef struct _SensorData {
+    bool has_usb;
+    SensorChannelData usb;
+    bool has_main;
+    SensorChannelData main;
+    bool has_vin;
+    SensorChannelData vin;
+    uint64_t timestamp_ms;
+    uint64_t uptime_ms;
+} SensorData;
+
+/* Contains WiFi connection status */
+typedef struct _WifiStatus {
+    bool connected;
+    pb_callback_t ssid;
+    int32_t rssi;
+    pb_callback_t ip_address;
+} WifiStatus;
+
+/* Contains raw UART data */
+typedef struct _UartData {
+    pb_callback_t data;
+} UartData;
+
+/* Contains load sw status */
+typedef struct _LoadSwStatus {
+    bool main;
+    bool usb;
+} LoadSwStatus;
+
+/* Top-level message for all websocket communication */
+typedef struct _StatusMessage {
+    pb_size_t which_payload;
+    union {
+        SensorData sensor_data;
+        WifiStatus wifi_status;
+        LoadSwStatus sw_status;
+        UartData uart_data;
+    } payload;
+} StatusMessage;
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Initializer values for message structs */
+#define SensorChannelData_init_default           {0, 0, 0}
+#define SensorData_init_default                  {false, SensorChannelData_init_default, false, SensorChannelData_init_default, false, SensorChannelData_init_default, 0, 0}
+#define WifiStatus_init_default                  {0, {{NULL}, NULL}, 0, {{NULL}, NULL}}
+#define UartData_init_default                    {{{NULL}, NULL}}
+#define LoadSwStatus_init_default                {0, 0}
+#define StatusMessage_init_default               {0, {SensorData_init_default}}
+#define SensorChannelData_init_zero              {0, 0, 0}
+#define SensorData_init_zero                     {false, SensorChannelData_init_zero, false, SensorChannelData_init_zero, false, SensorChannelData_init_zero, 0, 0}
+#define WifiStatus_init_zero                     {0, {{NULL}, NULL}, 0, {{NULL}, NULL}}
+#define UartData_init_zero                       {{{NULL}, NULL}}
+#define LoadSwStatus_init_zero                   {0, 0}
+#define StatusMessage_init_zero                  {0, {SensorData_init_zero}}
+
+/* Field tags (for use in manual encoding/decoding) */
+#define SensorChannelData_voltage_tag            1
+#define SensorChannelData_current_tag            2
+#define SensorChannelData_power_tag              3
+#define SensorData_usb_tag                       1
+#define SensorData_main_tag                      2
+#define SensorData_vin_tag                       3
+#define SensorData_timestamp_ms_tag              4
+#define SensorData_uptime_ms_tag                 5
+#define WifiStatus_connected_tag                 1
+#define WifiStatus_ssid_tag                      2
+#define WifiStatus_rssi_tag                      3
+#define WifiStatus_ip_address_tag                4
+#define UartData_data_tag                        1
+#define LoadSwStatus_main_tag                    1
+#define LoadSwStatus_usb_tag                     2
+#define StatusMessage_sensor_data_tag            1
+#define StatusMessage_wifi_status_tag            2
+#define StatusMessage_sw_status_tag              3
+#define StatusMessage_uart_data_tag              4
+
+/* Struct field encoding specification for nanopb */
+#define SensorChannelData_FIELDLIST(X, a) \
+X(a, STATIC,   SINGULAR, FLOAT,    voltage,           1) \
+X(a, STATIC,   SINGULAR, FLOAT,    current,           2) \
+X(a, STATIC,   SINGULAR, FLOAT,    power,             3)
+#define SensorChannelData_CALLBACK NULL
+#define SensorChannelData_DEFAULT NULL
+
+#define SensorData_FIELDLIST(X, a) \
+X(a, STATIC,   OPTIONAL, MESSAGE,  usb,               1) \
+X(a, STATIC,   OPTIONAL, MESSAGE,  main,              2) \
+X(a, STATIC,   OPTIONAL, MESSAGE,  vin,               3) \
+X(a, STATIC,   SINGULAR, UINT64,   timestamp_ms,      4) \
+X(a, STATIC,   SINGULAR, UINT64,   uptime_ms,         5)
+#define SensorData_CALLBACK NULL
+#define SensorData_DEFAULT NULL
+#define SensorData_usb_MSGTYPE SensorChannelData
+#define SensorData_main_MSGTYPE SensorChannelData
+#define SensorData_vin_MSGTYPE SensorChannelData
+
+#define WifiStatus_FIELDLIST(X, a) \
+X(a, STATIC,   SINGULAR, BOOL,     connected,         1) \
+X(a, CALLBACK, SINGULAR, STRING,   ssid,              2) \
+X(a, STATIC,   SINGULAR, INT32,    rssi,              3) \
+X(a, CALLBACK, SINGULAR, STRING,   ip_address,        4)
+#define WifiStatus_CALLBACK pb_default_field_callback
+#define WifiStatus_DEFAULT NULL
+
+#define UartData_FIELDLIST(X, a) \
+X(a, CALLBACK, SINGULAR, BYTES,    data,              1)
+#define UartData_CALLBACK pb_default_field_callback
+#define UartData_DEFAULT NULL
+
+#define LoadSwStatus_FIELDLIST(X, a) \
+X(a, STATIC,   SINGULAR, BOOL,     main,              1) \
+X(a, STATIC,   SINGULAR, BOOL,     usb,               2)
+#define LoadSwStatus_CALLBACK NULL
+#define LoadSwStatus_DEFAULT NULL
+
+#define StatusMessage_FIELDLIST(X, a) \
+X(a, STATIC,   ONEOF,    MESSAGE,  (payload,sensor_data,payload.sensor_data),   1) \
+X(a, STATIC,   ONEOF,    MESSAGE,  (payload,wifi_status,payload.wifi_status),   2) \
+X(a, STATIC,   ONEOF,    MESSAGE,  (payload,sw_status,payload.sw_status),   3) \
+X(a, STATIC,   ONEOF,    MESSAGE,  (payload,uart_data,payload.uart_data),   4)
+#define StatusMessage_CALLBACK NULL
+#define StatusMessage_DEFAULT NULL
+#define StatusMessage_payload_sensor_data_MSGTYPE SensorData
+#define StatusMessage_payload_wifi_status_MSGTYPE WifiStatus
+#define StatusMessage_payload_sw_status_MSGTYPE LoadSwStatus
+#define StatusMessage_payload_uart_data_MSGTYPE UartData
+
+extern const pb_msgdesc_t SensorChannelData_msg;
+extern const pb_msgdesc_t SensorData_msg;
+extern const pb_msgdesc_t WifiStatus_msg;
+extern const pb_msgdesc_t UartData_msg;
+extern const pb_msgdesc_t LoadSwStatus_msg;
+extern const pb_msgdesc_t StatusMessage_msg;
+
+/* Defines for backwards compatibility with code written before nanopb-0.4.0 */
+#define SensorChannelData_fields &SensorChannelData_msg
+#define SensorData_fields &SensorData_msg
+#define WifiStatus_fields &WifiStatus_msg
+#define UartData_fields &UartData_msg
+#define LoadSwStatus_fields &LoadSwStatus_msg
+#define StatusMessage_fields &StatusMessage_msg
+
+/* Maximum encoded size of messages (where known) */
+/* WifiStatus_size depends on runtime parameters */
+/* UartData_size depends on runtime parameters */
+/* StatusMessage_size depends on runtime parameters */
+#define LoadSwStatus_size                        4
+#define STATUS_PB_H_MAX_SIZE                     SensorData_size
+#define SensorChannelData_size                   15
+#define SensorData_size                          73
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif

main/service/auth.c

@@ -0,0 +1,222 @@
+#include "auth.h"
+
+#include <esp_http_server.h>
+#include <esp_random.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/semphr.h"
+
+static const char* TAG = "AUTH";
+
+typedef struct
+{
+    char token[TOKEN_LENGTH];
+    bool active;
+    time_t creation_time;
+} auth_token_t;
+
+static auth_token_t s_tokens[MAX_TOKENS];
+static SemaphoreHandle_t s_token_mutex;
+
+void auth_init(void)
+{
+    s_token_mutex = xSemaphoreCreateMutex();
+    if (s_token_mutex == NULL)
+    {
+        ESP_LOGE(TAG, "Failed to create token mutex");
+        return;
+    }
+    for (int i = 0; i < MAX_TOKENS; i++)
+    {
+        s_tokens[i].active = false;
+        s_tokens[i].token[0] = '\0';
+    }
+    ESP_LOGI(TAG, "Auth module initialized.");
+}
+
+char* auth_generate_token(void)
+{
+    if (xSemaphoreTake(s_token_mutex, portMAX_DELAY) != pdTRUE)
+    {
+        ESP_LOGE(TAG, "Failed to take token mutex");
+        return NULL;
+    }
+
+    int free_slot = -1;
+    for (int i = 0; i < MAX_TOKENS; i++)
+    {
+        if (!s_tokens[i].active)
+        {
+            free_slot = i;
+            break;
+        }
+    }
+
+    if (free_slot == -1)
+    {
+        ESP_LOGW(TAG, "No free token slots available. Invalidating oldest token.");
+        time_t oldest_time = time(NULL);
+        int oldest_idx = -1;
+        for (int i = 0; i < MAX_TOKENS; i++)
+        {
+            if (s_tokens[i].active && s_tokens[i].creation_time < oldest_time)
+            {
+                oldest_time = s_tokens[i].creation_time;
+                oldest_idx = i;
+            }
+        }
+        if (oldest_idx != -1)
+        {
+            s_tokens[oldest_idx].active = false;
+            free_slot = oldest_idx;
+            ESP_LOGI(TAG, "Oldest token at index %d invalidated.", oldest_idx);
+        }
+        else
+        {
+            ESP_LOGE(TAG, "Could not find an oldest token to invalidate. This should not happen if all are active.");
+            xSemaphoreGive(s_token_mutex);
+            return NULL;
+        }
+    }
+
+    const char charset[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+    char* new_token = (char*)malloc(TOKEN_LENGTH);
+    if (new_token == NULL)
+    {
+        ESP_LOGE(TAG, "Failed to allocate memory for new token");
+        xSemaphoreGive(s_token_mutex);
+        return NULL;
+    }
+
+    for (int i = 0; i < TOKEN_LENGTH - 1; i++)
+    {
+        new_token[i] = charset[esp_random() % (sizeof(charset) - 1)];
+    }
+    new_token[TOKEN_LENGTH - 1] = '\0';
+
+    strncpy(s_tokens[free_slot].token, new_token, TOKEN_LENGTH);
+    s_tokens[free_slot].active = true;
+    s_tokens[free_slot].creation_time = time(NULL);
+
+    ESP_LOGI(TAG, "Generated new token at slot %d: %s", free_slot, new_token);
+
+    xSemaphoreGive(s_token_mutex);
+    return new_token;
+}
+
+bool auth_validate_token(const char* token)
+{
+    if (token == NULL)
+    {
+        return false;
+    }
+
+    if (xSemaphoreTake(s_token_mutex, portMAX_DELAY) != pdTRUE)
+    {
+        ESP_LOGE(TAG, "Failed to take token mutex");
+        return false;
+    }
+
+    bool valid = false;
+    for (int i = 0; i < MAX_TOKENS; i++)
+    {
+        if (s_tokens[i].active && strcmp(s_tokens[i].token, token) == 0)
+        {
+            valid = true;
+            break;
+        }
+    }
+
+    xSemaphoreGive(s_token_mutex);
+    return valid;
+}
+
+void auth_invalidate_token(const char* token)
+{
+    if (token == NULL)
+    {
+        return;
+    }
+
+    if (xSemaphoreTake(s_token_mutex, portMAX_DELAY) != pdTRUE)
+    {
+        ESP_LOGE(TAG, "Failed to take token mutex");
+        return;
+    }
+
+    for (int i = 0; i < MAX_TOKENS; i++)
+    {
+        if (s_tokens[i].active && strcmp(s_tokens[i].token, token) == 0)
+        {
+            s_tokens[i].active = false;
+            s_tokens[i].token[0] = '\0'; // Clear token string
+            ESP_LOGI(TAG, "Token at slot %d invalidated.", i);
+            break;
+        }
+    }
+
+    xSemaphoreGive(s_token_mutex);
+}
+
+void auth_cleanup_expired_tokens(void) { ESP_LOGD(TAG, "auth_cleanup_expired_tokens called (no-op for now)."); }
+
+static const char* get_token_from_header(httpd_req_t* req)
+{
+    char* auth_header = NULL;
+    size_t buf_len;
+
+    if (httpd_req_get_hdr_value_len(req, "Authorization") == 0)
+    {
+        return NULL;
+    }
+
+    buf_len = httpd_req_get_hdr_value_len(req, "Authorization") + 1;
+    auth_header = (char*)malloc(buf_len);
+    if (auth_header == NULL)
+    {
+        ESP_LOGE(TAG, "Failed to allocate memory for auth header");
+        return NULL;
+    }
+
+    if (httpd_req_get_hdr_value_str(req, "Authorization", auth_header, buf_len) != ESP_OK)
+    {
+        free(auth_header);
+        return NULL;
+    }
+
+    if (strncmp(auth_header, "Bearer ", 7) == 0)
+    {
+        const char* token = auth_header + 7;
+        return token;
+    }
+
+    free(auth_header);
+    return NULL;
+}
+
+esp_err_t api_auth_check(httpd_req_t* req)
+{
+    const char* token = get_token_from_header(req);
+
+    if (token == NULL)
+    {
+        ESP_LOGW(TAG, "API access attempt without token for URI: %s", req->uri);
+        httpd_resp_send_err(req, HTTPD_401_UNAUTHORIZED, "Authorization token required");
+        return ESP_FAIL;
+    }
+
+    if (!auth_validate_token(token))
+    {
+        ESP_LOGW(TAG, "API access attempt with invalid token for URI: %s", req->uri);
+        httpd_resp_send_err(req, HTTPD_401_UNAUTHORIZED, "Invalid or expired token");
+        free((void*)token - 7);
+        return ESP_FAIL;
+    }
+
+    ESP_LOGD(TAG, "Token validated for URI: %s", req->uri);
+    free((void*)token - 7);
+    return ESP_OK;
+}

main/service/auth.h

@@ -0,0 +1,28 @@
+#ifndef AUTH_H
+#define AUTH_H
+
+#include <stdbool.h>
+#include "esp_err.h"
+#include "esp_http_server.h"
+
+#define MAX_TOKENS 4
+#define TOKEN_LENGTH 33 // 32 characters + null terminator
+
+// Function to initialize the authentication module
+void auth_init(void);
+
+// Function to generate a new token
+char* auth_generate_token(void);
+
+// Function to validate a token
+bool auth_validate_token(const char* token);
+
+// Function to invalidate a token (e.g., on logout)
+void auth_invalidate_token(const char* token);
+
+// Function to clean up expired tokens (if any)
+void auth_cleanup_expired_tokens(void);
+
+esp_err_t api_auth_check(httpd_req_t* req);
+
+#endif // AUTH_H

main/service/climit.h

@@ -0,0 +1,21 @@
+//
+// Created by shinys on 25. 9. 4..
+//
+
+#ifndef ODROID_POWER_MATE_CLIMIT_H
+#define ODROID_POWER_MATE_CLIMIT_H
+
+#include "esp_err.h"
+
+#include <stdbool.h>
+
+#define VIN_CURRENT_LIMIT_MAX 8.0f
+#define MAIN_CURRENT_LIMIT_MAX 7.5f
+#define USB_CURRENT_LIMIT_MAX 4.5f
+
+esp_err_t climit_set_vin(double value);
+esp_err_t climit_set_main(double value);
+esp_err_t climit_set_usb(double value);
+bool is_overcurrent();
+
+#endif // ODROID_POWER_MATE_CLIMIT_H

main/service/control.c

@@ -1,49 +1,26 @@
-#include "webserver.h"
+#include "auth.h"
+#include "cJSON.h"
 #include "driver/gpio.h"
 #include "esp_http_server.h"
 #include "esp_log.h"
-#include "cJSON.h"
 #include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-#include "freertos/semphr.h"
-#include "esp_timer.h"
+#include "sw.h"
+#include "webserver.h"
 
-#define GPIO_12V_SWITCH CONFIG_GPIO_SW_12V
-#define GPIO_5V_SWITCH  CONFIG_GPIO_SW_5V
-#define GPIO_POWER_TRIGGER CONFIG_GPIO_TRIGGER_POWER
-#define GPIO_RESET_TRIGGER CONFIG_GPIO_TRIGGER_RESET
-
-static bool status_12v_on = false;
-static bool status_5v_on = false;
-static SemaphoreHandle_t state_mutex;
-static esp_timer_handle_t power_trigger_timer;
-static esp_timer_handle_t reset_trigger_timer;
-
-/**
- * @brief 타이머 만료 시 GPIO를 다시 HIGH로 설정하는 콜백 함수
- */
-static void trigger_off_callback(void* arg)
+static esp_err_t control_get_handler(httpd_req_t* req)
 {
-    gpio_num_t gpio_pin = (int) arg;
-    gpio_set_level(gpio_pin, 1); // 핀을 다시 HIGH로 복구
-}
+    esp_err_t err = api_auth_check(req);
+    if (err != ESP_OK)
+    {
+        return err;
+    }
 
-static void update_gpio_switches()
-{
-    gpio_set_level(GPIO_12V_SWITCH, status_12v_on);
-    gpio_set_level(GPIO_5V_SWITCH, status_5v_on);
-}
+    cJSON* root = cJSON_CreateObject();
 
-static esp_err_t control_get_handler(httpd_req_t *req)
-{
-    cJSON *root = cJSON_CreateObject();
+    cJSON_AddBoolToObject(root, "load_12v_on", get_main_load_switch());
+    cJSON_AddBoolToObject(root, "load_5v_on", get_usb_load_switch());
 
-    xSemaphoreTake(state_mutex, portMAX_DELAY);
-    cJSON_AddBoolToObject(root, "load_12v_on", status_12v_on);
-    cJSON_AddBoolToObject(root, "load_5v_on", status_5v_on);
-    xSemaphoreGive(state_mutex);
-
-    char *json_string = cJSON_Print(root);
+    char* json_string = cJSON_Print(root);
     httpd_resp_set_type(req, "application/json");
     httpd_resp_send(req, json_string, strlen(json_string));
 
@@ -53,64 +30,56 @@ static esp_err_t control_get_handler(httpd_req_t *req)
     return ESP_OK;
 }
 
-static esp_err_t control_post_handler(httpd_req_t *req)
+static esp_err_t control_post_handler(httpd_req_t* req)
 {
+    esp_err_t err = api_auth_check(req);
+    if (err != ESP_OK)
+    {
+        return err;
+    }
+
     char buf[128];
     int ret, remaining = req->content_len;
 
-    if (remaining >= sizeof(buf)) {
+    if (remaining >= sizeof(buf))
+    {
         httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Request content too long");
         return ESP_FAIL;
     }
 
     ret = httpd_req_recv(req, buf, remaining);
-    if (ret <= 0) {
-        if (ret == HTTPD_SOCK_ERR_TIMEOUT) {
+    if (ret <= 0)
+    {
+        if (ret == HTTPD_SOCK_ERR_TIMEOUT)
+        {
             httpd_resp_send_408(req);
         }
         return ESP_FAIL;
     }
     buf[ret] = '\0';
 
-    cJSON *root = cJSON_Parse(buf);
-    if (root == NULL) {
+    cJSON* root = cJSON_Parse(buf);
+    if (root == NULL)
+    {
         httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid JSON format");
         return ESP_FAIL;
     }
 
-    bool state_changed = false;
-    xSemaphoreTake(state_mutex, portMAX_DELAY);
+    cJSON* item_12v = cJSON_GetObjectItem(root, "load_12v_on");
+    if (cJSON_IsBool(item_12v))
+        set_main_load_switch(cJSON_IsTrue(item_12v));
 
-    cJSON *item_12v = cJSON_GetObjectItem(root, "load_12v_on");
-    if (cJSON_IsBool(item_12v)) {
-        status_12v_on = cJSON_IsTrue(item_12v);
-        state_changed = true;
-    }
+    cJSON* item_5v = cJSON_GetObjectItem(root, "load_5v_on");
+    if (cJSON_IsBool(item_5v))
+        set_usb_load_switch(cJSON_IsTrue(item_5v));
 
-    cJSON *item_5v = cJSON_GetObjectItem(root, "load_5v_on");
-    if (cJSON_IsBool(item_5v)) {
-        status_5v_on = cJSON_IsTrue(item_5v);
-        state_changed = true;
-    }
+    cJSON* power_trigger = cJSON_GetObjectItem(root, "power_trigger");
+    if (cJSON_IsTrue(power_trigger))
+        trig_power();
 
-    if (state_changed) {
-        update_gpio_switches();
-    }
-    xSemaphoreGive(state_mutex);
-
-    cJSON *power_trigger = cJSON_GetObjectItem(root, "power_trigger");
-    if (cJSON_IsTrue(power_trigger)) {
-        gpio_set_level(GPIO_POWER_TRIGGER, 0);
-        esp_timer_stop(power_trigger_timer); // Stop timer if it's already running
-        ESP_ERROR_CHECK(esp_timer_start_once(power_trigger_timer, 3000000)); // 3초
-    }
-
-    cJSON *reset_trigger = cJSON_GetObjectItem(root, "reset_trigger");
-    if (cJSON_IsTrue(reset_trigger)) {
-        gpio_set_level(GPIO_RESET_TRIGGER, 0);
-        esp_timer_stop(reset_trigger_timer); // Stop timer if it's already running
-        ESP_ERROR_CHECK(esp_timer_start_once(reset_trigger_timer, 3000000)); // 3초
-    }
+    cJSON* reset_trigger = cJSON_GetObjectItem(root, "reset_trigger");
+    if (cJSON_IsTrue(reset_trigger))
+        trig_reset();
 
     cJSON_Delete(root);
 
@@ -118,64 +87,13 @@ static esp_err_t control_post_handler(httpd_req_t *req)
     return ESP_OK;
 }
 
-static void control_module_init(void)
-{
-    state_mutex = xSemaphoreCreateMutex();
-
-    gpio_config_t switch_conf = {
-        .pin_bit_mask = (1ULL << GPIO_12V_SWITCH) | (1ULL << GPIO_5V_SWITCH),
-        .mode = GPIO_MODE_OUTPUT,
-        .pull_up_en = GPIO_PULLUP_DISABLE,
-        .pull_down_en = GPIO_PULLDOWN_DISABLE,
-        .intr_type = GPIO_INTR_DISABLE,
-    };
-    gpio_config(&switch_conf);
-    update_gpio_switches();
-
-    gpio_config_t trigger_conf = {
-        .pin_bit_mask = (1ULL << GPIO_POWER_TRIGGER) | (1ULL << GPIO_RESET_TRIGGER),
-        .mode = GPIO_MODE_OUTPUT,
-        .pull_up_en = GPIO_PULLUP_ENABLE,
-        .pull_down_en = GPIO_PULLDOWN_DISABLE,
-        .intr_type = GPIO_INTR_DISABLE,
-    };
-    gpio_config(&trigger_conf);
-    gpio_set_level(GPIO_POWER_TRIGGER, 1);
-    gpio_set_level(GPIO_RESET_TRIGGER, 1);
-
-    const esp_timer_create_args_t power_timer_args = {
-            .callback = &trigger_off_callback,
-            .arg = (void*) GPIO_POWER_TRIGGER,
-            .name = "power_trigger_off"
-    };
-    ESP_ERROR_CHECK(esp_timer_create(&power_timer_args, &power_trigger_timer));
-
-    const esp_timer_create_args_t reset_timer_args = {
-            .callback = &trigger_off_callback,
-            .arg = (void*) GPIO_RESET_TRIGGER,
-            .name = "reset_trigger_off"
-    };
-    ESP_ERROR_CHECK(esp_timer_create(&reset_timer_args, &reset_trigger_timer));
-
-}
-
 void register_control_endpoint(httpd_handle_t server)
 {
-    control_module_init();
-    httpd_uri_t get_uri = {
-        .uri      = "/api/control",
-        .method   = HTTP_GET,
-        .handler  = control_get_handler,
-        .user_ctx = NULL
-    };
+    init_sw();
+    httpd_uri_t get_uri = {.uri = "/api/control", .method = HTTP_GET, .handler = control_get_handler, .user_ctx = NULL};
     httpd_register_uri_handler(server, &get_uri);
 
     httpd_uri_t post_uri = {
-        .uri      = "/api/control",
-        .method   = HTTP_POST,
-        .handler  = control_post_handler,
-        .user_ctx = NULL
-    };
+        .uri = "/api/control", .method = HTTP_POST, .handler = control_post_handler, .user_ctx = NULL};
     httpd_register_uri_handler(server, &post_uri);
-
-}
+}

main/service/datalog.c

@@ -1,171 +0,0 @@
-#include "datalog.h"
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include "esp_littlefs.h"
-#include "esp_log.h"
-
-static const char* TAG = "DATALOG";
-static const char* LOG_FILE_PATH = "/littlefs/datalog.csv";
-#define MAX_LOG_SIZE (1024 * 1024)
-
-void datalog_init(void)
-{
-    ESP_LOGI(TAG, "Initializing DataLog with LittleFS");
-
-    esp_vfs_littlefs_conf_t conf = {
-        .base_path = "/littlefs",
-        .partition_label = "littlefs",
-        .format_if_mount_failed = true,
-        .dont_mount = false,
-    };
-
-    esp_err_t ret = esp_vfs_littlefs_register(&conf);
-
-    if (ret != ESP_OK)
-    {
-        if (ret == ESP_FAIL)
-        {
-            ESP_LOGE(TAG, "Failed to mount or format filesystem");
-        }
-        else if (ret == ESP_ERR_NOT_FOUND)
-        {
-            ESP_LOGE(TAG, "Failed to find LittleFS partition");
-        }
-        else
-        {
-            ESP_LOGE(TAG, "Failed to initialize LittleFS (%s)", esp_err_to_name(ret));
-        }
-        return;
-    }
-
-    size_t total = 0, used = 0;
-    ret = esp_littlefs_info(NULL, &total, &used);
-    if (ret != ESP_OK)
-    {
-        ESP_LOGE(TAG, "Failed to get LittleFS partition information (%s)", esp_err_to_name(ret));
-    }
-    else
-    {
-        ESP_LOGI(TAG, "Partition size: total: %d, used: %d", total, used);
-    }
-
-    // Check if file exists
-    FILE* f = fopen(LOG_FILE_PATH, "r");
-    if (f == NULL)
-    {
-        ESP_LOGI(TAG, "Log file not found, creating new one.");
-        FILE* f_write = fopen(LOG_FILE_PATH, "w");
-        if (f_write == NULL)
-        {
-            ESP_LOGE(TAG, "Failed to create log file.");
-        }
-        else
-        {
-            // Add header
-            fprintf(f_write, "timestamp,voltage,current,power\n");
-            fclose(f_write);
-        }
-    }
-    else
-    {
-        ESP_LOGI(TAG, "Log file found.");
-        fclose(f);
-    }
-}
-
-void datalog_add(uint32_t timestamp, float voltage, float current, float power)
-{
-    char new_line[100];
-    int new_line_len = snprintf(new_line, sizeof(new_line), "%lu,%.3f,%.3f,%.3f\n", timestamp, voltage, current, power);
-
-    struct stat st;
-    long size = 0;
-    if (stat(LOG_FILE_PATH, &st) == 0)
-    {
-        size = st.st_size;
-    }
-
-    if (size + new_line_len <= MAX_LOG_SIZE)
-    {
-        FILE* f = fopen(LOG_FILE_PATH, "a");
-        if (f == NULL)
-        {
-            ESP_LOGE(TAG, "Failed to open log file for appending.");
-            return;
-        }
-        fputs(new_line, f);
-        fclose(f);
-    }
-    else
-    {
-        ESP_LOGI(TAG, "Log file is full. Rotating log file.");
-        FILE* f = fopen(LOG_FILE_PATH, "r+");
-        if (f == NULL)
-        {
-            ESP_LOGE(TAG, "Failed to open log file for rotation.");
-            return;
-        }
-
-        long size_to_remove = (size + new_line_len) - MAX_LOG_SIZE;
-        char line[256];
-
-        // Keep header
-        if (fgets(line, sizeof(line), f) == NULL)
-        {
-            ESP_LOGE(TAG, "Could not read header");
-            fclose(f);
-            return;
-        }
-        long header_len = strlen(line);
-
-        // Find the starting position of the data to keep (read position)
-        fseek(f, header_len, SEEK_SET);
-        long bytes_skipped = 0;
-        while (fgets(line, sizeof(line), f) != NULL)
-        {
-            bytes_skipped += strlen(line);
-            if (bytes_skipped >= size_to_remove)
-            {
-                break;
-            }
-        }
-
-        long read_pos = ftell(f) - strlen(line);
-        long write_pos = header_len;
-
-        char buffer[256];
-        
-        while (1)
-        {
-            fseek(f, read_pos, SEEK_SET);
-            size_t bytes_read = fread(buffer, 1, sizeof(buffer), f);
-            if (bytes_read == 0)
-            {
-                break;
-            }
-            read_pos = ftell(f);
-
-            fseek(f, write_pos, SEEK_SET);
-            fwrite(buffer, 1, bytes_read, f);
-            write_pos = ftell(f);
-        }
-
-        if (ftruncate(fileno(f), write_pos) != 0) {
-            ESP_LOGE(TAG, "Failed to truncate log file.");
-        }
-
-        fseek(f, 0, SEEK_END);
-        fputs(new_line, f);
-        fclose(f);
-
-        ESP_LOGI(TAG, "Log file rotated successfully.");
-    }
-}
-
-const char* datalog_get_path(void)
-{
-    return LOG_FILE_PATH;
-}

main/service/datalog.h

@@ -1,10 +0,0 @@
-#ifndef MAIN_SERVICE_DATALOG_H_
-#define MAIN_SERVICE_DATALOG_H_
-
-#include <stdint.h>
-
-void datalog_init(void);
-void datalog_add(uint32_t timestamp, float voltage, float current, float power);
-const char* datalog_get_path(void);
-
-#endif /* MAIN_SERVICE_DATALOG_H_ */

main/service/dbg_console.c

@@ -0,0 +1,182 @@
+#include "dbg_console.h"
+
+#include <stdio.h>
+#include <string.h>
+#include "argtable3/argtable3.h"
+#include "esp_console.h"
+#include "esp_log.h"
+#include "esp_netif.h"
+#include "esp_system.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#include "wifi.h"
+
+
+/* 'wifi_scan' command */
+static int wifi_scan_handler(int argc, char** argv)
+{
+    printf("Scanning for Wi-Fi networks...\n");
+
+    wifi_ap_record_t* ap_records;
+    uint16_t count = 0;
+
+    wifi_scan_aps(&ap_records, &count);
+
+    if (count == 0)
+    {
+        printf("No APs found.\n");
+        return 0;
+    }
+
+    printf("Found %d APs:\n", count);
+    printf("  %-32s %-4s %s\n", "SSID", "RSSI", "Auth Mode");
+    for (int i = 0; i < count; i++)
+    {
+        printf("  %-32s %-4d %s\n", ap_records[i].ssid, ap_records[i].rssi, auth_mode_str(ap_records[i].authmode));
+    }
+
+    if (count > 0)
+    {
+        free(ap_records);
+    }
+
+    return 0;
+}
+
+static void register_wifi_scan(void)
+{
+    const esp_console_cmd_t cmd = {
+        .command = "wifi_scan",
+        .help = "Scan for available Wi-Fi networks",
+        .hint = NULL,
+        .func = &wifi_scan_handler,
+    };
+    ESP_ERROR_CHECK(esp_console_cmd_register(&cmd));
+}
+
+static struct
+{
+    struct arg_str* ssid;
+    struct arg_str* password;
+    struct arg_end* end;
+} wifi_connect_args;
+
+static int wifi_connect_handler(int argc, char** argv)
+{
+    int nerrors = arg_parse(argc, argv, (void**)&wifi_connect_args);
+    if (nerrors != 0)
+    {
+        arg_print_errors(stderr, wifi_connect_args.end, argv[0]);
+        return 1;
+    }
+
+    const char* ssid = wifi_connect_args.ssid->sval[0];
+    char password[64] = "";
+
+    if (wifi_connect_args.password->count != 0)
+        strncpy(password, wifi_connect_args.password->sval[0], sizeof(password));
+
+    printf("Attempting to connect to SSID: %s\n", ssid);
+
+    esp_err_t err = wifi_sta_set_ap(ssid, password);
+
+    if (err == ESP_OK)
+    {
+        printf("Wi-Fi credentials set. The device will attempt to connect.\n");
+    }
+    else
+    {
+        printf("Failed to set Wi-Fi credentials.\n");
+    }
+
+    return 0;
+}
+
+static void register_wifi_connect(void)
+{
+    wifi_connect_args.ssid = arg_str1(NULL, NULL, "<ssid>", "SSID of the network to connect to");
+    wifi_connect_args.password = arg_str0(NULL, NULL, "<password>", "Password of the network");
+    wifi_connect_args.end = arg_end(2);
+
+    const esp_console_cmd_t cmd = {.command = "wifi_connect",
+                                   .help = "Connect to a Wi-Fi network",
+                                   .hint = NULL,
+                                   .func = &wifi_connect_handler,
+                                   .argtable = &wifi_connect_args};
+    ESP_ERROR_CHECK(esp_console_cmd_register(&cmd));
+}
+
+/* 'wifi_status' command */
+static int wifi_status_handler(int argc, char** argv)
+{
+    wifi_ap_record_t ap_info;
+    esp_err_t err = wifi_get_current_ap_info(&ap_info);
+
+    if (err == ESP_OK)
+    {
+        printf("Connected to AP:\n");
+        printf("  SSID: %s\n", (char*)ap_info.ssid);
+        printf("  RSSI: %d\n", ap_info.rssi);
+
+        esp_netif_ip_info_t ip_info;
+        err = wifi_get_current_ip_info(&ip_info);
+
+        if (err == ESP_OK)
+        {
+            char ip_str[16];
+            esp_ip4addr_ntoa(&ip_info.ip, ip_str, sizeof(ip_str));
+            printf("  IP Address: %s\n", ip_str);
+
+            esp_ip4addr_ntoa(&ip_info.gw, ip_str, sizeof(ip_str));
+            printf("  Gateway: %s\n", ip_str);
+
+            esp_ip4addr_ntoa(&ip_info.netmask, ip_str, sizeof(ip_str));
+            printf("  Subnet Mask: %s\n", ip_str);
+        }
+        else
+        {
+            printf("  Could not get IP information: %s\n", esp_err_to_name(err));
+        }
+    }
+    else
+    {
+        printf("Not connected to any AP.\n");
+    }
+
+    return 0;
+}
+
+static void register_wifi_status(void)
+{
+    const esp_console_cmd_t cmd = {
+        .command = "wifi_status",
+        .help = "Get current Wi-Fi connection status and IP information",
+        .hint = NULL,
+        .func = &wifi_status_handler,
+    };
+    ESP_ERROR_CHECK(esp_console_cmd_register(&cmd));
+}
+
+esp_err_t initialize_dbg_console(void)
+{
+    esp_console_repl_t* repl = NULL;
+    esp_console_repl_config_t repl_config = ESP_CONSOLE_REPL_CONFIG_DEFAULT();
+
+    repl_config.prompt = "powermate >";
+    repl_config.max_cmdline_length = 512;
+
+    esp_console_dev_usb_serial_jtag_config_t hw_config = ESP_CONSOLE_DEV_USB_SERIAL_JTAG_CONFIG_DEFAULT();
+    ESP_ERROR_CHECK(esp_console_new_repl_usb_serial_jtag(&hw_config, &repl_config, &repl));
+
+    esp_console_register_help_command();
+    register_wifi_scan();
+    register_wifi_connect();
+    register_wifi_status();
+
+    printf("Debug console initialized.\n");
+
+    esp_console_start_repl(repl);
+
+    return ESP_OK;
+}

main/service/dbg_console.h

@@ -0,0 +1,13 @@
+#ifndef ODROID_POWER_MATE_DBG_CONSOLE_H
+#define ODROID_POWER_MATE_DBG_CONSOLE_H
+
+#include "esp_err.h"
+
+/**
+ * @brief Initialize the debug console.
+ *
+ * @return ESP_OK on success, or an error code on failure.
+ */
+esp_err_t initialize_dbg_console(void);
+
+#endif // ODROID_POWER_MATE_DBG_CONSOLE_H

main/service/monitor.c

@@ -2,134 +2,314 @@
 // Created by shinys on 25. 8. 18..
 //
 
-
 #include "monitor.h"
+#include <nconfig.h>
+#include <sys/time.h>
 #include <time.h>
-#include <stdlib.h>
-#include <string.h>
-#include "freertos/FreeRTOS.h"
+#include "climit.h"
 #include "esp_log.h"
-#include "esp_timer.h"
-#include "cJSON.h"
 #include "esp_netif.h"
+#include "esp_timer.h"
 #include "esp_wifi_types_generic.h"
-#include "ina226.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h" // Added for FreeRTOS tasks
+#include "ina3221.h"
+#include "pb.h"
+#include "pb_encode.h"
+#include "status.pb.h"
+#include "sw.h"
 #include "webserver.h"
 #include "wifi.h"
-#include "datalog.h"
 
-#define INA226_SDA CONFIG_GPIO_INA226_SDA
-#define INA226_SCL CONFIG_GPIO_INA226_SCL
+#define CHANNEL_VIN INA3221_CHANNEL_3
+#define CHANNEL_MAIN INA3221_CHANNEL_2
+#define CHANNEL_USB INA3221_CHANNEL_1
 
-ina226_t ina;
-i2c_master_bus_handle_t bus_handle;
-i2c_master_dev_handle_t dev_handle;
+#define PM_SDA CONFIG_I2C_GPIO_SDA
+#define PM_SCL CONFIG_I2C_GPIO_SCL
 
-// Timer callback function to read sensor data
-static void sensor_timer_callback(void *arg)
-{
-    // Generate random sensor data
-    float voltage = 0;
-    float current = 0;
-    float power = 0;
+#define PM_INT_CRITICAL CONFIG_GPIO_INA3221_INT_CRITICAL
+#define PM_EXPANDER_RST CONFIG_GPIO_EXPANDER_RESET
 
-    ina226_get_bus_voltage(&ina, &voltage);
-    ina226_get_power(&ina, &power);
-    ina226_get_current(&ina, &current);
+#define PB_BUFFER_SIZE 256
 
-    // Get system uptime
-    int64_t uptime_us = esp_timer_get_time();
-    uint32_t uptime_sec = (uint32_t)(uptime_us / 1000000);
-    uint32_t timestamp = (uint32_t)time(NULL);
-
-    datalog_add(timestamp, voltage, current, power);
-
-    // Create JSON object with sensor data
-    cJSON *root = cJSON_CreateObject();
-    cJSON_AddStringToObject(root, "type", "sensor_data");
-    cJSON_AddNumberToObject(root, "voltage", voltage);
-    cJSON_AddNumberToObject(root, "current", current);
-    cJSON_AddNumberToObject(root, "power", power);
-    cJSON_AddNumberToObject(root, "timestamp", timestamp);
-    cJSON_AddNumberToObject(root, "uptime_sec", uptime_sec);
-
-    // Push data to WebSocket clients
-    push_data_to_ws(root);
-}
-
-static void status_wifi_callback(void *arg)
-{
-    wifi_ap_record_t ap_info;
-    cJSON *root = cJSON_CreateObject();
-
-    if (wifi_get_current_ap_info(&ap_info) == ESP_OK) {
-        cJSON_AddStringToObject(root, "type", "wifi_status");
-        cJSON_AddBoolToObject(root, "connected", true);
-        cJSON_AddStringToObject(root, "ssid", (const char *)ap_info.ssid);
-        cJSON_AddNumberToObject(root, "rssi", ap_info.rssi);
-    } else {
-        cJSON_AddBoolToObject(root, "connected", false);
-    }
-
-    push_data_to_ws(root);
-}
-
-ina226_config_t ina_config = {
-    .i2c_port = I2C_NUM_0,
-    .i2c_addr = 0x40,
-    .timeout_ms = 100,
-    .averages = INA226_AVERAGES_16,
-    .bus_conv_time = INA226_BUS_CONV_TIME_1100_US,
-    .shunt_conv_time = INA226_SHUNT_CONV_TIME_1100_US,
-    .mode = INA226_MODE_SHUNT_BUS_CONT,
-    .r_shunt = 0.01f,
-    .max_current = 8
-};
-
-static void init_ina226()
-{
-    i2c_master_bus_config_t bus_config = {
-        .i2c_port = I2C_NUM_0,
-        .sda_io_num = (gpio_num_t) INA226_SDA,
-        .scl_io_num = (gpio_num_t) INA226_SCL,
-        .clk_source = I2C_CLK_SRC_DEFAULT,
-        .glitch_ignore_cnt = 7,
-        .flags.enable_internal_pullup = true,
-    };
-    ESP_ERROR_CHECK(i2c_new_master_bus(&bus_config, &bus_handle));
-
-    i2c_device_config_t dev_config = {
-        .dev_addr_length = I2C_ADDR_BIT_LEN_7,
-        .device_address = 0x40,
-        .scl_speed_hz = 400000,
-    };
-    ESP_ERROR_CHECK(i2c_master_bus_add_device(bus_handle, &dev_config, &dev_handle));
-
-    ESP_ERROR_CHECK(ina226_init(&ina, dev_handle, &ina_config));
-}
+static const char* TAG = "monitor";
 
 static esp_timer_handle_t sensor_timer;
 static esp_timer_handle_t wifi_status_timer;
+static esp_timer_handle_t long_press_timer;
+// static esp_timer_handle_t shutdown_load_sw; // No longer needed
+
+static TaskHandle_t shutdown_task_handle = NULL; // Global task handle
+
+ina3221_t ina3221 = {
+    .shunt = {10, 10, 10},
+    .mask.mask_register = INA3221_DEFAULT_MASK,
+    .i2c_dev = {0},
+    .config =
+        {
+            .mode = true, // mode selection
+            .esht = true, // shunt enable
+            .ebus = true, // bus enable
+            .ch1 = true, // channel 1 enable
+            .ch2 = true, // channel 2 enable
+            .ch3 = true, // channel 3 enable
+            .avg = INA3221_AVG_64, // 64 samples average
+            .vbus = INA3221_CT_2116, // 2ms by channel (bus)
+            .vsht = INA3221_CT_2116, // 2ms by channel (shunt)
+        },
+};
+
+static bool encode_string(pb_ostream_t* stream, const pb_field_t* field, void* const* arg)
+{
+    const char* str = (const char*)(*arg);
+    if (!str)
+    {
+        return true; // Nothing to encode
+    }
+    if (!pb_encode_tag_for_field(stream, field))
+    {
+        return false;
+    }
+    return pb_encode_string(stream, (uint8_t*)str, strlen(str));
+}
+
+static void send_pb_message(const pb_msgdesc_t* fields, const void* src_struct)
+{
+    uint8_t buffer[PB_BUFFER_SIZE];
+    pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
+
+    if (!pb_encode(&stream, fields, src_struct))
+    {
+        ESP_LOGE(TAG, "Failed to encode protobuf message: %s", PB_GET_ERROR(&stream));
+        return;
+    }
+
+    push_data_to_ws(buffer, stream.bytes_written);
+}
+
+static void sensor_timer_callback(void* arg)
+{
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    uint64_t timestamp_ms = (uint64_t)tv.tv_sec * 1000 + (uint64_t)tv.tv_usec / 1000;
+    uint64_t uptime_ms = (uint64_t)esp_timer_get_time() / 1000;
+
+    StatusMessage message = StatusMessage_init_zero;
+    message.which_payload = StatusMessage_sensor_data_tag;
+    SensorData* sensor_data = &message.payload.sensor_data;
+
+    sensor_data->has_usb = true;
+    sensor_data->has_main = true;
+    sensor_data->has_vin = true;
+
+    SensorChannelData* channels[] = {&sensor_data->usb, &sensor_data->main, &sensor_data->vin};
+
+    for (uint8_t i = 0; i < INA3221_BUS_NUMBER; i++)
+    {
+        float voltage, current, power;
+        ina3221_get_bus_voltage(&ina3221, i, &voltage);
+        ina3221_get_shunt_value(&ina3221, i, NULL, &current);
+
+        current /= 1000.0f; // mA to A
+        power = voltage * current;
+
+        // For protobuf
+        channels[i]->voltage = voltage;
+        channels[i]->current = current;
+        channels[i]->power = power;
+    }
+
+    // datalog_add(timestamp, channel_data_log);
+
+    sensor_data->timestamp_ms = timestamp_ms;
+    sensor_data->uptime_ms = uptime_ms;
+
+    send_pb_message(StatusMessage_fields, &message);
+}
+
+static void status_wifi_callback(void* arg)
+{
+    wifi_ap_record_t ap_info;
+    StatusMessage message = StatusMessage_init_zero;
+    message.which_payload = StatusMessage_wifi_status_tag;
+    WifiStatus* wifi_status = &message.payload.wifi_status;
+    char ip_str[16];
+    esp_netif_ip_info_t ip_info;
+
+    if (wifi_get_current_ap_info(&ap_info) == ESP_OK)
+    {
+        wifi_status->connected = true;
+        wifi_status->ssid.funcs.encode = &encode_string;
+        wifi_status->ssid.arg = (void*)ap_info.ssid;
+        wifi_status->rssi = ap_info.rssi;
+    }
+    else
+    {
+        wifi_status->connected = false;
+        wifi_status->ssid.arg = ""; // Empty string
+        wifi_status->rssi = 0;
+    }
+
+    if (wifi_get_current_ip_info(&ip_info) == ESP_OK)
+    {
+        esp_ip4addr_ntoa(&ip_info.ip, ip_str, sizeof(ip_str));
+        wifi_status->ip_address.funcs.encode = &encode_string;
+        wifi_status->ip_address.arg = ip_str;
+    }
+    else
+    {
+        wifi_status->ip_address.arg = ""; // Empty string
+    }
+
+    send_pb_message(StatusMessage_fields, &message);
+}
+
+// Placeholder for long press action
+static void handle_critical_long_press(void)
+{
+    ESP_LOGW(TAG, "Config reset triggered...");
+    reset_nconfig();
+}
+
+// Timer callback for long press detection
+static void long_press_timer_callback(void* arg)
+{
+    if (gpio_get_level(PM_INT_CRITICAL) == 0)
+    {
+        handle_critical_long_press();
+    }
+}
+
+// New FreeRTOS task for shutdown logic
+static void shutdown_load_sw_task(void* pvParameters)
+{
+    while (1)
+    {
+        // Wait indefinitely for a notification from the ISR
+        ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
+
+        ESP_LOGW(TAG, "critical interrupt triggered (via task)");
+        gpio_set_level(PM_EXPANDER_RST, 0);
+        vTaskDelay(100 / portTICK_PERIOD_MS);
+        gpio_set_level(PM_EXPANDER_RST, 1);
+        config_sw();
+
+        // Start a 5-second timer to check for long press
+        esp_timer_start_once(long_press_timer, 5000000);
+    }
+}
+
+static void IRAM_ATTR critical_isr_handler(void* arg)
+{
+    BaseType_t xHigherPriorityTaskWoken = pdFALSE;
+    if (gpio_get_level(PM_INT_CRITICAL) == 0) // Falling edge
+    {
+        if (shutdown_task_handle != NULL)
+        {
+            vTaskNotifyGiveFromISR(shutdown_task_handle, &xHigherPriorityTaskWoken);
+        }
+    }
+    else // Rising edge
+    {
+        // Stop the timer if the button is released
+        esp_timer_stop(long_press_timer);
+    }
+    portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
+}
+
+static void gpio_init()
+{
+    // critical int
+    gpio_set_intr_type(PM_INT_CRITICAL, GPIO_INTR_ANYEDGE);
+    gpio_set_direction(PM_INT_CRITICAL, GPIO_MODE_INPUT);
+    gpio_install_isr_service(0);
+    gpio_isr_handler_add(PM_INT_CRITICAL, critical_isr_handler, (void*)PM_INT_CRITICAL);
+
+    // rst expander
+    gpio_set_level(PM_EXPANDER_RST, 1);
+    gpio_set_direction(PM_EXPANDER_RST, GPIO_MODE_OUTPUT);
+}
+
+esp_err_t climit_set_vin(double value)
+{
+    float lim = (float)(value * 1000);
+    ESP_LOGI(TAG, "Setting VIN current limit to: %fmA", lim);
+    if (value > 0.0f)
+        return ina3221_set_critical_alert(&ina3221, CHANNEL_VIN, lim);
+    return ina3221_set_critical_alert(&ina3221, CHANNEL_VIN, (15.0f * 1000.0f));
+}
+
+esp_err_t climit_set_main(double value)
+{
+    float lim = (float)(value * 1000);
+    ESP_LOGI(TAG, "Setting MAIN current limit to: %fmA", lim);
+    if (value > 0.0f)
+        return ina3221_set_critical_alert(&ina3221, CHANNEL_MAIN, lim);
+    return ina3221_set_critical_alert(&ina3221, CHANNEL_VIN, (15.0f * 1000.0f));
+}
+
+esp_err_t climit_set_usb(double value)
+{
+    float lim = (float)(value * 1000);
+    ESP_LOGI(TAG, "Setting USB current limit to: %fmA", lim);
+    if (value > 0.0f)
+        return ina3221_set_critical_alert(&ina3221, CHANNEL_USB, lim);
+    return ina3221_set_critical_alert(&ina3221, CHANNEL_VIN, (15.0f * 1000.0f));
+}
 
 void init_status_monitor()
 {
-    init_ina226();
-    datalog_init();
+    gpio_init();
+    ESP_ERROR_CHECK(ina3221_init_desc(&ina3221, 0x40, 0, PM_SDA, PM_SCL));
 
-    // Timer configuration
-    const esp_timer_create_args_t sensor_timer_args = {
-            .callback = &sensor_timer_callback,
-            .name = "sensor_reading_timer" // Optional name for debugging
-    };
+    double lim;
+    char buf[10];
 
-    const esp_timer_create_args_t wifi_timer_args = {
-        .callback = &status_wifi_callback,
-        .name = "wifi_status_timer" // Optional name for debugging
-    };
+    nconfig_read(VIN_CURRENT_LIMIT, buf, sizeof(buf));
+    lim = atof(buf);
+    climit_set_vin(lim);
+
+    nconfig_read(MAIN_CURRENT_LIMIT, buf, sizeof(buf));
+    lim = atof(buf);
+    climit_set_main(lim);
+
+    nconfig_read(USB_CURRENT_LIMIT, buf, sizeof(buf));
+    lim = atof(buf);
+    climit_set_usb(lim);
+
+    const esp_timer_create_args_t sensor_timer_args = {.callback = &sensor_timer_callback,
+                                                       .name = "sensor_reading_timer"};
+    const esp_timer_create_args_t wifi_timer_args = {.callback = &status_wifi_callback, .name = "wifi_status_timer"};
+    const esp_timer_create_args_t long_press_timer_args = {.callback = &long_press_timer_callback,
+                                                           .name = "long_press_timer"};
 
     ESP_ERROR_CHECK(esp_timer_create(&sensor_timer_args, &sensor_timer));
     ESP_ERROR_CHECK(esp_timer_create(&wifi_timer_args, &wifi_status_timer));
+    ESP_ERROR_CHECK(esp_timer_create(&long_press_timer_args, &long_press_timer));
 
-    ESP_ERROR_CHECK(esp_timer_start_periodic(sensor_timer, 1000000)); // 1sec
-    ESP_ERROR_CHECK(esp_timer_start_periodic(wifi_status_timer, 1000000 * 5)); // 5s in microseconds
+    xTaskCreate(shutdown_load_sw_task, "shutdown_sw_task", configMINIMAL_STACK_SIZE * 3, NULL, 15,
+                &shutdown_task_handle);
+
+    nconfig_read(SENSOR_PERIOD_MS, buf, sizeof(buf));
+    ESP_ERROR_CHECK(esp_timer_start_periodic(sensor_timer, strtol(buf, NULL, 10) * 1000));
+    ESP_ERROR_CHECK(esp_timer_start_periodic(wifi_status_timer, 1000000 * 5));
 }
+
+esp_err_t update_sensor_period(int period)
+{
+    if (period < 500 || period > 10000) // 0.5 sec ~ 10 sec
+    {
+        return ESP_ERR_INVALID_ARG;
+    }
+
+    char buf[10];
+    sprintf(buf, "%d", period);
+    esp_err_t err = nconfig_write(SENSOR_PERIOD_MS, buf);
+    if (err != ESP_OK) {
+        return err;
+    }
+
+    esp_timer_stop(sensor_timer);
+    return esp_timer_start_periodic(sensor_timer, period * 1000);
+}

main/service/monitor.h

@@ -9,17 +9,17 @@
 
 #include "esp_http_server.h"
 
-// 버퍼에 저장할 데이터의 개수
 #define SENSOR_BUFFER_SIZE 100
 
-// 단일 센서 데이터를 저장하기 위한 구조체
-typedef struct {
+typedef struct
+{
     float voltage;
     float current;
     float power;
-    uint32_t timestamp; // 데이터를 읽은 시간 (부팅 후 ms)
+    uint32_t timestamp;
 } sensor_data_t;
 
 void init_status_monitor();
+esp_err_t update_sensor_period(int period);
 
-#endif //ODROID_REMOTE_HTTP_MONITOR_H
+#endif // ODROID_REMOTE_HTTP_MONITOR_H

main/service/setting.c

@@ -1,48 +1,82 @@
-#include "webserver.h"
+#include <stdlib.h>
+#include "auth.h"
 #include "cJSON.h"
+#include "climit.h"
 #include "esp_http_server.h"
 #include "esp_log.h"
-#include "nconfig.h"
-#include "wifi.h"
-#include "system.h"
 #include "esp_netif.h"
-#include "freertos/task.h"
+#include "esp_timer.h"
+#include "monitor.h"
+#include "nconfig.h"
+#include "webserver.h"
+#include "wifi.h"
 
-static const char *TAG = "webserver";
+static const char* TAG = "webserver";
 
-static esp_err_t setting_get_handler(httpd_req_t *req)
+static esp_err_t setting_get_handler(httpd_req_t* req)
 {
-    wifi_ap_record_t ap_info;
-    cJSON *root = cJSON_CreateObject();
+    esp_err_t err = api_auth_check(req);
+    if (err != ESP_OK)
+    {
+        return err;
+    }
 
-    char mode_buf[16];
-    if (nconfig_read(WIFI_MODE, mode_buf, sizeof(mode_buf)) == ESP_OK) {
-        cJSON_AddStringToObject(root, "mode", mode_buf);
-    } else {
+    wifi_ap_record_t ap_info;
+    cJSON* root = cJSON_CreateObject();
+
+    char buf[16];
+    if (nconfig_read(WIFI_MODE, buf, sizeof(buf)) == ESP_OK)
+    {
+        cJSON_AddStringToObject(root, "mode", buf);
+    }
+    else
+    {
         cJSON_AddStringToObject(root, "mode", "sta"); // Default to sta
     }
 
-    char net_type_buf[16];
-    if (nconfig_read(NETIF_TYPE, net_type_buf, sizeof(net_type_buf)) == ESP_OK) {
-        cJSON_AddStringToObject(root, "net_type", net_type_buf);
-    } else {
+    if (nconfig_read(NETIF_TYPE, buf, sizeof(buf)) == ESP_OK)
+    {
+        cJSON_AddStringToObject(root, "net_type", buf);
+    }
+    else
+    {
         cJSON_AddStringToObject(root, "net_type", "dhcp"); // Default to dhcp
     }
 
-    // Add baudrate to the response
-    char baud_buf[16];
-    if (nconfig_read(UART_BAUD_RATE, baud_buf, sizeof(baud_buf)) == ESP_OK) {
-        cJSON_AddStringToObject(root, "baudrate", baud_buf);
+    if (nconfig_read(UART_BAUD_RATE, buf, sizeof(buf)) == ESP_OK)
+    {
+        cJSON_AddStringToObject(root, "baudrate", buf);
     }
 
-    if (wifi_get_current_ap_info(&ap_info) == ESP_OK) {
+    if (nconfig_read(SENSOR_PERIOD_MS, buf, sizeof(buf)) == ESP_OK)
+    {
+        cJSON_AddStringToObject(root, "period", buf);
+    }
+
+    // Add current limits to the response
+    if (nconfig_read(VIN_CURRENT_LIMIT, buf, sizeof(buf)) == ESP_OK)
+    {
+        cJSON_AddNumberToObject(root, "vin_current_limit", atof(buf));
+    }
+    if (nconfig_read(MAIN_CURRENT_LIMIT, buf, sizeof(buf)) == ESP_OK)
+    {
+        cJSON_AddNumberToObject(root, "main_current_limit", atof(buf));
+    }
+    if (nconfig_read(USB_CURRENT_LIMIT, buf, sizeof(buf)) == ESP_OK)
+    {
+        cJSON_AddNumberToObject(root, "usb_current_limit", atof(buf));
+    }
+
+    if (wifi_get_current_ap_info(&ap_info) == ESP_OK)
+    {
         cJSON_AddBoolToObject(root, "connected", true);
-        cJSON_AddStringToObject(root, "ssid", (const char *)ap_info.ssid);
+        cJSON_AddStringToObject(root, "ssid", (const char*)ap_info.ssid);
         cJSON_AddNumberToObject(root, "rssi", ap_info.rssi);
 
         esp_netif_ip_info_t ip_info;
         cJSON* ip_obj = cJSON_CreateObject();
-        if (wifi_get_current_ip_info(&ip_info) == ESP_OK) {
+        if (wifi_get_current_ip_info(&ip_info) == ESP_OK)
+        {
             char ip_str[16];
             esp_ip4addr_ntoa(&ip_info.ip, ip_str, sizeof(ip_str));
             cJSON_AddStringToObject(ip_obj, "ip", ip_str);
@@ -54,21 +88,24 @@ static esp_err_t setting_get_handler(httpd_req_t *req)
 
         esp_netif_dns_info_t dns_info;
         char dns_str[16];
-        if (wifi_get_dns_info(ESP_NETIF_DNS_MAIN, &dns_info) == ESP_OK) {
+        if (wifi_get_dns_info(ESP_NETIF_DNS_MAIN, &dns_info) == ESP_OK)
+        {
             esp_ip4addr_ntoa(&dns_info.ip.u_addr.ip4, dns_str, sizeof(dns_str));
             cJSON_AddStringToObject(ip_obj, "dns1", dns_str);
         }
-        if (wifi_get_dns_info(ESP_NETIF_DNS_BACKUP, &dns_info) == ESP_OK) {
+        if (wifi_get_dns_info(ESP_NETIF_DNS_BACKUP, &dns_info) == ESP_OK)
+        {
             esp_ip4addr_ntoa(&dns_info.ip.u_addr.ip4, dns_str, sizeof(dns_str));
             cJSON_AddStringToObject(ip_obj, "dns2", dns_str);
         }
         cJSON_AddItemToObject(root, "ip", ip_obj);
-
-    } else {
+    }
+    else
+    {
         cJSON_AddBoolToObject(root, "connected", false);
     }
 
-    const char *json_string = cJSON_Print(root);
+    const char* json_string = cJSON_Print(root);
     httpd_resp_set_type(req, "application/json");
     httpd_resp_send(req, json_string, HTTPD_RESP_USE_STRLEN);
     cJSON_Delete(root);
@@ -77,18 +114,24 @@ static esp_err_t setting_get_handler(httpd_req_t *req)
     return ESP_OK;
 }
 
-static esp_err_t wifi_scan(httpd_req_t *req)
+static esp_err_t wifi_scan(httpd_req_t* req)
 {
-    wifi_ap_record_t *ap_records;
+    esp_err_t err = api_auth_check(req);
+    if (err != ESP_OK)
+    {
+        return err;
+    }
+
+    wifi_ap_record_t* ap_records;
     uint16_t count;
 
     wifi_scan_aps(&ap_records, &count);
 
-    cJSON *root = cJSON_CreateArray();
+    cJSON* root = cJSON_CreateArray();
     for (int i = 0; i < count; i++)
     {
-        cJSON *ap_obj = cJSON_CreateObject();
-        cJSON_AddStringToObject(ap_obj, "ssid", (const char *)ap_records[i].ssid);
+        cJSON* ap_obj = cJSON_CreateObject();
+        cJSON_AddStringToObject(ap_obj, "ssid", (const char*)ap_records[i].ssid);
         cJSON_AddNumberToObject(ap_obj, "rssi", ap_records[i].rssi);
         cJSON_AddStringToObject(ap_obj, "authmode", auth_mode_str(ap_records[i].authmode));
         cJSON_AddItemToArray(root, ap_obj);
@@ -98,7 +141,7 @@ static esp_err_t wifi_scan(httpd_req_t *req)
         free(ap_records);
 
 
-    const char *json_string = cJSON_Print(root);
+    const char* json_string = cJSON_Print(root);
     httpd_resp_set_type(req, "application/json");
     httpd_resp_send(req, json_string, HTTPD_RESP_USE_STRLEN);
     cJSON_Delete(root);
@@ -107,67 +150,96 @@ static esp_err_t wifi_scan(httpd_req_t *req)
     return ESP_OK;
 }
 
-static esp_err_t setting_post_handler(httpd_req_t *req)
+static esp_err_t setting_post_handler(httpd_req_t* req)
 {
+    esp_err_t err = api_auth_check(req);
+    if (err != ESP_OK)
+    {
+        return err;
+    }
+
     char buf[512];
     int received = httpd_req_recv(req, buf, sizeof(buf) - 1);
 
-    if (received <= 0) {
-        if (received == HTTPD_SOCK_ERR_TIMEOUT) httpd_resp_send_408(req);
+    if (received <= 0)
+    {
+        if (received == HTTPD_SOCK_ERR_TIMEOUT)
+            httpd_resp_send_408(req);
         return ESP_FAIL;
     }
     buf[received] = '\0';
 
-    cJSON *root = cJSON_Parse(buf);
-    if (root == NULL) {
+    cJSON* root = cJSON_Parse(buf);
+    if (root == NULL)
+    {
         httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid JSON");
         return ESP_FAIL;
     }
 
-    cJSON *mode_item = cJSON_GetObjectItem(root, "mode");
-    cJSON *net_type_item = cJSON_GetObjectItem(root, "net_type");
-    cJSON *ssid_item = cJSON_GetObjectItem(root, "ssid");
-    cJSON *baud_item = cJSON_GetObjectItem(root, "baudrate");
+    cJSON* mode_item = cJSON_GetObjectItem(root, "mode");
+    cJSON* net_type_item = cJSON_GetObjectItem(root, "net_type");
+    cJSON* ssid_item = cJSON_GetObjectItem(root, "ssid");
+    cJSON* baud_item = cJSON_GetObjectItem(root, "baudrate");
+    cJSON* period_item = cJSON_GetObjectItem(root, "period");
+    cJSON* vin_climit_item = cJSON_GetObjectItem(root, "vin_current_limit");
+    cJSON* main_climit_item = cJSON_GetObjectItem(root, "main_current_limit");
+    cJSON* usb_climit_item = cJSON_GetObjectItem(root, "usb_current_limit");
+    cJSON* new_username_item = cJSON_GetObjectItem(root, "new_username");
+    cJSON* new_password_item = cJSON_GetObjectItem(root, "new_password");
 
-    if (mode_item && cJSON_IsString(mode_item)) {
+    if (mode_item && cJSON_IsString(mode_item))
+    {
         const char* mode = mode_item->valuestring;
         ESP_LOGI(TAG, "Received mode switch request: %s", mode);
 
-        if (strcmp(mode, "sta") == 0 || strcmp(mode, "apsta") == 0) {
-            if (strcmp(mode, "apsta") == 0) {
-                cJSON *ap_ssid_item = cJSON_GetObjectItem(root, "ap_ssid");
-                cJSON *ap_pass_item = cJSON_GetObjectItem(root, "ap_password");
+        if (strcmp(mode, "sta") == 0 || strcmp(mode, "apsta") == 0)
+        {
+            if (strcmp(mode, "apsta") == 0)
+            {
+                cJSON* ap_ssid_item = cJSON_GetObjectItem(root, "ap_ssid");
+                cJSON* ap_pass_item = cJSON_GetObjectItem(root, "ap_password");
 
-                if (ap_ssid_item && cJSON_IsString(ap_ssid_item)) {
+                if (ap_ssid_item && cJSON_IsString(ap_ssid_item))
+                {
                     nconfig_write(AP_SSID, ap_ssid_item->valuestring);
-                } else {
+                }
+                else
+                {
                     httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "AP SSID required for APSTA mode");
                     cJSON_Delete(root);
                     return ESP_FAIL;
                 }
 
-                if (ap_pass_item && cJSON_IsString(ap_pass_item)) {
+                if (ap_pass_item && cJSON_IsString(ap_pass_item))
+                {
                     nconfig_write(AP_PASSWORD, ap_pass_item->valuestring);
-                } else {
+                }
+                else
+                {
                     nconfig_delete(AP_PASSWORD); // Open network
                 }
             }
 
             wifi_switch_mode(mode);
             httpd_resp_sendstr(req, "{\"status\":\"mode_switch_initiated\"}");
-        } else {
+        }
+        else
+        {
             httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid mode");
         }
-    } else if (net_type_item && cJSON_IsString(net_type_item)) {
+    }
+    else if (net_type_item && cJSON_IsString(net_type_item))
+    {
         const char* type = net_type_item->valuestring;
         ESP_LOGI(TAG, "Received network config: %s", type);
 
-        if (strcmp(type, "static") == 0) {
-            cJSON *ip_item = cJSON_GetObjectItem(root, "ip");
-            cJSON *gw_item = cJSON_GetObjectItem(root, "gateway");
-            cJSON *sn_item = cJSON_GetObjectItem(root, "subnet");
-            cJSON *d1_item = cJSON_GetObjectItem(root, "dns1");
-            cJSON *d2_item = cJSON_GetObjectItem(root, "dns2");
+        if (strcmp(type, "static") == 0)
+        {
+            cJSON* ip_item = cJSON_GetObjectItem(root, "ip");
+            cJSON* gw_item = cJSON_GetObjectItem(root, "gateway");
+            cJSON* sn_item = cJSON_GetObjectItem(root, "subnet");
+            cJSON* d1_item = cJSON_GetObjectItem(root, "dns1");
+            cJSON* d2_item = cJSON_GetObjectItem(root, "dns2");
 
             const char* ip = cJSON_IsString(ip_item) ? ip_item->valuestring : NULL;
             const char* gw = cJSON_IsString(gw_item) ? gw_item->valuestring : NULL;
@@ -175,45 +247,110 @@ static esp_err_t setting_post_handler(httpd_req_t *req)
             const char* d1 = cJSON_IsString(d1_item) ? d1_item->valuestring : NULL;
             const char* d2 = cJSON_IsString(d2_item) ? d2_item->valuestring : NULL;
 
-            if (ip && gw && sn && d1) {
+            if (ip && gw && sn && d1)
+            {
                 nconfig_write(NETIF_TYPE, "static");
                 nconfig_write(NETIF_IP, ip);
                 nconfig_write(NETIF_GATEWAY, gw);
                 nconfig_write(NETIF_SUBNET, sn);
                 nconfig_write(NETIF_DNS1, d1);
-                if (d2) nconfig_write(NETIF_DNS2, d2); else nconfig_delete(NETIF_DNS2);
+                if (d2)
+                    nconfig_write(NETIF_DNS2, d2);
+                else
+                    nconfig_delete(NETIF_DNS2);
 
                 wifi_use_static(ip, gw, sn, d1, d2);
                 httpd_resp_sendstr(req, "{\"status\":\"static_config_applied\"}");
-            } else {
+            }
+            else
+            {
                 httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing static IP fields");
             }
-        } else if (strcmp(type, "dhcp") == 0) {
+        }
+        else if (strcmp(type, "dhcp") == 0)
+        {
             nconfig_write(NETIF_TYPE, "dhcp");
             wifi_use_dhcp();
             httpd_resp_sendstr(req, "{\"status\":\"dhcp_config_applied\"}");
         }
-    } else if (ssid_item && cJSON_IsString(ssid_item)) {
-        cJSON *pass_item = cJSON_GetObjectItem(root, "password");
-        if (cJSON_IsString(pass_item)) {
-            nconfig_write(WIFI_SSID, ssid_item->valuestring);
-            nconfig_write(WIFI_PASSWORD, pass_item->valuestring);
-            nconfig_write(NETIF_TYPE, "dhcp"); // Default to DHCP on new connection
-
+    }
+    else if (ssid_item && cJSON_IsString(ssid_item))
+    {
+        cJSON* pass_item = cJSON_GetObjectItem(root, "password");
+        if (cJSON_IsString(pass_item))
+        {
             httpd_resp_sendstr(req, "{\"status\":\"connection_initiated\"}");
-            wifi_disconnect();
-            vTaskDelay(pdMS_TO_TICKS(500));
-            wifi_connect();
-        } else {
+
+            wifi_sta_set_ap(ssid_item->valuestring, pass_item->valuestring);
+        }
+        else
+        {
             httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Password required");
         }
-    } else if (baud_item && cJSON_IsString(baud_item)) {
+    }
+    else if (baud_item && cJSON_IsString(baud_item))
+    {
         const char* baudrate = baud_item->valuestring;
         ESP_LOGI(TAG, "Received baudrate set request: %s", baudrate);
         nconfig_write(UART_BAUD_RATE, baudrate);
         change_baud_rate(strtol(baudrate, NULL, 10));
         httpd_resp_sendstr(req, "{\"status\":\"baudrate_updated\"}");
-    } else {
+    }
+    else if (period_item && cJSON_IsString(period_item))
+    {
+        const char* period_str = period_item->valuestring;
+        ESP_LOGI(TAG, "Received period set request: %s", period_str);
+        update_sensor_period(strtol(period_str, NULL, 10));
+        httpd_resp_sendstr(req, "{\"status\":\"period_updated\"}");
+    }
+    else if (vin_climit_item || main_climit_item || usb_climit_item)
+    {
+        char num_buf[10];
+        if (vin_climit_item && cJSON_IsNumber(vin_climit_item))
+        {
+            double val = vin_climit_item->valuedouble;
+            if (val >= 0.0 && val <= VIN_CURRENT_LIMIT_MAX)
+            {
+                snprintf(num_buf, sizeof(num_buf), "%.2f", val);
+                nconfig_write(VIN_CURRENT_LIMIT, num_buf);
+                climit_set_vin(val);
+            }
+        }
+        if (main_climit_item && cJSON_IsNumber(main_climit_item))
+        {
+            double val = main_climit_item->valuedouble;
+            if (val >= 0.0 && val <= MAIN_CURRENT_LIMIT_MAX)
+            {
+                snprintf(num_buf, sizeof(num_buf), "%.2f", val);
+                nconfig_write(MAIN_CURRENT_LIMIT, num_buf);
+                climit_set_main(val);
+            }
+        }
+        if (usb_climit_item && cJSON_IsNumber(usb_climit_item))
+        {
+            double val = usb_climit_item->valuedouble;
+            if (val >= 0.0 && val <= USB_CURRENT_LIMIT_MAX)
+            {
+                snprintf(num_buf, sizeof(num_buf), "%.2f", val);
+                nconfig_write(USB_CURRENT_LIMIT, num_buf);
+                climit_set_usb(val);
+            }
+        }
+        httpd_resp_sendstr(req, "{\"status\":\"current_limit_updated\"}");
+    }
+    else if (new_username_item && cJSON_IsString(new_username_item) && new_password_item &&
+             cJSON_IsString(new_password_item))
+    {
+        const char* new_username = new_username_item->valuestring;
+        const char* new_password = new_password_item->valuestring;
+
+        nconfig_write(PAGE_USERNAME, new_username);
+        nconfig_write(PAGE_PASSWORD, new_password);
+        ESP_LOGI(TAG, "Username and password updated successfully.");
+        httpd_resp_sendstr(req, "{\"status\":\"user_credentials_updated\"}");
+    }
+    else
+    {
         httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid payload");
     }
 
@@ -223,27 +360,12 @@ static esp_err_t setting_post_handler(httpd_req_t *req)
 
 void register_wifi_endpoint(httpd_handle_t server)
 {
-    httpd_uri_t status = {
-        .uri       = "/api/setting",
-        .method    = HTTP_GET,
-        .handler   = setting_get_handler,
-        .user_ctx  = NULL
-    };
+    httpd_uri_t status = {.uri = "/api/setting", .method = HTTP_GET, .handler = setting_get_handler, .user_ctx = NULL};
     httpd_register_uri_handler(server, &status);
 
-    httpd_uri_t set = {
-        .uri       = "/api/setting",
-        .method    = HTTP_POST,
-        .handler   = setting_post_handler,
-        .user_ctx  = NULL
-    };
+    httpd_uri_t set = {.uri = "/api/setting", .method = HTTP_POST, .handler = setting_post_handler, .user_ctx = NULL};
     httpd_register_uri_handler(server, &set);
 
-    httpd_uri_t scan = {
-        .uri       = "/api/wifi/scan",
-        .method    = HTTP_GET,
-        .handler   = wifi_scan,
-        .user_ctx  = NULL
-    };
+    httpd_uri_t scan = {.uri = "/api/wifi/scan", .method = HTTP_GET, .handler = wifi_scan, .user_ctx = NULL};
     httpd_register_uri_handler(server, &scan);
 }

main/service/sw.c

@@ -0,0 +1,183 @@
+//
+// Created by vl011 on 2025-08-28.
+//
+
+#include "sw.h"
+
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <ina3221.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "driver/gpio.h"
+#include "esp_log.h"
+#include "esp_timer.h"
+#include "pb.h"
+#include "pb_encode.h"
+#include "pca9557.h"
+#include "status.pb.h"
+#include "webserver.h"
+
+#define I2C_PORT 0
+
+#define GPIO_SDA CONFIG_I2C_GPIO_SDA
+#define GPIO_SCL CONFIG_I2C_GPIO_SCL
+#define GPIO_MAIN CONFIG_EXPANDER_GPIO_SW_12V
+#define GPIO_USB CONFIG_EXPANDER_GPIO_SW_5V
+#define GPIO_PWR CONFIG_EXPANDER_GPIO_TRIGGER_POWER
+#define GPIO_RST CONFIG_EXPANDER_GPIO_TRIGGER_RESET
+
+#define POWER_DELAY (CONFIG_TRIGGER_POWER_DELAY_MS * 1000)
+#define RESET_DELAY (CONFIG_TRIGGER_RESET_DELAY_MS * 1000)
+
+#define PB_BUFFER_SIZE 256
+
+static const char* TAG = "control";
+
+static bool load_switch_12v_status = false;
+static bool load_switch_5v_status = false;
+
+static SemaphoreHandle_t expander_mutex;
+#define MUTEX_TIMEOUT (pdMS_TO_TICKS(100))
+
+static i2c_dev_t pca = {0};
+
+static esp_timer_handle_t power_trigger_timer;
+static esp_timer_handle_t reset_trigger_timer;
+
+static void send_sw_status_message()
+{
+    StatusMessage message = StatusMessage_init_zero;
+    message.which_payload = StatusMessage_sw_status_tag;
+    LoadSwStatus* sw_status = &message.payload.sw_status;
+
+    sw_status->main = load_switch_12v_status;
+    sw_status->usb = load_switch_5v_status;
+
+    uint8_t buffer[PB_BUFFER_SIZE];
+    pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
+
+    if (!pb_encode(&stream, StatusMessage_fields, &message))
+    {
+        ESP_LOGE(TAG, "Failed to encode protobuf message: %s", PB_GET_ERROR(&stream));
+        return;
+    }
+
+    push_data_to_ws(buffer, stream.bytes_written);
+}
+
+
+static void trigger_off_callback(void* arg)
+{
+    if (xSemaphoreTake(expander_mutex, MUTEX_TIMEOUT) == pdFALSE)
+    {
+        ESP_LOGW(TAG, "Control error");
+        return;
+    }
+
+    uint32_t gpio_pin = (int)arg;
+    pca9557_set_level(&pca, gpio_pin, 1);
+    xSemaphoreGive(expander_mutex);
+}
+
+void config_sw()
+{
+    ESP_ERROR_CHECK(pca9557_set_mode(&pca, GPIO_MAIN, PCA9557_MODE_OUTPUT));
+    ESP_ERROR_CHECK(pca9557_set_mode(&pca, GPIO_USB, PCA9557_MODE_OUTPUT));
+    ESP_ERROR_CHECK(pca9557_set_mode(&pca, GPIO_PWR, PCA9557_MODE_OUTPUT));
+    ESP_ERROR_CHECK(pca9557_set_mode(&pca, GPIO_RST, PCA9557_MODE_OUTPUT));
+
+    ESP_ERROR_CHECK(pca9557_set_level(&pca, GPIO_PWR, 1));
+    ESP_ERROR_CHECK(pca9557_set_level(&pca, GPIO_RST, 1));
+
+    uint32_t val = 0;
+    ESP_ERROR_CHECK(pca9557_get_level(&pca, CONFIG_EXPANDER_GPIO_SW_12V, &val));
+    load_switch_12v_status = val != 0 ? true : false;
+    ESP_ERROR_CHECK(pca9557_get_level(&pca, CONFIG_EXPANDER_GPIO_SW_5V, &val));
+    load_switch_5v_status = val != 0 ? true : false;
+
+    send_sw_status_message();
+}
+
+void init_sw()
+{
+    ESP_ERROR_CHECK(pca9557_init_desc(&pca, 0x18, I2C_PORT, GPIO_SDA, GPIO_SCL));
+
+    config_sw();
+
+    const esp_timer_create_args_t power_timer_args = {
+        .callback = &trigger_off_callback, .arg = (void*)GPIO_PWR, .name = "power_trigger_off"};
+    ESP_ERROR_CHECK(esp_timer_create(&power_timer_args, &power_trigger_timer));
+
+    const esp_timer_create_args_t reset_timer_args = {
+        .callback = &trigger_off_callback, .arg = (void*)GPIO_RST, .name = "power_trigger_off"};
+    ESP_ERROR_CHECK(esp_timer_create(&reset_timer_args, &reset_trigger_timer));
+
+    expander_mutex = xSemaphoreCreateMutex();
+}
+
+void trig_power()
+{
+    ESP_LOGI(TAG, "Trig power");
+    if (xSemaphoreTake(expander_mutex, MUTEX_TIMEOUT) == pdFALSE)
+    {
+        ESP_LOGW(TAG, "Control error");
+        return;
+    }
+    pca9557_set_level(&pca, GPIO_PWR, 0);
+    xSemaphoreGive(expander_mutex);
+    esp_timer_stop(power_trigger_timer);
+    esp_timer_start_once(power_trigger_timer, POWER_DELAY);
+}
+
+void trig_reset()
+{
+    ESP_LOGI(TAG, "Trig reset");
+    if (xSemaphoreTake(expander_mutex, MUTEX_TIMEOUT) == pdFALSE)
+    {
+        ESP_LOGW(TAG, "Control error");
+        return;
+    }
+    pca9557_set_level(&pca, GPIO_RST, 0);
+    xSemaphoreGive(expander_mutex);
+    esp_timer_stop(reset_trigger_timer);
+    esp_timer_start_once(reset_trigger_timer, RESET_DELAY);
+}
+
+void set_main_load_switch(bool on)
+{
+    ESP_LOGI(TAG, "Set main load switch to %s", on ? "on" : "off");
+    if (load_switch_12v_status == on)
+        return;
+    if (xSemaphoreTake(expander_mutex, MUTEX_TIMEOUT) == pdFALSE)
+    {
+        ESP_LOGW(TAG, "Control error");
+        return;
+    }
+    pca9557_set_level(&pca, GPIO_MAIN, on);
+    load_switch_12v_status = on;
+    xSemaphoreGive(expander_mutex);
+    send_sw_status_message();
+}
+
+void set_usb_load_switch(bool on)
+{
+    ESP_LOGI(TAG, "Set usb load switch to %s", on ? "on" : "off");
+    if (load_switch_5v_status == on)
+        return;
+    if (xSemaphoreTake(expander_mutex, MUTEX_TIMEOUT) == pdFALSE)
+    {
+        ESP_LOGW(TAG, "Control error");
+        return;
+    }
+    pca9557_set_level(&pca, GPIO_USB, on);
+    load_switch_5v_status = on;
+    xSemaphoreGive(expander_mutex);
+    send_sw_status_message();
+}
+
+bool get_main_load_switch() { return load_switch_12v_status; }
+
+bool get_usb_load_switch() { return load_switch_5v_status; }

main/service/sw.h

@@ -0,0 +1,18 @@
+//
+// Created by vl011 on 2025-08-28.
+//
+
+#ifndef ODROID_POWER_MATE_SW_H
+#define ODROID_POWER_MATE_SW_H
+#include <stdbool.h>
+
+void init_sw();
+void config_sw();
+void trig_power();
+void trig_reset();
+void set_main_load_switch(bool on);
+void set_usb_load_switch(bool on);
+bool get_main_load_switch();
+bool get_usb_load_switch();
+
+#endif // ODROID_POWER_MATE_SW_H

main/service/system.c

@@ -0,0 +1,108 @@
+//
+// Created by shinys on 25. 8. 5.
+//
+
+#include <system.h>
+
+#include <esp_log.h>
+#include <esp_timer.h>
+#include <string.h>
+#include "auth.h"
+#include "esp_http_server.h"
+#include "esp_system.h"
+
+static const char* TAG = "odroid";
+
+static esp_timer_handle_t reboot_timer_handle = NULL;
+
+static void reboot_timer_callback(void* arg)
+{
+    ESP_LOGI(TAG, "Rebooting now...");
+    esp_restart();
+}
+
+void start_reboot_timer(int sec)
+{
+    if (reboot_timer_handle != NULL)
+    {
+        ESP_LOGW(TAG, "The reboot timer is already running.");
+        return;
+    }
+
+    ESP_LOGI(TAG, "Device will reboot in %d seconds.", sec);
+
+    const esp_timer_create_args_t reboot_timer_args = {.callback = &reboot_timer_callback, .name = "reboot-timer"};
+
+    if (esp_timer_create(&reboot_timer_args, &reboot_timer_handle) != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to create reboot timer.");
+        reboot_timer_handle = NULL;
+        return;
+    }
+
+    if (esp_timer_start_once(reboot_timer_handle, (uint64_t)sec * 1000000) != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to start reboot timer.");
+        esp_timer_delete(reboot_timer_handle);
+        reboot_timer_handle = NULL;
+        return;
+    }
+}
+
+static esp_err_t reboot_post_handler(httpd_req_t* req)
+{
+    esp_err_t err = api_auth_check(req);
+    if (err != ESP_OK)
+    {
+        return err;
+    }
+
+    httpd_resp_set_type(req, "application/json");
+    const char* resp_str = "{\"status\": \"reboot timer started\"}";
+    httpd_resp_send(req, resp_str, strlen(resp_str));
+
+    start_reboot_timer(3);
+
+    return ESP_OK;
+}
+
+void stop_reboot_timer()
+{
+    if (reboot_timer_handle == NULL)
+    {
+        return;
+    }
+    esp_timer_stop(reboot_timer_handle);
+    esp_timer_delete(reboot_timer_handle);
+    reboot_timer_handle = NULL;
+    ESP_LOGI(TAG, "Reboot timer stopped.");
+}
+
+void register_reboot_endpoint(httpd_handle_t server)
+{
+    httpd_uri_t post_uri = {
+        .uri = "/api/reboot", .method = HTTP_POST, .handler = reboot_post_handler, .user_ctx = NULL};
+    httpd_register_uri_handler(server, &post_uri);
+}
+
+static esp_err_t version_get_handler(httpd_req_t* req)
+{
+    esp_err_t err = api_auth_check(req);
+    if (err != ESP_OK)
+    {
+        return err;
+    }
+
+    httpd_resp_set_type(req, "application/json");
+    char buf[100];
+    sprintf(buf, "{\"version\": \"%s-%s\"}", VERSION_TAG, VERSION_HASH);
+    httpd_resp_send(req, buf, strlen(buf));
+    return ESP_OK;
+}
+
+void register_version_endpoint(httpd_handle_t server)
+{
+    httpd_uri_t post_uri = {
+        .uri = "/api/version", .method = HTTP_GET, .handler = version_get_handler, .user_ctx = NULL};
+    httpd_register_uri_handler(server, &post_uri);
+}

main/service/webserver.c

@@ -1,92 +1,199 @@
 #include "webserver.h"
 #include <stdio.h>
 #include <string.h>
+#include "auth.h"
+#include "cJSON.h"
+#include "dbg_console.h"
+#include "esp_http_server.h"
+#include "esp_log.h"
+#include "esp_wifi.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
-#include "esp_wifi.h"
-#include "esp_log.h"
-#include "esp_http_server.h"
-#include "nconfig.h"
-#include "monitor.h"
-#include "datalog.h"
-
 #include "lwip/err.h"
 #include "lwip/sys.h"
+#include "monitor.h"
+#include "nconfig.h"
+#include "system.h"
 
-static const char *TAG = "WEBSERVER";
+static const char* TAG = "WEBSERVER";
 
-static esp_err_t index_handler(httpd_req_t *req) {
+static esp_err_t index_handler(httpd_req_t* req)
+{
     extern const unsigned char index_html_start[] asm("_binary_index_html_gz_start");
     extern const unsigned char index_html_end[] asm("_binary_index_html_gz_end");
     const size_t index_html_size = (index_html_end - index_html_start);
 
     httpd_resp_set_hdr(req, "Content-Encoding", "gzip");
+    httpd_resp_set_hdr(req, "Cache-Control", "max-age=3600");
     httpd_resp_set_type(req, "text/html");
-    httpd_resp_send(req, (const char *)index_html_start, index_html_size);
 
-    return ESP_OK;
-}
-
-static esp_err_t datalog_download_handler(httpd_req_t *req)
-{
-    const char *filepath = datalog_get_path();
-    FILE *f = fopen(filepath, "r");
-    if (f == NULL) {
-        ESP_LOGE(TAG, "Failed to open datalog file for reading");
-        httpd_resp_send_404(req);
-        return ESP_FAIL;
-    }
-
-    httpd_resp_set_type(req, "text/csv");
-    httpd_resp_set_hdr(req, "Content-Disposition", "attachment; filename=\"datalog.csv\"");
-
-    char buffer[1024];
-    size_t bytes_read;
-    while ((bytes_read = fread(buffer, 1, sizeof(buffer), f)) > 0) {
-        if (httpd_resp_send_chunk(req, buffer, bytes_read) != ESP_OK) {
+    size_t remaining = index_html_size;
+    const char* ptr = (const char*)index_html_start;
+    while (remaining > 0)
+    {
+        size_t to_send = remaining < 2048 ? remaining : 2048;
+        if (httpd_resp_send_chunk(req, ptr, to_send) != ESP_OK)
+        {
             ESP_LOGE(TAG, "File sending failed!");
-            fclose(f);
             httpd_resp_send_chunk(req, NULL, 0);
             httpd_resp_send_500(req);
             return ESP_FAIL;
         }
+        ptr += to_send;
+        remaining -= to_send;
     }
 
-    fclose(f);
     httpd_resp_send_chunk(req, NULL, 0);
     return ESP_OK;
 }
 
-// HTTP 서버 시작
-void start_webserver(void) {
+static esp_err_t login_handler(httpd_req_t* req)
+{
+    char content[100]; // Adjust size as needed for username/password
+    int ret = httpd_req_recv(req, content, sizeof(content) - 1); // -1 for null terminator
+    if (ret <= 0)
+    { // 0 means connection closed, < 0 means error
+        if (ret == HTTPD_SOCK_ERR_TIMEOUT)
+        {
+            httpd_resp_send_408(req);
+        }
+        return ESP_FAIL;
+    }
+    content[ret] = '\0'; // Null-terminate the received data
+
+    ESP_LOGI(TAG, "Received login request: %s", content);
+
+    cJSON* root = cJSON_Parse(content);
+    if (root == NULL)
+    {
+        httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid JSON");
+        return ESP_FAIL;
+    }
+
+    cJSON* username_json = cJSON_GetObjectItemCaseSensitive(root, "username");
+    cJSON* password_json = cJSON_GetObjectItemCaseSensitive(root, "password");
+
+    if (!cJSON_IsString(username_json) || (username_json->valuestring == NULL) || !cJSON_IsString(password_json) ||
+        (password_json->valuestring == NULL))
+    {
+        cJSON_Delete(root);
+        httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing username or password");
+        return ESP_FAIL;
+    }
+
+    const char* received_username = username_json->valuestring;
+    const char* received_password = password_json->valuestring;
+
+    // Get stored username and password from nconfig
+    size_t stored_username_len = 0;
+    size_t stored_password_len = 0;
+    char* stored_username = NULL;
+    char* stored_password = NULL;
+    bool credentials_match = false;
+
+    if (nconfig_get_str_len(PAGE_USERNAME, &stored_username_len) == ESP_OK && stored_username_len > 1)
+    {
+        stored_username = (char*)malloc(stored_username_len);
+        if (stored_username)
+        {
+            if (nconfig_read(PAGE_USERNAME, stored_username, stored_username_len) != ESP_OK)
+            {
+                ESP_LOGE(TAG, "Failed to read stored username from nconfig");
+                free(stored_username);
+                stored_username = NULL;
+            }
+        }
+    }
+
+    if (nconfig_get_str_len(PAGE_PASSWORD, &stored_password_len) == ESP_OK && stored_password_len > 1)
+    {
+        stored_password = (char*)malloc(stored_password_len);
+        if (stored_password)
+        {
+            if (nconfig_read(PAGE_PASSWORD, stored_password, stored_password_len) != ESP_OK)
+            {
+                ESP_LOGE(TAG, "Failed to read stored password from nconfig");
+                free(stored_password);
+                stored_password = NULL;
+            }
+        }
+    }
+
+    if (stored_username && stored_password)
+    {
+        if (strcmp(received_username, stored_username) == 0 && strcmp(received_password, stored_password) == 0)
+        {
+            credentials_match = true;
+        }
+    }
+
+    if (stored_username)
+        free(stored_username);
+    if (stored_password)
+        free(stored_password);
+
+    if (credentials_match)
+    {
+        char* token = auth_generate_token();
+        if (token)
+        {
+            cJSON* response_root = cJSON_CreateObject();
+            cJSON_AddStringToObject(response_root, "token", token);
+            char* json_response = cJSON_Print(response_root);
+
+            httpd_resp_set_type(req, "application/json");
+            httpd_resp_sendstr(req, json_response);
+
+            free(token); // Free the token generated by auth_generate_token
+            free(json_response);
+            cJSON_Delete(response_root);
+        }
+        else
+        {
+            httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Failed to generate token");
+        }
+    }
+    else
+    {
+        httpd_resp_send_err(req, HTTPD_401_UNAUTHORIZED, "Invalid credentials");
+    }
+
+    cJSON_Delete(root);
+    return ESP_OK;
+}
+
+
+void start_webserver(void)
+{
+    auth_init();
+
     httpd_handle_t server = NULL;
     httpd_config_t config = HTTPD_DEFAULT_CONFIG();
     config.stack_size = 1024 * 8;
     config.max_uri_handlers = 10;
+    config.task_priority = 12;
+    config.max_open_sockets = 7;
 
-    if (httpd_start(&server, &config) != ESP_OK) {
-        return ;
+    if (httpd_start(&server, &config) != ESP_OK)
+    {
+        return;
     }
 
     // Index page
-    httpd_uri_t index = {
-        .uri       = "/",
-        .method    = HTTP_GET,
-        .handler   = index_handler,
-        .user_ctx  = NULL
-    };
+    httpd_uri_t index = {.uri = "/", .method = HTTP_GET, .handler = index_handler, .user_ctx = NULL};
     httpd_register_uri_handler(server, &index);
 
-    httpd_uri_t datalog_uri = {
-        .uri       = "/datalog.csv",
-        .method    = HTTP_GET,
-        .handler   = datalog_download_handler,
-        .user_ctx  = NULL
-    };
-    httpd_register_uri_handler(server, &datalog_uri);
+    // Login endpoint
+    httpd_uri_t login = {.uri = "/login", .method = HTTP_POST, .handler = login_handler, .user_ctx = NULL};
+    httpd_register_uri_handler(server, &login);
 
     register_wifi_endpoint(server);
     register_ws_endpoint(server);
     register_control_endpoint(server);
+    register_reboot_endpoint(server);
+    register_version_endpoint(server);
+
     init_status_monitor();
+
+    initialize_dbg_console();
 }

main/service/webserver.h

@@ -4,14 +4,17 @@
 
 #ifndef ODROID_REMOTE_HTTP_WEBSERVER_H
 #define ODROID_REMOTE_HTTP_WEBSERVER_H
-#include "cJSON.h"
+
+#include <stddef.h>
+#include <stdint.h>
 #include "esp_http_server.h"
-#include "system.h"
 
 void register_wifi_endpoint(httpd_handle_t server);
 void register_ws_endpoint(httpd_handle_t server);
 void register_control_endpoint(httpd_handle_t server);
-void push_data_to_ws(cJSON *data);
+void push_data_to_ws(const uint8_t* data, size_t len);
+void register_reboot_endpoint(httpd_handle_t server);
 esp_err_t change_baud_rate(int baud_rate);
+void register_version_endpoint(httpd_handle_t server);
 
-#endif //ODROID_REMOTE_HTTP_WEBSERVER_H
+#endif // ODROID_REMOTE_HTTP_WEBSERVER_H

main/service/ws.c

@@ -2,28 +2,31 @@
 // Created by shinys on 25. 8. 18..
 //
 
-#include "cJSON.h"
-#include "webserver.h"
+#include "auth.h"
+#include "driver/uart.h"
 #include "esp_err.h"
 #include "esp_http_server.h"
 #include "esp_log.h"
-#include "nconfig.h"
-#include "driver/uart.h"
+#include "freertos/FreeRTOS.h"
 #include "freertos/semphr.h"
+#include "nconfig.h"
+#include "pb.h"
+#include "pb_encode.h"
+#include "status.pb.h"
+#include "string.h" // Added for strlen and strncmp
+#include "webserver.h"
 
 #define UART_NUM UART_NUM_1
 #define BUF_SIZE (2048)
 #define UART_TX_PIN CONFIG_GPIO_UART_TX
 #define UART_RX_PIN CONFIG_GPIO_UART_RX
-#define CHUNK_SIZE (1024)
+#define CHUNK_SIZE (2048)
+#define PB_UART_BUFFER_SIZE (CHUNK_SIZE + 64)
 
-static const char *TAG = "ws-uart";
+static const char* TAG = "ws-uart";
 
-static int client_fd = -1;
-static SemaphoreHandle_t client_fd_mutex;
-
-// Unified message structure for the websocket queue
-enum ws_message_type {
+enum ws_message_type
+{
     WS_MSG_STATUS,
     WS_MSG_UART
 };
@@ -31,237 +34,272 @@ enum ws_message_type {
 struct ws_message
 {
     enum ws_message_type type;
-    union {
-        struct {
-            cJSON *data;
-        } status;
-        struct {
-            uint8_t *data;
-            size_t len;
-        } uart;
-    } content;
+    uint8_t* data;
+    size_t len;
 };
 
-static QueueHandle_t ws_queue;
+struct bytes_arg
+{
+    const void* data;
+    size_t len;
+};
 
-// Unified task to send data from the queue to the websocket client
-static void unified_ws_sender_task(void *arg)
+#define MAX_CLIENT 7
+static QueueHandle_t ws_queue;
+static QueueHandle_t uart_event_queue;
+static int client_fds[MAX_CLIENT];
+
+static bool encode_bytes_callback(pb_ostream_t* stream, const pb_field_t* field, void* const* arg)
+{
+    struct bytes_arg* br = (struct bytes_arg*)(*arg);
+    if (!pb_encode_tag_for_field(stream, field))
+    {
+        return false;
+    }
+    return pb_encode_string(stream, (uint8_t*)br->data, br->len);
+}
+
+static void unified_ws_sender_task(void* arg)
 {
     httpd_handle_t server = (httpd_handle_t)arg;
     struct ws_message msg;
-    const TickType_t PING_INTERVAL = pdMS_TO_TICKS(5000);
 
-    while (1) {
-        if (xQueueReceive(ws_queue, &msg, PING_INTERVAL)) {
-            xSemaphoreTake(client_fd_mutex, portMAX_DELAY);
-            int fd = client_fd;
+    while (1)
+    {
+        if (xQueueReceive(ws_queue, &msg, portMAX_DELAY))
+        {
+            size_t clients = MAX_CLIENT;
+            if (httpd_get_client_list(server, &clients, client_fds) != ESP_OK)
+            {
+                free(msg.data);
+                continue;
+            }
 
-            if (fd <= 0) {
-                xSemaphoreGive(client_fd_mutex);
-                // Free memory if client is not connected
-                if (msg.type == WS_MSG_STATUS) {
-                    cJSON_Delete(msg.content.status.data);
-                } else {
-                    free(msg.content.uart.data);
-                }
+            if (clients == 0)
+            {
+                free(msg.data);
                 continue;
             }
 
             httpd_ws_frame_t ws_pkt = {0};
-            esp_err_t err = ESP_FAIL;
+            ws_pkt.payload = msg.data;
+            ws_pkt.len = msg.len;
+            ws_pkt.type = HTTPD_WS_TYPE_BINARY;
 
-            if (msg.type == WS_MSG_STATUS) {
-                char *json_string = cJSON_Print(msg.content.status.data);
-                cJSON_Delete(msg.content.status.data);
-
-                ws_pkt.payload = (uint8_t *)json_string;
-                ws_pkt.len = strlen(json_string);
-                ws_pkt.type = HTTPD_WS_TYPE_TEXT;
-                err = httpd_ws_send_frame_async(server, fd, &ws_pkt);
-                free(json_string);
-
-            } else { // WS_MSG_UART
-                ws_pkt.payload = msg.content.uart.data;
-                ws_pkt.len = msg.content.uart.len;
-                ws_pkt.type = HTTPD_WS_TYPE_BINARY;
-                err = httpd_ws_send_frame_async(server, fd, &ws_pkt);
-                free(msg.content.uart.data);
-            }
-
-            if (err != ESP_OK) {
-                ESP_LOGW(TAG, "unified_ws_sender_task: async send failed for fd %d, error: %s", fd, esp_err_to_name(err));
-                client_fd = -1;
-            }
-
-            xSemaphoreGive(client_fd_mutex);
-
-        } else {
-            // Queue receive timed out, send a PING to keep connection alive
-            xSemaphoreTake(client_fd_mutex, portMAX_DELAY);
-            int fd = client_fd;
-            if (fd > 0) {
-                httpd_ws_frame_t ping_pkt = {0};
-                ping_pkt.type = HTTPD_WS_TYPE_PING;
-                ping_pkt.final = true;
-                esp_err_t err = httpd_ws_send_frame_async(server, fd, &ping_pkt);
-                if (err != ESP_OK) {
-                    ESP_LOGW(TAG, "Failed to send PING frame, closing connection for fd %d, error: %s", fd, esp_err_to_name(err));
-                    client_fd = -1;
-                }
-            }
-            xSemaphoreGive(client_fd_mutex);
-        }
-    }
-}
-
-static void uart_polling_task(void *arg)
-{
-    static uint8_t data_buf[BUF_SIZE];
-    const TickType_t MIN_POLLING_INTERVAL = pdMS_TO_TICKS(1);
-    const TickType_t MAX_POLLING_INTERVAL = pdMS_TO_TICKS(10);
-    const TickType_t READ_TIMEOUT = pdMS_TO_TICKS(5);
-    
-    TickType_t current_interval = MIN_POLLING_INTERVAL;
-    int consecutive_empty_polls = 0;
-    int cached_client_fd = -1;
-    TickType_t last_client_check = 0;
-    const TickType_t CLIENT_CHECK_INTERVAL = pdMS_TO_TICKS(100);
-
-    while(1) {
-        TickType_t current_time = xTaskGetTickCount();
-
-        if (current_time - last_client_check >= CLIENT_CHECK_INTERVAL) {
-            xSemaphoreTake(client_fd_mutex, portMAX_DELAY);
-            cached_client_fd = client_fd;
-            xSemaphoreGive(client_fd_mutex);
-            last_client_check = current_time;
-        }
-
-        size_t available_len;
-        esp_err_t err = uart_get_buffered_data_len(UART_NUM, &available_len);
-        
-        if (err != ESP_OK || available_len == 0) {
-            consecutive_empty_polls++;
-            if (consecutive_empty_polls > 5) {
-                current_interval = MAX_POLLING_INTERVAL;
-            } else if (consecutive_empty_polls > 2) {
-                current_interval = pdMS_TO_TICKS(5);
-            }
-            
-            if (cached_client_fd <= 0) {
-                vTaskDelay(pdMS_TO_TICKS(50));
-                continue;
-            }
-            
-            vTaskDelay(current_interval);
-            continue;
-        }
-
-        consecutive_empty_polls = 0;
-        current_interval = MIN_POLLING_INTERVAL;
-
-        if (cached_client_fd <= 0) {
-            uart_flush_input(UART_NUM);
-            continue;
-        }
-
-        size_t total_processed = 0;
-        while (available_len > 0 && total_processed < BUF_SIZE) {
-            size_t read_size = (available_len > (BUF_SIZE - total_processed)) ? 
-                              (BUF_SIZE - total_processed) : available_len;
-            
-            int bytes_read = uart_read_bytes(UART_NUM, data_buf + total_processed, 
-                                           read_size, READ_TIMEOUT);
-            
-            if (bytes_read <= 0) {
-                break;
-            }
-            
-            total_processed += bytes_read;
-            available_len -= bytes_read;
-
-            uart_get_buffered_data_len(UART_NUM, &available_len);
-        }
-
-        if (total_processed > 0) {
-            size_t offset = 0;
-            
-            while (offset < total_processed) {
-                const size_t chunk_size = (total_processed - offset > CHUNK_SIZE) ?
-                                        CHUNK_SIZE : (total_processed - offset);
-                
-                struct ws_message msg;
-                msg.type = WS_MSG_UART;
-                msg.content.uart.data = malloc(chunk_size);
-                if (!msg.content.uart.data) {
-                    ESP_LOGE(TAG, "Failed to allocate memory for uart ws msg");
-                    break;
-                }
-                
-                memcpy(msg.content.uart.data, data_buf + offset, chunk_size);
-                msg.content.uart.len = chunk_size;
-
-                if (xQueueSend(ws_queue, &msg, 0) != pdPASS) {
-                    if (xQueueSend(ws_queue, &msg, pdMS_TO_TICKS(5)) != pdPASS) {
-                        ESP_LOGW(TAG, "ws sender queue full, dropping %zu bytes", chunk_size);
-                        free(msg.content.uart.data);
+            for (size_t i = 0; i < clients; ++i)
+            {
+                int fd = client_fds[i];
+                if (httpd_ws_get_fd_info(server, fd) == HTTPD_WS_CLIENT_WEBSOCKET)
+                {
+                    esp_err_t err = httpd_ws_send_frame_async(server, fd, &ws_pkt);
+                    if (err != ESP_OK)
+                    {
+                        ESP_LOGW(TAG, "unified_ws_sender_task: async send failed for fd %d, error: %s", fd,
+                                 esp_err_to_name(err));
                     }
                 }
-                
-                offset += chunk_size;
             }
-        }
-
-        if (available_len > 0) {
-            vTaskDelay(MIN_POLLING_INTERVAL);
-        } else {
-            vTaskDelay(current_interval);
+            free(msg.data);
         }
     }
-    
+    free(client_fds);
     vTaskDelete(NULL);
 }
 
-static esp_err_t ws_handler(httpd_req_t *req) {
-    if (req->method == HTTP_GET) {
-        xSemaphoreTake(client_fd_mutex, portMAX_DELAY);
-        if (client_fd > 0) {
-            // A client is already connected. Reject the new connection.
-            ESP_LOGW(TAG, "Another client tried to connect, but a session is already active. Rejecting.");
-            xSemaphoreGive(client_fd_mutex);
-            httpd_resp_send_err(req, HTTPD_403_FORBIDDEN, "Another client is already connected");
+static void uart_polling_task(void* arg)
+{
+    static uint8_t data_buf[BUF_SIZE];
+    static uint8_t pb_buffer[PB_UART_BUFFER_SIZE];
+
+    while (1)
+    {
+        size_t available_len;
+        uart_get_buffered_data_len(UART_NUM, &available_len);
+
+        if (available_len == 0)
+        {
+            vTaskDelay(pdMS_TO_TICKS(10));
+            continue;
+        }
+
+        size_t read_len = (available_len > BUF_SIZE) ? BUF_SIZE : available_len;
+        int bytes_read = uart_read_bytes(UART_NUM, data_buf, read_len, pdMS_TO_TICKS(5));
+
+        if (bytes_read > 0)
+        {
+            size_t offset = 0;
+            while (offset < bytes_read)
+            {
+                size_t chunk_size = (bytes_read - offset > CHUNK_SIZE) ? CHUNK_SIZE : (bytes_read - offset);
+
+                StatusMessage message = StatusMessage_init_zero;
+                message.which_payload = StatusMessage_uart_data_tag;
+                struct bytes_arg a = {.data = data_buf + offset, .len = chunk_size};
+                message.payload.uart_data.data.funcs.encode = &encode_bytes_callback;
+                message.payload.uart_data.data.arg = &a;
+
+                pb_ostream_t stream = pb_ostream_from_buffer(pb_buffer, sizeof(pb_buffer));
+                if (!pb_encode(&stream, StatusMessage_fields, &message))
+                {
+                    ESP_LOGE(TAG, "Failed to encode uart data: %s", PB_GET_ERROR(&stream));
+                    offset += chunk_size;
+                    continue;
+                }
+
+                struct ws_message msg;
+                msg.type = WS_MSG_UART;
+                msg.len = stream.bytes_written;
+                msg.data = malloc(msg.len);
+
+                if (!msg.data)
+                {
+                    ESP_LOGE(TAG, "Failed to allocate memory for uart ws msg");
+                    offset += chunk_size;
+                    continue;
+                }
+
+                memcpy(msg.data, pb_buffer, msg.len);
+
+                if (xQueueSend(ws_queue, &msg, pdMS_TO_TICKS(10)) != pdPASS)
+                {
+                    ESP_LOGW(TAG, "ws sender queue full, dropping %zu bytes", chunk_size);
+                    free(msg.data);
+                }
+
+                offset += chunk_size;
+            }
+        }
+    }
+    vTaskDelete(NULL);
+}
+
+static void uart_event_task(void* arg)
+{
+    uart_event_t event;
+    while (1)
+    {
+        if (xQueueReceive(uart_event_queue, &event, portMAX_DELAY))
+        {
+            switch (event.type)
+            {
+            case UART_FIFO_OVF:
+                ESP_LOGW(TAG, "UART HW FIFO Overflow");
+                uart_flush_input(UART_NUM);
+                xQueueReset(uart_event_queue);
+                break;
+            case UART_BUFFER_FULL:
+                ESP_LOGW(TAG, "UART ring buffer full");
+                uart_flush_input(UART_NUM);
+                xQueueReset(uart_event_queue);
+                break;
+            case UART_DATA:
+                // Muting this event because it is too noisy
+                break;
+            default:
+                break;
+            }
+        }
+    }
+    vTaskDelete(NULL);
+}
+
+static esp_err_t ws_handler(httpd_req_t* req)
+{
+    if (req->method == HTTP_GET)
+    {
+        ESP_LOGI(TAG, "WebSocket GET request received for URI: %s", req->uri);
+
+        char* query_str = NULL;
+        size_t query_len = httpd_req_get_url_query_len(req) + 1;
+        if (query_len > 1)
+        {
+            query_str = malloc(query_len);
+            if (query_str == NULL)
+            {
+                ESP_LOGE(TAG, "Failed to allocate memory for query string");
+                httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Internal Server Error");
+                return ESP_FAIL;
+            }
+            if (httpd_req_get_url_query_str(req, query_str, query_len) != ESP_OK)
+            {
+                ESP_LOGE(TAG, "Failed to get query string from URI: %s", req->uri);
+                free(query_str);
+                httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Internal Server Error");
+                return ESP_FAIL;
+            }
+            ESP_LOGI(TAG, "Extracted query string: %s", query_str);
+        }
+
+        char token_str[TOKEN_LENGTH];
+        esp_err_t err = ESP_FAIL; // Default to fail
+
+        if (query_str)
+        {
+            err = httpd_query_key_value(query_str, "token", token_str, sizeof(token_str));
+            free(query_str); // Free allocated query string
+        }
+
+        if (err == ESP_OK)
+        {
+            ESP_LOGI(TAG, "Token extracted from query string, value: %s", token_str);
+            if (!auth_validate_token(token_str))
+            {
+                ESP_LOGW(TAG, "WebSocket connection attempt with invalid token for URI: %s", req->uri);
+                httpd_resp_send_err(req, HTTPD_401_UNAUTHORIZED, "Invalid or expired token");
+                return ESP_FAIL;
+            }
+            ESP_LOGD(TAG, "WebSocket token validated for URI: %s", req->uri);
+        }
+        else
+        {
+            ESP_LOGW(TAG, "Failed to extract token from query string or query string not found, error: %s",
+                     esp_err_to_name(err));
+            httpd_resp_send_err(req, HTTPD_401_UNAUTHORIZED, "Authorization token required");
             return ESP_FAIL;
         }
 
-        // No client is connected. Accept the new one.
-        int new_fd = httpd_req_to_sockfd(req);
-        ESP_LOGI(TAG, "Accepting new websocket connection: %d", new_fd);
-        client_fd = new_fd;
-        xSemaphoreGive(client_fd_mutex);
-
-        // Reset queue and flush UART buffer for the new session
-        xQueueReset(ws_queue);
-        uart_flush_input(UART_NUM);
+        ESP_LOGI(TAG, "Handshake done, the new connection was opened");
         return ESP_OK;
     }
 
     httpd_ws_frame_t ws_pkt = {0};
     uint8_t buf[BUF_SIZE];
     ws_pkt.payload = buf;
-    ws_pkt.type = HTTPD_WS_TYPE_BINARY;
 
     esp_err_t ret = httpd_ws_recv_frame(req, &ws_pkt, BUF_SIZE);
-    if (ret != ESP_OK) {
+    if (ret != ESP_OK)
+    {
         ESP_LOGW(TAG, "httpd_ws_recv_frame failed with error: %s", esp_err_to_name(ret));
-        xSemaphoreTake(client_fd_mutex, portMAX_DELAY);
-        if (httpd_req_to_sockfd(req) == client_fd) {
-            client_fd = -1;
-        }
-        xSemaphoreGive(client_fd_mutex);
         return ret;
     }
 
-    uart_write_bytes(UART_NUM, (const char *)ws_pkt.payload, ws_pkt.len);
+    if (ws_pkt.type == HTTPD_WS_TYPE_TEXT && ws_pkt.len == strlen("ping") &&
+        strncmp((const char*)ws_pkt.payload, "ping", ws_pkt.len) == 0)
+    {
+        ESP_LOGD(TAG, "Received application-level ping from client, sending pong.");
+        httpd_ws_frame_t pong_pkt = {
+            .payload = (uint8_t*)"pong", .len = strlen("pong"), .type = HTTPD_WS_TYPE_TEXT, .final = true};
+        return httpd_ws_send_frame(req, &pong_pkt);
+    }
+    else if (ws_pkt.type == HTTPD_WS_TYPE_CLOSE)
+    {
+        ESP_LOGI(TAG, "Client sent close frame, closing connection.");
+        return ESP_OK;
+    }
+    else if (ws_pkt.type == HTTPD_WS_TYPE_PING)
+    {
+        ESP_LOGD(TAG, "Received WebSocket PING control frame (handled by httpd).");
+        return ESP_OK;
+    }
+    else if (ws_pkt.type == HTTPD_WS_TYPE_PONG)
+    {
+        ESP_LOGD(TAG, "Received WebSocket PONG control frame.");
+        return ESP_OK;
+    }
+    else
+    {
+        uart_write_bytes(UART_NUM, (const char*)ws_pkt.payload, ws_pkt.len);
+    }
 
     return ESP_OK;
 }
@@ -269,7 +307,6 @@ static esp_err_t ws_handler(httpd_req_t *req) {
 void register_ws_endpoint(httpd_handle_t server)
 {
     size_t baud_rate_len;
-
     nconfig_get_str_len(UART_BAUD_RATE, &baud_rate_len);
     char buf[baud_rate_len];
     nconfig_read(UART_BAUD_RATE, buf, baud_rate_len);
@@ -280,42 +317,40 @@ void register_ws_endpoint(httpd_handle_t server)
         .parity = UART_PARITY_DISABLE,
         .stop_bits = UART_STOP_BITS_1,
         .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
-        // .source_clk = UART_SCLK_APB,
     };
 
     ESP_ERROR_CHECK(uart_param_config(UART_NUM, &uart_config));
     ESP_ERROR_CHECK(uart_set_pin(UART_NUM, UART_TX_PIN, UART_RX_PIN, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE));
-    ESP_ERROR_CHECK(uart_driver_install(UART_NUM, BUF_SIZE * 2, BUF_SIZE * 2, 0, NULL, 0));
+    ESP_ERROR_CHECK(uart_driver_install(UART_NUM, BUF_SIZE * 2, BUF_SIZE * 2, 20, &uart_event_queue, 0));
 
-    httpd_uri_t ws = {
-        .uri       = "/ws",
-        .method    = HTTP_GET,
-        .handler   = ws_handler,
-        .user_ctx  = NULL,
-        .is_websocket = true
-    };
+    httpd_uri_t ws = {.uri = "/ws", .method = HTTP_GET, .handler = ws_handler, .user_ctx = NULL, .is_websocket = true};
     httpd_register_uri_handler(server, &ws);
 
-    client_fd_mutex = xSemaphoreCreateMutex();
-    ws_queue = xQueueCreate(10, sizeof(struct ws_message)); // Combined queue
+    ws_queue = xQueueCreate(10, sizeof(struct ws_message));
 
-    xTaskCreate(uart_polling_task, "uart_polling_task", 1024*4, NULL, 8, NULL);
-    xTaskCreate(unified_ws_sender_task, "ws_sender_task", 1024*6, server, 9, NULL);
+    xTaskCreate(uart_polling_task, "uart_polling_task", 1024 * 4, NULL, 8, NULL);
+    xTaskCreate(unified_ws_sender_task, "ws_sender_task", 1024 * 6, server, 9, NULL);
+    xTaskCreate(uart_event_task, "uart_event_task", 1024 * 2, NULL, 10, NULL);
 }
 
-void push_data_to_ws(cJSON *data)
+void push_data_to_ws(const uint8_t* data, size_t len)
 {
     struct ws_message msg;
     msg.type = WS_MSG_STATUS;
-    msg.content.status.data = data;
+    msg.data = malloc(len);
+    if (!msg.data)
+    {
+        ESP_LOGE(TAG, "Failed to allocate memory for status ws msg");
+        return;
+    }
+    memcpy(msg.data, data, len);
+    msg.len = len;
+
     if (xQueueSend(ws_queue, &msg, pdMS_TO_TICKS(10)) != pdPASS)
     {
         ESP_LOGW(TAG, "WS queue full, dropping status message");
-        cJSON_Delete(data);
+        free(msg.data);
     }
 }
 
-esp_err_t change_baud_rate(int baud_rate)
-{
-    return uart_set_baudrate(UART_NUM, baud_rate);
-}
+esp_err_t change_baud_rate(int baud_rate) { return uart_set_baudrate(UART_NUM, baud_rate); }

main/system/system.c

@@ -1,46 +0,0 @@
-//
-// Created by shinys on 25. 8. 5.
-//
-
-#include <system.h>
-
-#include <freertos/FreeRTOS.h>
-#include <freertos/task.h>
-#include <esp_log.h>
-
-static const char *TAG = "odroid";
-int t = 0;
-
-TaskHandle_t reboot_handle = NULL;
-
-static void reboot_task(void *arg)
-{
-    while (t > 0)
-    {
-        ESP_LOGW(TAG, "ESP will reboot in [%d] sec..., If you want stop reboot, use command \"reboot -s\"", t);
-        vTaskDelay(1000 / portTICK_PERIOD_MS);
-        --t;
-    }
-    esp_restart();
-}
-
-void start_reboot_timer(int sec)
-{
-
-    if (reboot_handle != NULL)
-    {
-        ESP_LOGW(TAG, "The reboot timer is already running.");
-        return;
-    }
-    t = sec;
-    xTaskCreate(reboot_task, "reboot_task", 2048, NULL, 8, &reboot_handle);
-}
-
-void stop_reboot_timer()
-{
-    if (reboot_handle == NULL)
-    {
-        return;
-    }
-    vTaskDelete(reboot_handle);
-}

main/wifi/ap.c

@@ -0,0 +1,84 @@
+//
+// Created by shinys on 25. 9. 1.
+//
+
+#include <string.h>
+#include "esp_log.h"
+#include "esp_netif.h"
+#include "esp_wifi.h"
+#include "lwip/ip4_addr.h"
+#include "nconfig.h"
+#include "priv_wifi.h"
+#include "wifi.h"
+
+static const char* TAG = "AP";
+
+#define DEFAULT_AP_SSID "odroid-pm"
+#define DEFAULT_AP_PASS "powermate"
+#define AP_CHANNEL 1
+#define AP_MAX_CONN 4
+
+/**
+ * @brief Initializes and configures the AP mode.
+ */
+void wifi_init_ap(void)
+{
+    // Get the network interface handle for the AP
+    esp_netif_t* p_netif_ap = esp_netif_get_handle_from_ifkey("WIFI_AP_DEF");
+
+    if (p_netif_ap)
+    {
+        ESP_LOGI(TAG, "Setting AP static IP to 192.168.4.1");
+        esp_netif_dhcps_stop(p_netif_ap); // Stop DHCP server to apply new IP settings
+
+        esp_netif_ip_info_t ip_info;
+        IP4_ADDR(&ip_info.ip, 192, 168, 4, 1);
+        IP4_ADDR(&ip_info.gw, 192, 168, 4, 1);
+        IP4_ADDR(&ip_info.netmask, 255, 255, 255, 0);
+        esp_netif_set_ip_info(p_netif_ap, &ip_info);
+
+        esp_netif_dhcps_start(p_netif_ap); // Restart DHCP server
+    }
+
+    // Configure Wi-Fi AP settings
+    wifi_config_t wifi_config = {
+        .ap =
+            {
+                .password = "",
+                .channel = AP_CHANNEL,
+                .max_connection = AP_MAX_CONN,
+                .authmode = WIFI_AUTH_WPA2_PSK,
+                .pmf_cfg =
+                    {
+                        .required = false,
+                    },
+            },
+    };
+
+    // Read SSID and password from NVS (nconfig)
+    size_t len;
+    if (nconfig_get_str_len(AP_SSID, &len) == ESP_OK && len > 1)
+    {
+        nconfig_read(AP_SSID, (char*)wifi_config.ap.ssid, sizeof(wifi_config.ap.ssid));
+    }
+    else
+    {
+        strcpy((char*)wifi_config.ap.ssid, DEFAULT_AP_SSID);
+    }
+
+    if (nconfig_get_str_len(AP_PASSWORD, &len) == ESP_OK && len > 1)
+    {
+        nconfig_read(AP_PASSWORD, (char*)wifi_config.ap.password, sizeof(wifi_config.ap.password));
+    }
+
+    // If password is not set, use open authentication
+    if (strlen((char*)wifi_config.ap.password) == 0)
+    {
+        wifi_config.ap.authmode = WIFI_AUTH_OPEN;
+    }
+
+    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_AP, &wifi_config));
+
+    ESP_LOGI(TAG, "wifi_init_ap finished. SSID: %s, Password: %s, Channel: %d", (char*)wifi_config.ap.ssid, "********",
+             AP_CHANNEL);
+}

main/wifi/priv_wifi.h

@@ -0,0 +1,13 @@
+//
+// Created by shinys on 25. 9. 1..
+//
+
+#ifndef ODROID_POWER_MATE_PRIV_WIFI_H
+#define ODROID_POWER_MATE_PRIV_WIFI_H
+
+void wifi_init_sta(void);
+void wifi_init_ap(void);
+void initialize_sntp(void);
+void wifi_set_auto_reconnect(bool enable);
+
+#endif // ODROID_POWER_MATE_PRIV_WIFI_H

main/wifi/sta.c

@@ -0,0 +1,285 @@
+//
+// Created by shinys on 25. 9. 1.
+//
+
+#include <string.h>
+#include "esp_log.h"
+#include "esp_netif.h"
+#include "esp_wifi.h"
+#include "lwip/inet.h"
+#include "nconfig.h"
+#include "priv_wifi.h"
+#include "wifi.h"
+
+static const char* TAG = "STA";
+
+/**
+ * @brief Initializes and configures the STA mode.
+ */
+void wifi_init_sta(void)
+{
+    wifi_config_t wifi_config = {0};
+
+    // Read SSID and password from NVS (nconfig)
+    size_t len;
+    if (nconfig_get_str_len(WIFI_SSID, &len) == ESP_OK && len > 1)
+    {
+        nconfig_read(WIFI_SSID, (char*)wifi_config.sta.ssid, sizeof(wifi_config.sta.ssid));
+    }
+    else
+    {
+        ESP_LOGW(TAG, "STA SSID not configured in NVS.");
+    }
+
+    if (nconfig_get_str_len(WIFI_PASSWORD, &len) == ESP_OK && len > 1)
+    {
+        nconfig_read(WIFI_PASSWORD, (char*)wifi_config.sta.password, sizeof(wifi_config.sta.password));
+    }
+    else
+    {
+        ESP_LOGW(TAG, "STA Password not configured in NVS.");
+    }
+
+    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
+
+    // Check if we should use a static IP
+    char netif_type[16] = {0};
+    if (nconfig_get_str_len(NETIF_TYPE, &len) == ESP_OK && len > 1)
+    {
+        nconfig_read(NETIF_TYPE, netif_type, sizeof(netif_type));
+        if (strcmp(netif_type, "static") == 0)
+        {
+            ESP_LOGI(TAG, "Using static IP configuration for STA.");
+            char ip[16], gw[16], netmask[16], dns1[16], dns2[16];
+            nconfig_read(NETIF_IP, ip, sizeof(ip));
+            nconfig_read(NETIF_GATEWAY, gw, sizeof(gw));
+            nconfig_read(NETIF_SUBNET, netmask, sizeof(netmask));
+            nconfig_read(NETIF_DNS1, dns1, sizeof(dns1));
+            nconfig_read(NETIF_DNS2, dns2, sizeof(dns2));
+            wifi_use_static(ip, gw, netmask, dns1, dns2);
+        }
+    }
+
+    ESP_LOGI(TAG, "wifi_init_sta finished.");
+}
+
+esp_err_t wifi_connect(void)
+{
+    ESP_LOGI(TAG, "Connecting to AP...");
+    return esp_wifi_connect();
+}
+
+esp_err_t wifi_disconnect(void)
+{
+    ESP_LOGI(TAG, "Disconnecting from AP...");
+    return esp_wifi_disconnect();
+}
+
+void wifi_scan_aps(wifi_ap_record_t** ap_records, uint16_t* count)
+{
+    ESP_LOGI(TAG, "Scanning for APs...");
+    *count = 0;
+    *ap_records = NULL;
+
+    wifi_set_auto_reconnect(false);
+
+    wifi_ap_record_t ap_info;
+    if (esp_wifi_sta_get_ap_info(&ap_info) != ESP_OK)
+    {
+        esp_wifi_disconnect();
+    }
+
+    // Start scan, this is a blocking call
+    if (esp_wifi_scan_start(NULL, true) == ESP_OK)
+    {
+        esp_wifi_scan_get_ap_num(count);
+        ESP_LOGI(TAG, "Found %d APs", *count);
+        if (*count > 0)
+        {
+            *ap_records = (wifi_ap_record_t*)malloc(sizeof(wifi_ap_record_t) * (*count));
+            if (*ap_records != NULL)
+            {
+                esp_wifi_scan_get_ap_records(count, *ap_records);
+            }
+            else
+            {
+                ESP_LOGE(TAG, "Failed to allocate memory for AP records");
+                *count = 0;
+            }
+        }
+    }
+
+    wifi_set_auto_reconnect(true);
+
+    if (esp_wifi_sta_get_ap_info(&ap_info) != ESP_OK)
+    {
+        if (!nconfig_value_is_not_set(WIFI_SSID))
+        {
+            wifi_connect();
+        }
+    }
+}
+
+esp_err_t wifi_get_current_ap_info(wifi_ap_record_t* ap_info)
+{
+    if (ap_info == NULL)
+    {
+        return ESP_ERR_INVALID_ARG;
+    }
+    // This function retrieves the AP record to which the STA is currently connected.
+    esp_err_t err = esp_wifi_sta_get_ap_info(ap_info);
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to get connected AP info: %s", esp_err_to_name(err));
+    }
+    return err;
+}
+
+esp_err_t wifi_get_current_ip_info(esp_netif_ip_info_t* ip_info)
+{
+    if (ip_info == NULL)
+    {
+        return ESP_ERR_INVALID_ARG;
+    }
+    esp_netif_t* netif = esp_netif_get_handle_from_ifkey("WIFI_STA_DEF");
+    if (netif == NULL)
+    {
+        return ESP_FAIL;
+    }
+    return esp_netif_get_ip_info(netif, ip_info);
+}
+
+esp_err_t wifi_get_dns_info(esp_netif_dns_type_t type, esp_netif_dns_info_t* dns_info)
+{
+    if (dns_info == NULL)
+    {
+        return ESP_ERR_INVALID_ARG;
+    }
+    esp_netif_t* netif = esp_netif_get_handle_from_ifkey("WIFI_STA_DEF");
+    if (netif == NULL)
+    {
+        return ESP_FAIL;
+    }
+    return esp_netif_get_dns_info(netif, type, dns_info);
+}
+
+esp_err_t wifi_use_dhcp(void)
+{
+    esp_netif_t* netif = esp_netif_get_handle_from_ifkey("WIFI_STA_DEF");
+    if (netif == NULL)
+    {
+        return ESP_FAIL;
+    }
+    ESP_LOGI(TAG, "Setting STA to use DHCP");
+    esp_err_t err = esp_netif_dhcpc_start(netif);
+    if (err == ESP_OK)
+    {
+        nconfig_write(NETIF_TYPE, "dhcp");
+    }
+    return err;
+}
+
+esp_err_t wifi_use_static(const char* ip, const char* gw, const char* netmask, const char* dns1, const char* dns2)
+{
+    esp_netif_t* netif = esp_netif_get_handle_from_ifkey("WIFI_STA_DEF");
+    if (netif == NULL)
+    {
+        return ESP_FAIL;
+    }
+
+    ESP_LOGI(TAG, "Setting STA to use static IP");
+    esp_err_t err = esp_netif_dhcpc_stop(netif);
+    if (err != ESP_OK && err != ESP_ERR_ESP_NETIF_DHCP_ALREADY_STOPPED)
+    {
+        ESP_LOGE(TAG, "Failed to stop DHCP client: %s", esp_err_to_name(err));
+        return err;
+    }
+
+    esp_netif_ip_info_t ip_info;
+    ip_info.ip.addr = ipaddr_addr(ip);
+    ip_info.gw.addr = ipaddr_addr(gw);
+    ip_info.netmask.addr = ipaddr_addr(netmask);
+
+    err = esp_netif_set_ip_info(netif, &ip_info);
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to set static IP: %s", esp_err_to_name(err));
+        return err;
+    }
+
+    esp_netif_dns_info_t dns_info;
+    dns_info.ip.u_addr.ip4.addr = ipaddr_addr(dns1);
+    dns_info.ip.type = IPADDR_TYPE_V4;
+    err = esp_netif_set_dns_info(netif, ESP_NETIF_DNS_MAIN, &dns_info);
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to set main DNS: %s", esp_err_to_name(err));
+        // continue anyway
+    }
+
+    if (dns2 && strlen(dns2) > 0)
+    {
+        dns_info.ip.u_addr.ip4.addr = ipaddr_addr(dns2);
+        err = esp_netif_set_dns_info(netif, ESP_NETIF_DNS_BACKUP, &dns_info);
+        if (err != ESP_OK)
+        {
+            ESP_LOGE(TAG, "Failed to set backup DNS: %s", esp_err_to_name(err));
+        }
+    }
+
+    // Save settings to NVS
+    nconfig_write(NETIF_TYPE, "static");
+    nconfig_write(NETIF_IP, ip);
+    nconfig_write(NETIF_GATEWAY, gw);
+    nconfig_write(NETIF_SUBNET, netmask);
+    nconfig_write(NETIF_DNS1, dns1);
+    nconfig_write(NETIF_DNS2, dns2);
+
+    return ESP_OK;
+}
+
+esp_err_t wifi_sta_set_ap(const char* ssid, const char* password)
+{
+    ESP_LOGI(TAG, "Setting new AP with SSID: %s", ssid);
+
+    // Save settings to NVS first
+    esp_err_t err = nconfig_write(WIFI_SSID, ssid);
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to save SSID to NVS: %s", esp_err_to_name(err));
+        return err;
+    }
+
+    err = nconfig_write(WIFI_PASSWORD, password);
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to save password to NVS: %s", esp_err_to_name(err));
+        return err;
+    }
+
+    // Now configure the wifi interface
+    wifi_config_t wifi_config = {0};
+    strncpy((char*)wifi_config.sta.ssid, ssid, sizeof(wifi_config.sta.ssid));
+    strncpy((char*)wifi_config.sta.password, password, sizeof(wifi_config.sta.password));
+
+    err = esp_wifi_set_config(WIFI_IF_STA, &wifi_config);
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to set Wi-Fi config: %s", esp_err_to_name(err));
+        return err;
+    }
+
+    // Disconnect from any current AP and connect to the new one
+    ESP_LOGI(TAG, "Disconnecting from current AP if connected.");
+    esp_wifi_disconnect();
+
+    ESP_LOGI(TAG, "Connecting to new AP...");
+    err = esp_wifi_connect();
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to start connection to new AP: %s", esp_err_to_name(err));
+        return err;
+    }
+
+    return ESP_OK;
+}

main/wifi/wifi.c

@@ -1,550 +1,168 @@
 //
-// Created by shinys on 25. 7. 10.
+// Created by shinys on 25. 9. 1.
 //
 
+#include <string.h>
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_mac.h"
+#include "esp_system.h"
+#include "esp_wifi.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "nconfig.h"
+#include "priv_wifi.h"
+
 #include "wifi.h"
 
-#include "nconfig.h"
 #include "indicator.h"
+static bool s_auto_reconnect = true;
 
-#include <string.h>
-#include <system.h>
-#include <lwip/sockets.h>
-#include <time.h>
+static const char* TAG = "WIFI";
 
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-
-#include "esp_event.h"
-#include "esp_wifi.h"
-#include "esp_wifi_default.h"
-#include "esp_log.h"
-#include "esp_netif.h"
-#include "esp_netif_sntp.h"
-#include "rom/ets_sys.h"
-
-static const char *TAG = "odroid";
-#define MAX_RETRY 10
-#define MAX_SCAN 20
+void wifi_set_auto_reconnect(bool enable) { s_auto_reconnect = enable; }
 
 
-const char* auth_mode_str(wifi_auth_mode_t mode)
+static void wifi_event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data)
 {
-    switch (mode)
+    if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_AP_STACONNECTED)
     {
-    case WIFI_AUTH_OPEN:
-        return "OPEN";
-    case WIFI_AUTH_WEP:
-        return "WEP";
-    case WIFI_AUTH_WPA_PSK:
-        return "WPA_PSK";
-    case WIFI_AUTH_WPA2_PSK:
-        return "WPA2_PSK";
-    case WIFI_AUTH_WPA_WPA2_PSK:
-        return "WPA_WPA2_PSK";
-    case WIFI_AUTH_ENTERPRISE:
-        return "ENTERPRISE";
-    case WIFI_AUTH_WPA3_PSK:
-        return "WPA3_PSK";
-    case WIFI_AUTH_WPA2_WPA3_PSK:
-        return "WPA2_WPA3_PSK";
-    case WIFI_AUTH_WAPI_PSK:
-        return "WAPI_PSK";
-    case WIFI_AUTH_OWE:
-        return "OWE";
-    case WIFI_AUTH_WPA3_ENT_192:
-        return "WPA3_ENT_192";
-    case WIFI_AUTH_WPA3_EXT_PSK:
-        return "WPA3_EXT_PSK";
-    case WIFI_AUTH_WPA3_EXT_PSK_MIXED_MODE:
-        return "WPA3_EXT_PSK_MIXED_MODE";
-    case WIFI_AUTH_DPP:
-        return "DPP";
-    case WIFI_AUTH_WPA3_ENTERPRISE:
-        return "WPA3_ENTERPRISE";
-    case WIFI_AUTH_WPA2_WPA3_ENTERPRISE:
-        return "WPA2_WPA3_ENTERPRISE";
-    default:
-        return "UNKNOWN";
+        wifi_event_ap_staconnected_t* event = (wifi_event_ap_staconnected_t*)event_data;
+        ESP_LOGI(TAG, "Station " MACSTR " joined, AID=%d", MAC2STR(event->mac), event->aid);
+    }
+    else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_AP_STADISCONNECTED)
+    {
+        wifi_event_ap_stadisconnected_t* event = (wifi_event_ap_stadisconnected_t*)event_data;
+        ESP_LOGI(TAG, "Station " MACSTR " left, AID=%d", MAC2STR(event->mac), event->aid);
+    }
+    else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START)
+    {
+        ESP_LOGI(TAG, "Station mode started");
+        // Only try to connect if SSID is configured
+        if (!nconfig_value_is_not_set(WIFI_SSID))
+        {
+            esp_wifi_connect();
+        }
+        else
+        {
+            ESP_LOGI(TAG, "STA SSID not configured, not connecting.");
+        }
+    }
+    else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED)
+    {
+        led_set(LED_BLU, BLINK_TRIPLE);
+        wifi_event_sta_disconnected_t* event = (wifi_event_sta_disconnected_t*)event_data;
+        ESP_LOGW(TAG, "Disconnected from AP, reason: %s", wifi_reason_str(event->reason));
+
+        if (event->reason != WIFI_REASON_ASSOC_LEAVE)
+        {
+            if (s_auto_reconnect && !nconfig_value_is_not_set(WIFI_SSID))
+            {
+                ESP_LOGI(TAG, "Connection lost, attempting to reconnect...");
+                esp_wifi_connect();
+            }
+        }
+    }
+    else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP)
+    {
+        led_set(LED_BLU, BLINK_SOLID);
+        ip_event_got_ip_t* event = (ip_event_got_ip_t*)event_data;
+        ESP_LOGI(TAG, "Got IP:" IPSTR, IP2STR(&event->ip_info.ip));
+        sync_time();
     }
 }
 
-static const char* wifi_reason_str(wifi_err_reason_t reason) {
-    switch (reason) {
-        case WIFI_REASON_UNSPECIFIED: return "UNSPECIFIED";
-        case WIFI_REASON_AUTH_EXPIRE: return "AUTH_EXPIRE";
-        case WIFI_REASON_AUTH_LEAVE: return "AUTH_LEAVE";
-        case WIFI_REASON_ASSOC_EXPIRE: return "ASSOC_EXPIRE";
-        case WIFI_REASON_ASSOC_TOOMANY: return "ASSOC_TOOMANY";
-        case WIFI_REASON_NOT_AUTHED: return "NOT_AUTHED";
-        case WIFI_REASON_NOT_ASSOCED: return "NOT_ASSOCED";
-        case WIFI_REASON_ASSOC_LEAVE: return "ASSOC_LEAVE";
-        case WIFI_REASON_ASSOC_NOT_AUTHED: return "ASSOC_NOT_AUTHED";
-        case WIFI_REASON_DISASSOC_PWRCAP_BAD: return "DISASSOC_PWRCAP_BAD";
-        case WIFI_REASON_DISASSOC_SUPCHAN_BAD: return "DISASSOC_SUPCHAN_BAD";
-        case WIFI_REASON_IE_INVALID: return "IE_INVALID";
-        case WIFI_REASON_MIC_FAILURE: return "MIC_FAILURE";
-        case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT: return "4WAY_HANDSHAKE_TIMEOUT";
-        case WIFI_REASON_GROUP_KEY_UPDATE_TIMEOUT: return "GROUP_KEY_UPDATE_TIMEOUT";
-        case WIFI_REASON_IE_IN_4WAY_DIFFERS: return "IE_IN_4WAY_DIFFERS";
-        case WIFI_REASON_GROUP_CIPHER_INVALID: return "GROUP_CIPHER_INVALID";
-        case WIFI_REASON_PAIRWISE_CIPHER_INVALID: return "PAIRWISE_CIPHER_INVALID";
-        case WIFI_REASON_AKMP_INVALID: return "AKMP_INVALID";
-        case WIFI_REASON_UNSUPP_RSN_IE_VERSION: return "UNSUPP_RSN_IE_VERSION";
-        case WIFI_REASON_INVALID_RSN_IE_CAP: return "INVALID_RSN_IE_CAP";
-        case WIFI_REASON_802_1X_AUTH_FAILED: return "802_1X_AUTH_FAILED";
-        case WIFI_REASON_CIPHER_SUITE_REJECTED: return "CIPHER_SUITE_REJECTED";
-        case WIFI_REASON_INVALID_PMKID: return "INVALID_PMKID";
-        case WIFI_REASON_BEACON_TIMEOUT: return "BEACON_TIMEOUT";
-        case WIFI_REASON_NO_AP_FOUND: return "NO_AP_FOUND";
-        case WIFI_REASON_AUTH_FAIL: return "AUTH_FAIL";
-        case WIFI_REASON_ASSOC_FAIL: return "ASSOC_FAIL";
-        case WIFI_REASON_HANDSHAKE_TIMEOUT: return "HANDSHAKE_TIMEOUT";
-        case WIFI_REASON_CONNECTION_FAIL: return "CONNECTION_FAIL";
-        case WIFI_REASON_AP_TSF_RESET: return "AP_TSF_RESET";
-        case WIFI_REASON_ROAMING: return "ROAMING";
-        default: return "UNKNOWN";
-    }
-}
-
-static esp_netif_t *wifi_sta_netif = NULL;
-static esp_netif_t *wifi_ap_netif = NULL;
-
-static int s_retry_num = 0;
-
-static esp_err_t wifi_sta_do_disconnect(void);
-
-static void sntp_sync_time_cb(struct timeval *tv)
+void wifi_init(void)
 {
-    time_t now = 0;
-    struct tm timeinfo = { 0 };
-    time(&now);
-    localtime_r(&now, &timeinfo);
-    char strftime_buf[64];
-    strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
-    ESP_LOGI(TAG, "Time synchronized: %s", strftime_buf);
-}
-
-static void handler_on_wifi_disconnect(void *arg, esp_event_base_t event_base,
-                               int32_t event_id, void *event_data)
-{
-    s_retry_num++;
-    if (s_retry_num > MAX_RETRY) {
-        ESP_LOGW(TAG, "WiFi Connect failed %d times, stop reconnect.", s_retry_num);
-        /* let example_wifi_sta_do_connect() return */
-
-        wifi_sta_do_disconnect();
-        start_reboot_timer(60);
-        return;
-    }
-    wifi_event_sta_disconnected_t *disconn = event_data;
-    if (disconn->reason == WIFI_REASON_ROAMING) {
-        ESP_LOGD(TAG, "station roaming, do nothing");
-        return;
-    }
-    ESP_LOGW(TAG, "Wi-Fi disconnected, reason: (%s)", wifi_reason_str(disconn->reason));
-    ESP_LOGI(TAG, "Trying to reconnect...");
-    esp_err_t err = esp_wifi_connect();
-    if (err == ESP_ERR_WIFI_NOT_STARTED) {
-        return;
-    }
-    ESP_ERROR_CHECK(err);
-}
-
-static void handler_on_wifi_connect(void *esp_netif, esp_event_base_t event_base,
-                            int32_t event_id, void *event_data)
-{
-
-}
-
-static void handler_on_sta_got_ip(void *arg, esp_event_base_t event_base,
-                      int32_t event_id, void *event_data)
-{
-    stop_reboot_timer();
-    s_retry_num = 0;
-    ip_event_got_ip_t *event = (ip_event_got_ip_t *)event_data;
-    if (strcmp("sta", esp_netif_get_desc(event->esp_netif)) != 0) {
-        return;
-    }
-    ESP_LOGI(TAG, "Got IPv4 event: Interface \"%s\" address: " IPSTR, esp_netif_get_desc(event->esp_netif), IP2STR(&event->ip_info.ip));
-    ESP_LOGI(TAG, "- IPv4 address: " IPSTR ",", IP2STR(&event->ip_info.ip));
-    sync_time();
-    led_set(LED_BLU, BLINK_SOLID);
-}
-
-static void wifi_ap_event_handler(void* arg, esp_event_base_t event_base,
-                                int32_t event_id, void* event_data)
-{
-    if (event_id == WIFI_EVENT_AP_STACONNECTED) {
-        wifi_event_ap_staconnected_t* event = (wifi_event_ap_staconnected_t*) event_data;
-        ESP_LOGI(TAG, "station "MACSTR" join, AID=%d",
-                 MAC2STR(event->mac), event->aid);
-    } else if (event_id == WIFI_EVENT_AP_STADISCONNECTED) {
-        wifi_event_ap_stadisconnected_t* event = (wifi_event_ap_stadisconnected_t*) event_data;
-        ESP_LOGI(TAG, "station "MACSTR" leave, AID=%d",
-                 MAC2STR(event->mac), event->aid);
-    }
-}
-
-
-static esp_err_t set_hostname(esp_netif_t* esp_netif, const char *hostname)
-{
-    if (esp_netif_set_hostname(esp_netif, hostname) != ESP_OK) return ESP_FAIL;
-    return ESP_OK;
-}
-
-static void wifi_start(wifi_mode_t mode)
-{
-    size_t hostname_len;
-    char type_buf[16];
+    // Create network interfaces for both AP and STA.
+    // This is done unconditionally to allow for dynamic mode switching.
+    esp_netif_create_default_wifi_ap();
+    esp_netif_create_default_wifi_sta();
 
     wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
     ESP_ERROR_CHECK(esp_wifi_init(&cfg));
 
-    if (mode == WIFI_MODE_STA || mode == WIFI_MODE_APSTA) {
-        esp_netif_inherent_config_t esp_netif_config = ESP_NETIF_INHERENT_DEFAULT_WIFI_STA();
-        wifi_sta_netif = esp_netif_create_wifi(WIFI_IF_STA, &esp_netif_config);
+    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
+    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &wifi_event_handler, NULL));
 
-        if (nconfig_read(NETIF_TYPE, type_buf, sizeof(type_buf)) == ESP_OK && strcmp(type_buf, "static") == 0) {
-            ESP_LOGI(TAG, "Using static IP configuration");
-            char ip_buf[16], gw_buf[16], mask_buf[16], dns1_buf[16], dns2_buf[16];
-            nconfig_read(NETIF_IP, ip_buf, sizeof(ip_buf));
-            nconfig_read(NETIF_GATEWAY, gw_buf, sizeof(gw_buf));
-            nconfig_read(NETIF_SUBNET, mask_buf, sizeof(mask_buf));
-            const char* dns1 = (nconfig_read(NETIF_DNS1, dns1_buf, sizeof(dns1_buf)) == ESP_OK) ? dns1_buf : NULL;
-            const char* dns2 = (nconfig_read(NETIF_DNS2, dns2_buf, sizeof(dns2_buf)) == ESP_OK) ? dns2_buf : NULL;
-            if (dns1 == NULL)
-                wifi_use_static(ip_buf, gw_buf, mask_buf, "8.8.8.8", "8.8.4.4");
-            else
-                wifi_use_static(ip_buf, gw_buf, mask_buf, dns1, dns2);
-        } else {
-            ESP_LOGI(TAG, "Using DHCP configuration");
-            wifi_use_dhcp();
-        }
+    initialize_sntp();
 
-        nconfig_get_str_len(NETIF_HOSTNAME, &hostname_len);
-        char buf[hostname_len];
-        nconfig_read(NETIF_HOSTNAME, buf, sizeof(buf));
-        set_hostname(wifi_sta_netif, buf);
-    }
+    char mode_str[10] = {0};
+    wifi_mode_t mode = WIFI_MODE_APSTA;
+    const char* started_mode_str = "APSTA";
 
-    if (mode == WIFI_MODE_AP || mode == WIFI_MODE_APSTA) {
-        esp_netif_inherent_config_t esp_netif_config_ap = ESP_NETIF_INHERENT_DEFAULT_WIFI_AP();
-        wifi_ap_netif = esp_netif_create_wifi(WIFI_IF_AP, &esp_netif_config_ap);
-        ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_AP_STACONNECTED, &wifi_ap_event_handler, NULL));
-        ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_AP_STADISCONNECTED, &wifi_ap_event_handler, NULL));
-    }
-
-    esp_wifi_set_default_wifi_sta_handlers();
-
-    ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
-    ESP_ERROR_CHECK(esp_wifi_set_mode(mode));
-    ESP_ERROR_CHECK(esp_wifi_start());
-}
-
-
-static void wifi_stop(void)
-{
-    esp_err_t err = esp_wifi_stop();
-    if (err == ESP_ERR_WIFI_NOT_INIT) {
-        return;
-    }
-    ESP_ERROR_CHECK(err);
-
-    if (wifi_ap_netif) {
-        esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_AP_STACONNECTED, &wifi_ap_event_handler);
-        esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_AP_STADISCONNECTED, &wifi_ap_event_handler);
-    }
-
-    ESP_ERROR_CHECK(esp_wifi_deinit());
-
-    if (wifi_sta_netif) {
-        esp_netif_destroy(wifi_sta_netif);
-        wifi_sta_netif = NULL;
-    }
-    if (wifi_ap_netif) {
-        esp_netif_destroy(wifi_ap_netif);
-        wifi_ap_netif = NULL;
-    }
-}
-
-
-static esp_err_t wifi_sta_do_connect(wifi_config_t wifi_config)
-{
-    stop_reboot_timer();
-    s_retry_num = 0;
-    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, handler_on_wifi_disconnect, NULL));
-    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, handler_on_sta_got_ip, NULL));
-    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_CONNECTED, handler_on_wifi_connect, wifi_sta_netif));
-
-
-    ESP_LOGI(TAG, "Connecting to %s...", (char*)wifi_config.sta.ssid);
-    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
-    esp_err_t ret = esp_wifi_connect();
-    if (ret != ESP_OK) {
-        ESP_LOGE(TAG, "WiFi connect failed! ret:%x", ret);
-        return ret;
-    }
-    return ESP_OK;
-}
-
-static esp_err_t wifi_sta_do_disconnect(void)
-{
-    ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, &handler_on_wifi_disconnect));
-    ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, &handler_on_sta_got_ip));
-    ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_STA_CONNECTED, &handler_on_wifi_connect));
-    led_set(LED_BLU, BLINK_DOUBLE);
-
-    return esp_wifi_disconnect();
-}
-
-static void wifi_shutdown(void)
-{
-    wifi_sta_do_disconnect();
-    wifi_stop();
-}
-
-static esp_err_t do_connect(void)
-{
-    esp_err_t err;
-    char mode_buf[16] = {0};
-    wifi_mode_t mode = WIFI_MODE_STA; // Default mode
-
-    if (nconfig_read(WIFI_MODE, mode_buf, sizeof(mode_buf)) == ESP_OK) {
-        if (strcmp(mode_buf, "apsta") == 0) {
-            mode = WIFI_MODE_APSTA;
-            ESP_LOGI(TAG, "Starting in APSTA mode");
-        } else { // "sta" or anything else defaults to STA
+    if (nconfig_read(WIFI_MODE, mode_str, sizeof(mode_str)) == ESP_OK)
+    {
+        if (strcmp(mode_str, "sta") == 0)
+        {
             mode = WIFI_MODE_STA;
-            ESP_LOGI(TAG, "Starting in STA mode");
+            started_mode_str = "STA";
         }
-    } else {
-        ESP_LOGI(TAG, "WIFI_MODE not set, defaulting to STA mode");
-    }
-
-    wifi_start(mode);
-
-    // Configure and connect STA interface if needed
-    if (mode == WIFI_MODE_STA || mode == WIFI_MODE_APSTA) {
-        wifi_config_t sta_config = {0};
-        bool sta_creds_ok = false;
-        if (nconfig_read(WIFI_SSID, (char*)sta_config.sta.ssid, 32) == ESP_OK && strlen((char*)sta_config.sta.ssid) > 0) {
-            if (nconfig_read(WIFI_PASSWORD, (char*)sta_config.sta.password, 64) == ESP_OK) {
-                sta_creds_ok = true;
-            }
-        }
-
-        if (sta_creds_ok) {
-            err = wifi_sta_do_connect(sta_config);
-            if (err != ESP_OK && mode == WIFI_MODE_STA) {
-                // In STA-only mode, failure to connect is a fatal error
-                return err;
-            }
-        } else if (mode == WIFI_MODE_STA) {
-            // In STA-only mode, missing credentials is a fatal error
-            ESP_LOGE(TAG, "Missing STA credentials in STA mode.");
-            return ESP_FAIL;
-        } else {
-            // In APSTA mode, missing credentials is a warning
-            ESP_LOGW(TAG, "Missing STA credentials in APSTA mode. STA will not connect.");
+        else if (strcmp(mode_str, "apsta") != 0)
+        {
+            ESP_LOGW(TAG, "Invalid Wi-Fi mode in nconfig: '%s'. Defaulting to APSTA.", mode_str);
         }
     }
-
-    // Configure AP interface if needed
-    if (mode == WIFI_MODE_AP || mode == WIFI_MODE_APSTA) {
-        char ap_ssid[32], ap_pass[64];
-        wifi_config_t ap_config = {
-            .ap = {
-                .channel = 1,
-                .max_connection = 4,
-                .authmode = WIFI_AUTH_WPA2_PSK,
-                .ssid_hidden = 0,
-            },
-        };
-
-        if (nconfig_read(AP_SSID, ap_ssid, sizeof(ap_ssid)) == ESP_OK && strlen(ap_ssid) > 0) {
-            strcpy((char*)ap_config.ap.ssid, ap_ssid);
-        } else {
-            strcpy((char*)ap_config.ap.ssid, "ODROID-REMOTE-AP");
-        }
-
-        if (nconfig_read(AP_PASSWORD, ap_pass, sizeof(ap_pass)) == ESP_OK && strlen(ap_pass) >= 8) {
-            strcpy((char*)ap_config.ap.password, ap_pass);
-        } else {
-            ap_config.ap.authmode = WIFI_AUTH_OPEN;
-            memset(ap_config.ap.password, 0, sizeof(ap_config.ap.password));
-        }
-        ap_config.ap.ssid_len = strlen((char*)ap_config.ap.ssid);
-
-        ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_AP, &ap_config));
-        ESP_LOGI(TAG, "AP configured, SSID: %s", ap_config.ap.ssid);
-    }
-
-    return ESP_OK;
-}
-
-esp_err_t wifi_connect(void)
-{
-    led_set(LED_BLU, BLINK_DOUBLE);
-
-    static esp_sntp_config_t ntp_cfg = ESP_NETIF_SNTP_DEFAULT_CONFIG_MULTIPLE(3,
-        ESP_SNTP_SERVER_LIST("time.windows.com", "pool.ntp.org", "216.239.35.0")); // google public ntp
-    ntp_cfg.start = false;
-    ntp_cfg.sync_cb = sntp_sync_time_cb;
-    ntp_cfg.smooth_sync = true; // Sync immediately when started
-    esp_netif_sntp_init(&ntp_cfg);
-
-    if (do_connect() != ESP_OK) {
-        return ESP_FAIL;
-    }
-    ESP_ERROR_CHECK(esp_register_shutdown_handler(&wifi_shutdown));
-    return ESP_OK;
-}
-
-
-esp_err_t wifi_disconnect(void)
-{
-    wifi_shutdown();
-    ESP_ERROR_CHECK(esp_unregister_shutdown_handler(&wifi_shutdown));
-    return ESP_OK;
-}
-
-void wifi_scan_aps(wifi_ap_record_t **ap_records, uint16_t* count)
-{
-    ESP_LOGI(TAG, "Starting WiFi scan...");
-
-    esp_err_t err = esp_wifi_scan_start(NULL, true);
-    if (err != ESP_OK) {
-        ESP_LOGE(TAG, "esp_wifi_scan_start failed: %s", esp_err_to_name(err));
-        *count = 0;
-        *ap_records = NULL;
-        return;
-    }
-
-    ESP_ERROR_CHECK(esp_wifi_scan_get_ap_num(count));
-    ESP_LOGI(TAG, "Found %u access points", *count);
-
-    if (*count == 0)
-        *ap_records = NULL;
     else
-        *ap_records = calloc(*count, sizeof(wifi_ap_record_t));
-    ESP_ERROR_CHECK(esp_wifi_scan_get_ap_records(count, *ap_records));
-    ESP_LOGI(TAG, "Scan done");
-}
-
-esp_err_t wifi_get_current_ap_info(wifi_ap_record_t *ap_info)
-{
-    esp_err_t ret = esp_wifi_sta_get_ap_info(ap_info);
-    if (ret != ESP_OK) {
-        // Clear ssid and set invalid rssi on error
-        memset(ap_info->ssid, 0, sizeof(ap_info->ssid));
-        ap_info->rssi = -127;
-    }
-    return ret;
-}
-
-esp_err_t wifi_get_current_ip_info(esp_netif_ip_info_t *ip_info)
-{
-    return esp_netif_get_ip_info(wifi_sta_netif, ip_info);
-}
-
-esp_err_t wifi_get_dns_info(esp_netif_dns_type_t type, esp_netif_dns_info_t *dns_info)
-{
-    if (wifi_sta_netif) {
-        return esp_netif_get_dns_info(wifi_sta_netif, type, dns_info);
-    }
-    return ESP_FAIL;
-}
-
-esp_err_t wifi_use_static(const char *ip, const char *gw, const char *netmask, const char *dns1, const char *dns2)
-{
-    if (wifi_sta_netif == NULL) {
-        return ESP_FAIL;
+    {
+        ESP_LOGW(TAG, "Failed to read Wi-Fi mode from nconfig. Defaulting to APSTA.");
     }
 
-    esp_err_t err = esp_netif_dhcpc_stop(wifi_sta_netif);
-    if (err != ESP_OK && err != ESP_ERR_ESP_NETIF_DHCP_ALREADY_STOPPED) {
-        ESP_LOGE(TAG, "Failed to stop DHCP client: %s", esp_err_to_name(err));
-        return err;
+    ESP_ERROR_CHECK(esp_wifi_set_mode(mode));
+
+    if (mode == WIFI_MODE_APSTA)
+    {
+        wifi_init_ap();
+        wifi_init_sta();
+    }
+    else if (mode == WIFI_MODE_STA)
+    {
+        wifi_init_sta();
     }
 
-    esp_netif_ip_info_t ip_info;
-    inet_pton(AF_INET, ip, &ip_info.ip);
-    inet_pton(AF_INET, gw, &ip_info.gw);
-    inet_pton(AF_INET, netmask, &ip_info.netmask);
-    err = esp_netif_set_ip_info(wifi_sta_netif, &ip_info);
-    if (err != ESP_OK) {
-        ESP_LOGE(TAG, "Failed to set static IP info: %s", esp_err_to_name(err));
-        return err;
-    }
+    ESP_ERROR_CHECK(esp_wifi_start());
 
-    esp_netif_dns_info_t dns_info;
-    if (dns1 && strlen(dns1) > 0) {
-        inet_pton(AF_INET, dns1, &dns_info.ip.u_addr.ip4);
-        esp_netif_set_dns_info(wifi_sta_netif, ESP_NETIF_DNS_MAIN, &dns_info);
-    } else {
-        esp_netif_set_dns_info(wifi_sta_netif, ESP_NETIF_DNS_MAIN, NULL);
-    }
-
-    if (dns2 && strlen(dns2) > 0) {
-        inet_pton(AF_INET, dns2, &dns_info.ip.u_addr.ip4);
-        esp_netif_set_dns_info(wifi_sta_netif, ESP_NETIF_DNS_BACKUP, &dns_info);
-    } else {
-        esp_netif_set_dns_info(wifi_sta_netif, ESP_NETIF_DNS_BACKUP, NULL);
-    }
-
-    return ESP_OK;
-}
-
-esp_err_t wifi_use_dhcp(void)
-{
-    if (wifi_sta_netif == NULL) {
-        return ESP_FAIL;
-    }
-    esp_err_t err = esp_netif_dhcpc_start(wifi_sta_netif);
-    if (err != ESP_OK && err != ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED) {
-        ESP_LOGE(TAG, "Failed to start DHCP client: %s", esp_err_to_name(err));
-        return err;
-    }
-    return ESP_OK;
+    led_set(LED_BLU, BLINK_TRIPLE);
+    ESP_LOGI(TAG, "wifi_init_all finished. Started in %s mode.", started_mode_str);
 }
 
 esp_err_t wifi_switch_mode(const char* mode)
 {
-    if (strcmp(mode, "sta") != 0 && strcmp(mode, "apsta") != 0) {
-        ESP_LOGE(TAG, "Invalid mode specified: %s. Use 'sta' or 'apsta'.", mode);
+    ESP_LOGI(TAG, "Switching Wi-Fi mode to %s", mode);
+
+    wifi_mode_t new_mode;
+    if (strcmp(mode, "sta") == 0)
+    {
+        new_mode = WIFI_MODE_STA;
+    }
+    else if (strcmp(mode, "apsta") == 0)
+    {
+        new_mode = WIFI_MODE_APSTA;
+    }
+    else
+    {
+        ESP_LOGE(TAG, "Unsupported mode: %s", mode);
         return ESP_ERR_INVALID_ARG;
     }
 
-    char current_mode_buf[16] = {0};
-    if (nconfig_read(WIFI_MODE, current_mode_buf, sizeof(current_mode_buf)) == ESP_OK) {
-        if (strcmp(current_mode_buf, mode) == 0) {
-            ESP_LOGI(TAG, "Already in %s mode.", mode);
-            return ESP_OK;
-        }
+    nconfig_write(WIFI_MODE, mode);
+
+    ESP_ERROR_CHECK(esp_wifi_stop());
+    ESP_ERROR_CHECK(esp_wifi_set_mode(new_mode));
+
+    if (new_mode == WIFI_MODE_APSTA)
+    {
+        wifi_init_ap();
+        wifi_init_sta();
+    }
+    else if (new_mode == WIFI_MODE_STA)
+    {
+        wifi_init_sta();
     }
 
-    ESP_LOGI(TAG, "Switching Wi-Fi mode to %s.", mode);
+    ESP_ERROR_CHECK(esp_wifi_start());
 
-    esp_err_t err = nconfig_write(WIFI_MODE, mode);
-    if (err != ESP_OK) {
-        ESP_LOGE(TAG, "Failed to save new Wi-Fi mode to NVS");
-        return err;
-    }
+    ESP_LOGI(TAG, "Wi-Fi mode switched to %s", mode);
 
-    wifi_disconnect();
-    err = wifi_connect();
-    if (err != ESP_OK) {
-        ESP_LOGE(TAG, "Failed to connect in new mode %s", mode);
-        return err;
-    }
-
-    ESP_LOGI(TAG, "Successfully switched to %s mode.", mode);
     return ESP_OK;
 }
-
-void sync_time()
-{
-    esp_netif_sntp_start();
-    ESP_LOGI(TAG, "SNTP service started, waiting for time synchronization...");
-}

main/wifi/wifi_helper.c

@@ -0,0 +1,160 @@
+//
+// Created by shinys on 25. 9. 1.
+//
+
+#include <time.h>
+#include "esp_log.h"
+#include "esp_sntp.h"
+#include "priv_wifi.h"
+#include "wifi.h"
+
+static const char* TAG = "WIFI_HELPER";
+
+const char* auth_mode_str(wifi_auth_mode_t mode)
+{
+    switch (mode)
+    {
+    case WIFI_AUTH_OPEN:
+        return "OPEN";
+    case WIFI_AUTH_WEP:
+        return "WEP";
+    case WIFI_AUTH_WPA_PSK:
+        return "WPA_PSK";
+    case WIFI_AUTH_WPA2_PSK:
+        return "WPA2_PSK";
+    case WIFI_AUTH_WPA_WPA2_PSK:
+        return "WPA_WPA2_PSK";
+    case WIFI_AUTH_ENTERPRISE:
+        return "ENTERPRISE";
+    case WIFI_AUTH_WPA3_PSK:
+        return "WPA3_PSK";
+    case WIFI_AUTH_WPA2_WPA3_PSK:
+        return "WPA2_WPA3_PSK";
+    case WIFI_AUTH_WAPI_PSK:
+        return "WAPI_PSK";
+    case WIFI_AUTH_OWE:
+        return "OWE";
+    case WIFI_AUTH_WPA3_ENT_192:
+        return "WPA3_ENT_192";
+    case WIFI_AUTH_WPA3_EXT_PSK:
+        return "WPA3_EXT_PSK";
+    case WIFI_AUTH_WPA3_EXT_PSK_MIXED_MODE:
+        return "WPA3_EXT_PSK_MIXED_MODE";
+    case WIFI_AUTH_DPP:
+        return "DPP";
+    case WIFI_AUTH_WPA3_ENTERPRISE:
+        return "WPA3_ENTERPRISE";
+    case WIFI_AUTH_WPA2_WPA3_ENTERPRISE:
+        return "WPA2_WPA3_ENTERPRISE";
+    default:
+        return "UNKNOWN";
+    }
+}
+
+const char* wifi_reason_str(wifi_err_reason_t reason)
+{
+    switch (reason)
+    {
+    case WIFI_REASON_UNSPECIFIED:
+        return "UNSPECIFIED";
+    case WIFI_REASON_AUTH_EXPIRE:
+        return "AUTH_EXPIRE";
+    case WIFI_REASON_AUTH_LEAVE:
+        return "AUTH_LEAVE";
+    case WIFI_REASON_ASSOC_EXPIRE:
+        return "ASSOC_EXPIRE";
+    case WIFI_REASON_ASSOC_TOOMANY:
+        return "ASSOC_TOOMANY";
+    case WIFI_REASON_NOT_AUTHED:
+        return "NOT_AUTHED";
+    case WIFI_REASON_NOT_ASSOCED:
+        return "NOT_ASSOCED";
+    case WIFI_REASON_ASSOC_LEAVE:
+        return "ASSOC_LEAVE";
+    case WIFI_REASON_ASSOC_NOT_AUTHED:
+        return "ASSOC_NOT_AUTHED";
+    case WIFI_REASON_DISASSOC_PWRCAP_BAD:
+        return "DISASSOC_PWRCAP_BAD";
+    case WIFI_REASON_DISASSOC_SUPCHAN_BAD:
+        return "DISASSOC_SUPCHAN_BAD";
+    case WIFI_REASON_IE_INVALID:
+        return "IE_INVALID";
+    case WIFI_REASON_MIC_FAILURE:
+        return "MIC_FAILURE";
+    case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT:
+        return "4WAY_HANDSHAKE_TIMEOUT";
+    case WIFI_REASON_GROUP_KEY_UPDATE_TIMEOUT:
+        return "GROUP_KEY_UPDATE_TIMEOUT";
+    case WIFI_REASON_IE_IN_4WAY_DIFFERS:
+        return "IE_IN_4WAY_DIFFERS";
+    case WIFI_REASON_GROUP_CIPHER_INVALID:
+        return "GROUP_CIPHER_INVALID";
+    case WIFI_REASON_PAIRWISE_CIPHER_INVALID:
+        return "PAIRWISE_CIPHER_INVALID";
+    case WIFI_REASON_AKMP_INVALID:
+        return "AKMP_INVALID";
+    case WIFI_REASON_UNSUPP_RSN_IE_VERSION:
+        return "UNSUPP_RSN_IE_VERSION";
+    case WIFI_REASON_INVALID_RSN_IE_CAP:
+        return "INVALID_RSN_IE_CAP";
+    case WIFI_REASON_802_1X_AUTH_FAILED:
+        return "802_1X_AUTH_FAILED";
+    case WIFI_REASON_CIPHER_SUITE_REJECTED:
+        return "CIPHER_SUITE_REJECTED";
+    case WIFI_REASON_INVALID_PMKID:
+        return "INVALID_PMKID";
+    case WIFI_REASON_BEACON_TIMEOUT:
+        return "BEACON_TIMEOUT";
+    case WIFI_REASON_NO_AP_FOUND:
+        return "NO_AP_FOUND";
+    case WIFI_REASON_AUTH_FAIL:
+        return "AUTH_FAIL";
+    case WIFI_REASON_ASSOC_FAIL:
+        return "ASSOC_FAIL";
+    case WIFI_REASON_HANDSHAKE_TIMEOUT:
+        return "HANDSHAKE_TIMEOUT";
+    case WIFI_REASON_CONNECTION_FAIL:
+        return "CONNECTION_FAIL";
+    case WIFI_REASON_AP_TSF_RESET:
+        return "AP_TSF_RESET";
+    case WIFI_REASON_ROAMING:
+        return "ROAMING";
+    default:
+        return "UNKNOWN";
+    }
+}
+
+// Callback function for time synchronization
+void time_sync_notification_cb(struct timeval* tv)
+{
+    ESP_LOGI(TAG, "Time synchronized");
+    // Set timezone to UTC
+    setenv("TZ", "UTC", 1);
+    tzset();
+
+    char strftime_buf[64];
+    time_t now;
+    struct tm timeinfo;
+    time(&now);
+    localtime_r(&now, &timeinfo);
+    strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
+    ESP_LOGI(TAG, "The current date/time in UTC is: %s", strftime_buf);
+}
+
+void initialize_sntp(void)
+{
+    ESP_LOGI(TAG, "Initializing SNTP service");
+    esp_sntp_setoperatingmode(SNTP_OPMODE_POLL);
+    esp_sntp_setservername(0, "pool.ntp.org");
+    sntp_set_time_sync_notification_cb(time_sync_notification_cb);
+}
+
+void sync_time()
+{
+    if (esp_sntp_enabled())
+    {
+        esp_sntp_stop();
+    }
+    ESP_LOGI(TAG, "Starting SNTP synchronization");
+    esp_sntp_init();
+}

page/index.html

@@ -2,13 +2,39 @@
 <html lang="en" data-bs-theme="light">
 <head>
     <meta charset="UTF-8">
-    <title>ODROID Remote</title>
+    <title>ODROID PowerMate</title>
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <script type="module" src="/src/main.js"></script>
 </head>
 <body>
 
-<main class="container">
+<div id="login-container" class="d-flex flex-column justify-content-center align-items-center vh-100" style="display: none;">
+    <div class="card p-4 shadow-lg" style="width: 100%; max-width: 400px;">
+        <div class="card-body">
+            <h2 class="card-title text-center mb-4">Login to ODROID Power Mate</h2>
+            <div id="login-alert" class="alert alert-danger d-none" role="alert"></div>
+            <form id="login-form">
+                <div class="mb-3">
+                    <label for="username" class="form-label">Username</label>
+                    <input type="text" class="form-control" id="username" required>
+                </div>
+                <div class="mb-3">
+                    <label for="password" class="form-label">Password</label>
+                    <input type="password" class="form-control" id="password" required>
+                </div>
+                <div class="d-grid">
+                    <button type="submit" class="btn btn-primary">Login</button>
+                </div>
+            </form>
+            <div class="form-check form-switch d-flex justify-content-center mt-4">
+                <input class="form-check-input" type="checkbox" role="switch" id="theme-toggle-login">
+                <label class="form-check-label ms-2" for="theme-toggle-login"><i id="theme-icon-login" class="bi bi-moon-stars-fill"></i></label>
+            </div>
+        </div>
+    </div>
+</div>
+
+<main class="container" style="display: none;">
     <header class="d-flex justify-content-between align-items-center mb-3 main-header">
         <div class="order-md-1" style="flex: 1;">
             <div class="d-flex align-items-center">
@@ -27,7 +53,10 @@
                 <span id="power-display" class="text-primary">--.-- W</span>
             </div>
         </div>
-        <h1 class="text-primary text-center order-md-2 mx-auto">ODROID Power Mate</h1>
+        <div class="text-center order-md-2 mx-auto">
+            <h1 class="text-primary mb-0">ODROID Power Mate</h1>
+            <small class="text-muted" id="version-info"></small>
+        </div>
         <div class="d-flex align-items-center justify-content-end order-md-3 header-controls" style="flex: 1;">
             <div class="form-check form-switch">
                 <input class="form-check-input" type="checkbox" role="switch" id="theme-toggle">
@@ -37,6 +66,9 @@
                     data-bs-target="#settingsModal">
                 <i class="bi bi-gear"></i>
             </button>
+            <button class="btn btn-outline-secondary ms-3" id="logout-button">
+                <i class="bi bi-box-arrow-right"></i>
+            </button>
         </div>
     </header>
 
@@ -71,7 +103,7 @@
                     <div class="mt-4">
                         <ul class="list-group">
                             <li class="list-group-item d-flex justify-content-between align-items-center control-list-item">
-                                Main Power (12V)
+                                Main Power
                                 <div class="control-wrapper">
                                     <div class="form-check form-switch">
                                         <input class="form-check-input" type="checkbox" role="switch" id="main-power-toggle">
@@ -79,7 +111,7 @@
                                 </div>
                             </li>
                             <li class="list-group-item d-flex justify-content-between align-items-center control-list-item">
-                                USB Power (5V)
+                                USB Power
                                 <div class="control-wrapper">
                                     <div class="form-check form-switch">
                                         <input class="form-check-input" type="checkbox" role="switch" id="usb-power-toggle">
@@ -109,9 +141,11 @@
             <div class="card border-top-0 rounded-0 rounded-bottom">
                 <div class="card-body">
                     <div class="d-flex justify-content-end mb-3">
-                        <a href="/datalog.csv" class="btn btn-primary" download="datalog.csv"><i class="bi bi-download me-1"></i> Download CSV</a>
+                        <button id="record-button" class="btn btn-success me-2"><i class="bi bi-record-circle me-1"></i>Record</button>
+                        <button id="stop-button" class="btn btn-danger me-2" style="display: none;"><i class="bi bi-stop-circle me-1"></i>Stop</button>
+                        <button id="download-csv-button" class="btn btn-primary" style="display: none;"><i class="bi bi-download me-1"></i>Download CSV</button>
                     </div>
-                    <h5 class="card-title text-center mb-3">Power Input</h5>
+                    <h5 class="card-title text-center mb-3">Power Metrics</h5>
                     <div class="row">
                         <div class="col-md-4 mb-3 mb-md-0">
                             <canvas id="powerChart" class="chart-canvas"></canvas>
@@ -130,8 +164,8 @@
 </main>
 
 <footer class="bg-body-tertiary text-center p-3">
-    <a href="https://www.hardkernel.com/" target="_blank" class="link-secondary">Hardkernel</a> |
-    <a href="https://wiki.odroid.com/start" target="_blank" class="link-secondary">Wiki</a>
+    <a href="https://www.hardkernel.com/" target="_blank" class="link-secondary text-decoration-none">Hardkernel</a> |
+    <a href="https://wiki.odroid.com/start" target="_blank" class="link-secondary text-decoration-none">Wiki</a>
 </footer>
 
 <!-- Settings Modal -->
@@ -159,6 +193,16 @@
                                 data-bs-target="#ap-mode-settings-pane" type="button" role="tab">AP Mode
                         </button>
                     </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link" data-bs-target="#current-limit-settings-pane" data-bs-toggle="tab"
+                                id="current-limit-settings-tab" role="tab" type="button">Current Limit
+                        </button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link" data-bs-target="#user-settings-pane" data-bs-toggle="tab"
+                                id="user-settings-tab" role="tab" type="button">User Settings
+                        </button>
+                    </li>
                     <li class="nav-item" role="presentation">
                         <button class="nav-link" id="device-settings-tab" data-bs-toggle="tab"
                                 data-bs-target="#device-settings-pane" type="button" role="tab">Device
@@ -251,7 +295,7 @@
                         <div id="ap-mode-config" style="display: none;">
                             <div class="mb-3">
                                 <label for="ap-ssid" class="form-label">AP SSID</label>
-                                <input type="text" class="form-control" id="ap-ssid" placeholder="ODROID-Remote-AP">
+                                <input type="text" class="form-control" id="ap-ssid" placeholder="powermate">
                             </div>
                             <div class="mb-3">
                                 <label for="ap-password" class="form-label">AP Password</label>
@@ -260,11 +304,63 @@
                         </div>
                         <div class="d-flex justify-content-end pt-3 border-top mt-3">
                             <button type="button" class="btn btn-primary me-2" id="ap-mode-apply-button">Apply</button>
+                            <button class="btn btn-secondary" data-bs-dismiss="modal" type="button">Close</button>
+                        </div>
+                    </div>
+                    <div class="tab-pane fade" id="current-limit-settings-pane" role="tabpanel">
+                        <div class="alert alert-info mt-3" role="alert">
+                            <i class="bi bi-info-circle-fill me-2"></i>
+                            Set a value of <strong>0.0</strong> to disable a specific current limit. The value will be
+                            rounded to one decimal place.
+                        </div>
+                        <div class="mb-4">
+                            <label class="form-label" for="vin-current-limit-slider">VIN Current Limit: <span
+                                    class="fw-bold text-primary" id="vin-current-limit-value">...</span> A</label>
+                            <input class="form-range" id="vin-current-limit-slider" max="8.0" min="0" step="0.1"
+                                   type="range">
+                        </div>
+                        <div class="mb-4">
+                            <label class="form-label" for="main-current-limit-slider">Main Current Limit: <span
+                                    class="fw-bold text-primary" id="main-current-limit-value">...</span> A</label>
+                            <input class="form-range" id="main-current-limit-slider" max="7.5" min="0" step="0.1"
+                                   type="range">
+                        </div>
+                        <div class="mb-4">
+                            <label class="form-label" for="usb-current-limit-slider">USB Current Limit: <span
+                                    class="fw-bold text-primary" id="usb-current-limit-value">...</span> A</label>
+                            <input class="form-range" id="usb-current-limit-slider" max="4.5" min="0" step="0.1"
+                                   type="range">
+                        </div>
+                        <div class="d-flex justify-content-end pt-3 border-top mt-3">
+                            <button class="btn btn-primary me-2" id="current-limit-apply-button" type="button">Apply
+                            </button>
                             <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
                         </div>
                     </div>
+                    <div class="tab-pane fade" id="user-settings-pane" role="tabpanel">
+                        <form id="user-settings-form">
+                            <div class="mb-3">
+                                <label class="form-label" for="new-username">New Username</label>
+                                <input class="form-control" id="new-username" required type="text">
+                            </div>
+                            <div class="mb-3">
+                                <label class="form-label" for="new-password">New Password</label>
+                                <input class="form-control" id="new-password" required type="password">
+                            </div>
+                            <div class="mb-3">
+                                <label class="form-label" for="confirm-password">Confirm New Password</label>
+                                <input class="form-control" id="confirm-password" required type="password">
+                            </div>
+                            <div class="d-flex justify-content-end pt-3 border-top mt-3">
+                                <button class="btn btn-primary me-2" id="user-settings-apply-button" type="submit">
+                                    Apply
+                                </button>
+                                <button class="btn btn-secondary" data-bs-dismiss="modal" type="button">Close</button>
+                            </div>
+                        </form>
+                    </div>
                     <div class="tab-pane fade" id="device-settings-pane" role="tabpanel">
-                        <div class="mb-3">
+                        <div class="mb-3 p-3 border rounded">
                             <label for="baud-rate-select" class="form-label">UART Baud Rate</label>
                             <select class="form-select" id="baud-rate-select">
                                 <option value="9600">9600</option>
@@ -277,9 +373,24 @@
                                 <option value="921600">921600</option>
                                 <option value="1500000" selected>1500000</option>
                             </select>
+                            <div class="d-flex justify-content-end mt-2">
+                                <button type="button" class="btn btn-primary btn-sm" id="baud-rate-apply-button">Apply</button>
+                            </div>
+                        </div>
+                        <div class="mb-3 p-3 border rounded">
+                            <label for="period-slider" class="form-label">Sensor Period: <span class="fw-bold text-primary" id="period-value">...</span> ms</label>
+                            <input type="range" class="form-range" id="period-slider" min="500" max="5000" step="100">
+                            <div class="d-flex justify-content-end mt-2">
+                                <button type="button" class="btn btn-primary btn-sm" id="period-apply-button">Apply</button>
+                            </div>
+                        </div>
+                        <hr>
+                        <div class="mb-3">
+                            <label class="form-label">System Reboot</label>
+                            <p class="text-muted small">This will restart the device. The reboot will occur after 3 seconds.</p>
+                            <button type="button" class="btn btn-danger" id="reboot-button">Reboot Now</button>
                         </div>
                         <div class="d-flex justify-content-end pt-3 border-top mt-3">
-                            <button type="button" class="btn btn-primary me-2" id="baud-rate-apply-button">Apply</button>
                             <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
                         </div>
                     </div>
@@ -304,7 +415,7 @@
                 </div>
                 <div class="mb-3">
                     <label for="wifi-password-connect" class="form-label">Password</label>
-                    <input type="password" class="form-control" id="wifi-password-connect">
+                    <input type="password" class="form-control" id="wifi-password-connect" placeholder="Leave blank for open network">
                 </div>
             </div>
             <div class="modal-footer">
@@ -314,6 +425,5 @@
         </div>
     </div>
 </div>
-
 </body>
 </html>

page/package-lock.json

@@ -12,14 +12,62 @@
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         "bootstrap": "^5.3.3",
         "bootstrap-icons": "^1.11.3",
-        "chart.js": "^4.4.3"
+        "chart.js": "^4.4.3",
+        "protobufjs": "^7.5.4"
       },
       "devDependencies": {
+        "protobufjs-cli": "^1.1.2",
         "vite": "^7.0.4",
         "vite-plugin-compression": "^0.5.1",
         "vite-plugin-singlefile": "^2.0.1"
       }
     },
+    "node_modules/@babel/helper-string-parser": {
+      "version": "7.27.1",
+      "resolved": "https://registry.npmjs.org/@babel/helper-string-parser/-/helper-string-parser-7.27.1.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-validator-identifier": {
+      "version": "7.27.1",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.27.1.tgz",
+      "integrity": "sha512-D2hP9eA+Sqx1kBZgzxZh0y1trbuU+JoDkiEwqhQ36nodYqJwyEIhPSdMNd7lOm/4io72luTPWH20Yda0xOuUow==",
+      "dev": true,
+      "engines": {
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+      }
+    },
+    "node_modules/@babel/parser": {
+      "version": "7.28.3",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.28.3.tgz",
+      "integrity": "sha512-7+Ey1mAgYqFAx2h0RuoxcQT5+MlG3GTV0TQrgr7/ZliKsm/MNDxVVutlWaziMq7wJNAz8MTqz55XLpWvva6StA==",
+      "dev": true,
+      "dependencies": {
+        "@babel/types": "^7.28.2"
+      },
+      "bin": {
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+      },
+      "engines": {
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+    },
+    "node_modules/@babel/types": {
+      "version": "7.28.2",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.28.2.tgz",
+      "integrity": "sha512-ruv7Ae4J5dUYULmeXw1gmb7rYRz57OWCPM57pHojnLq/3Z1CK2lNSLTCVjxVk1F/TZHwOZZrOWi0ur95BbLxNQ==",
+      "dev": true,
+      "dependencies": {
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+        "@babel/helper-validator-identifier": "^7.27.1"
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+      "engines": {
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@@ -436,6 +484,18 @@
         "node": ">=18"
       }
     },
+    "node_modules/@jsdoc/salty": {
+      "version": "0.2.9",
+      "resolved": "https://registry.npmjs.org/@jsdoc/salty/-/salty-0.2.9.tgz",
+      "integrity": "sha512-yYxMVH7Dqw6nO0d5NIV8OQWnitU8k6vXH8NtgqAfIa/IUqRMxRv/NUJJ08VEKbAakwxlgBl5PJdrU0dMPStsnw==",
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     "node_modules/@kurkle/color": {
       "version": "0.3.4",
       "resolved": "https://registry.npmjs.org/@kurkle/color/-/color-0.3.4.tgz",
@@ -451,6 +511,60 @@
         "url": "https://opencollective.com/popperjs"
       }
     },
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+      "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz",
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+    "node_modules/@protobufjs/base64": {
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+      "resolved": "https://registry.npmjs.org/@protobufjs/base64/-/base64-1.1.2.tgz",
+      "integrity": "sha512-AZkcAA5vnN/v4PDqKyMR5lx7hZttPDgClv83E//FMNhR2TMcLUhfRUBHCmSl0oi9zMgDDqRUJkSxO3wm85+XLg=="
+    },
+    "node_modules/@protobufjs/codegen": {
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+      "resolved": "https://registry.npmjs.org/@protobufjs/codegen/-/codegen-2.0.4.tgz",
+      "integrity": "sha512-YyFaikqM5sH0ziFZCN3xDC7zeGaB/d0IUb9CATugHWbd1FRFwWwt4ld4OYMPWu5a3Xe01mGAULCdqhMlPl29Jg=="
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+    "node_modules/@protobufjs/eventemitter": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/eventemitter/-/eventemitter-1.1.0.tgz",
+      "integrity": "sha512-j9ednRT81vYJ9OfVuXG6ERSTdEL1xVsNgqpkxMsbIabzSo3goCjDIveeGv5d03om39ML71RdmrGNjG5SReBP/Q=="
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+    "node_modules/@protobufjs/fetch": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/fetch/-/fetch-1.1.0.tgz",
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+    "node_modules/@protobufjs/float": {
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+      "resolved": "https://registry.npmjs.org/@protobufjs/float/-/float-1.0.2.tgz",
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+      "resolved": "https://registry.npmjs.org/@protobufjs/path/-/path-1.1.2.tgz",
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+      "resolved": "https://registry.npmjs.org/@protobufjs/pool/-/pool-1.1.0.tgz",
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+    },
+    "node_modules/@protobufjs/utf8": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/utf8/-/utf8-1.1.0.tgz",
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+    "node_modules/@types/linkify-it": {
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+      "dev": true,
+      "dependencies": {
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+        "@types/mdurl": "^2"
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+      "resolved": "https://registry.npmjs.org/@types/mdurl/-/mdurl-2.0.0.tgz",
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+      "version": "24.3.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.3.0.tgz",
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+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.15.0.tgz",
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+      "dev": true,
+      "bin": {
+        "acorn": "bin/acorn"
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+      }
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+    "node_modules/acorn-jsx": {
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+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz",
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+      "dev": true,
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@@ -745,6 +910,24 @@
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+      "dev": true
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@@ -778,6 +961,15 @@
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@@ -790,6 +982,18 @@
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@@ -852,6 +1056,24 @@
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+      "version": "0.2.5",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.5.tgz",
+      "integrity": "sha512-voyz6MApa1rQGUxT3E+BK7/ROe8itEx7vD8/HEvt4xwXucvQ5G5oeEiHkmHZJuBO21RpOf+YYm9MOivj709jow==",
+      "dev": true,
+      "engines": {
+        "node": ">=14.14"
+      }
+    },
     "node_modules/to-regex-range": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
@@ -1166,6 +1842,47 @@
         "node": ">=8.0"
       }
     },
+    "node_modules/type-check": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
+      "integrity": "sha512-ZCmOJdvOWDBYJlzAoFkC+Q0+bUyEOS1ltgp1MGU03fqHG+dbi9tBFU2Rd9QKiDZFAYrhPh2JUf7rZRIuHRKtOg==",
+      "dev": true,
+      "dependencies": {
+        "prelude-ls": "~1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/uc.micro": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-2.1.0.tgz",
+      "integrity": "sha512-ARDJmphmdvUk6Glw7y9DQ2bFkKBHwQHLi2lsaH6PPmz/Ka9sFOBsBluozhDltWmnv9u/cF6Rt87znRTPV+yp/A==",
+      "dev": true
+    },
+    "node_modules/uglify-js": {
+      "version": "3.19.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.19.3.tgz",
+      "integrity": "sha512-v3Xu+yuwBXisp6QYTcH4UbH+xYJXqnq2m/LtQVWKWzYc1iehYnLixoQDN9FH6/j9/oybfd6W9Ghwkl8+UMKTKQ==",
+      "dev": true,
+      "bin": {
+        "uglifyjs": "bin/uglifyjs"
+      },
+      "engines": {
+        "node": ">=0.8.0"
+      }
+    },
+    "node_modules/underscore": {
+      "version": "1.13.7",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.7.tgz",
+      "integrity": "sha512-GMXzWtsc57XAtguZgaQViUOzs0KTkk8ojr3/xAxXLITqf/3EMwxC0inyETfDFjH/Krbhuep0HNbbjI9i/q3F3g==",
+      "dev": true
+    },
+    "node_modules/undici-types": {
+      "version": "7.10.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.10.0.tgz",
+      "integrity": "sha512-t5Fy/nfn+14LuOc2KNYg75vZqClpAiqscVvMygNnlsHBFpSXdJaYtXMcdNLpl/Qvc3P2cB3s6lOV51nqsFq4ag=="
+    },
     "node_modules/universalify": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.1.tgz",
@@ -1278,6 +1995,27 @@
         "rollup": "^4.44.1",
         "vite": "^5.4.11 || ^6.0.0 || ^7.0.0"
       }
+    },
+    "node_modules/word-wrap": {
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
+      "integrity": "sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "dev": true
+    },
+    "node_modules/xmlcreate": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/xmlcreate/-/xmlcreate-2.0.4.tgz",
+      "integrity": "sha512-nquOebG4sngPmGPICTS5EnxqhKbCmz5Ox5hsszI2T6U5qdrJizBc+0ilYSEjTSzU0yZcmvppztXe/5Al5fUwdg==",
+      "dev": true
     }
   }
 }

page/package.json

@@ -4,20 +4,23 @@
   "version": "0.0.0",
   "type": "module",
   "scripts": {
-    "dev": "vite",
-    "build": "vite build",
-    "preview": "vite preview"
+    "dev": "npm run build:proto && vite",
+    "build": "npm run build:proto && vite build",
+    "preview": "vite preview",
+    "build:proto": "pbjs -t static-module -w es6 -o src/proto.js ../proto/status.proto"
   },
   "devDependencies": {
+    "protobufjs-cli": "^1.1.2",
     "vite": "^7.0.4",
-    "vite-plugin-singlefile": "^2.0.1",
-    "vite-plugin-compression": "^0.5.1"
+    "vite-plugin-compression": "^0.5.1",
+    "vite-plugin-singlefile": "^2.0.1"
   },
   "dependencies": {
+    "@xterm/addon-fit": "^0.9.0",
     "@xterm/xterm": "^5.5.0",
     "bootstrap": "^5.3.3",
     "bootstrap-icons": "^1.11.3",
-    "@xterm/addon-fit": "^0.9.0",
-    "chart.js": "^4.4.3"
+    "chart.js": "^4.4.3",
+    "protobufjs": "^7.5.4"
   }
 }

page/src/api.js

@@ -4,15 +4,63 @@
  * It abstracts the fetch logic, error handling, and JSON parsing for network and control operations.
  */
 
+// Function to get authentication headers
+export function getAuthHeaders() {
+    const token = localStorage.getItem('authToken');
+    if (token) {
+        return { 'Authorization': `Bearer ${token}` };
+    }
+    return {};
+}
+
+// Global error handler for unauthorized responses
+export async function handleResponse(response) {
+    if (response.status === 401) {
+        // Unauthorized, log out the user
+        localStorage.removeItem('authToken');
+        // Redirect to login or trigger a logout event
+        // For now, we'll just reload the page, which will trigger the login screen
+        window.location.reload();
+        throw new Error('Unauthorized: Session expired or invalid token.');
+    }
+    if (!response.ok) {
+        const errorText = await response.text();
+        throw new Error(errorText || `HTTP error! status: ${response.status}`);
+    }
+    return response;
+}
+
+/**
+ * Authenticates a user with the provided username and password.
+ * @param {string} username The user's username.
+ * @param {string} password The user's password.
+ * @returns {Promise<Object>} A promise that resolves to the server's JSON response containing a token.
+ * @throws {Error} Throws an error if the authentication fails.
+ */
+export async function login(username, password) {
+    const response = await fetch('/login', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({ username, password }),
+    });
+    // Login function does not use handleResponse as it's for obtaining the token
+    if (!response.ok) {
+        const errorText = await response.text();
+        throw new Error(errorText || `Login failed with status: ${response.status}`);
+    }
+    return await response.json();
+}
+
 /**
  * Fetches the list of available Wi-Fi networks from the server.
  * @returns {Promise<Array<Object>>} A promise that resolves to an array of Wi-Fi access point objects.
  * @throws {Error} Throws an error if the network request fails.
  */
 export async function fetchWifiScan() {
-    const response = await fetch('/api/wifi/scan');
-    if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
-    return await response.json();
+    const response = await fetch('/api/wifi/scan', {
+        headers: getAuthHeaders(),
+    });
+    return await handleResponse(response).then(res => res.json());
 }
 
 /**
@@ -23,16 +71,15 @@ export async function fetchWifiScan() {
  * @throws {Error} Throws an error if the connection request fails.
  */
 export async function postWifiConnect(ssid, password) {
-    const response = await fetch('/api/setting', { // Updated URL
+    const response = await fetch('/api/setting', {
         method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ ssid, password }),
+        headers: {
+            'Content-Type': 'application/json',
+            ...getAuthHeaders(),
+        },
+        body: JSON.stringify({ssid, password}),
     });
-    if (!response.ok) {
-        const errorText = await response.text();
-        throw new Error(errorText || `Connection failed with status: ${response.status}`);
-    }
-    return await response.json();
+    return await handleResponse(response).then(res => res.json());
 }
 
 /**
@@ -42,35 +89,49 @@ export async function postWifiConnect(ssid, password) {
  * @throws {Error} Throws an error if the request fails.
  */
 export async function postNetworkSettings(payload) {
-    const response = await fetch('/api/setting', { // Updated URL
+    const response = await fetch('/api/setting', {
         method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
+        headers: {
+            'Content-Type': 'application/json',
+            ...getAuthHeaders(),
+        },
         body: JSON.stringify(payload),
     });
-    if (!response.ok) {
-        const errorText = await response.text();
-        throw new Error(errorText || `Failed to apply settings with status: ${response.status}`);
-    }
-    return response;
+    return await handleResponse(response);
 }
 
 /**
  * Posts the selected UART baud rate to the server.
  * @param {string} baudrate The selected baud rate.
  * @returns {Promise<Response>} A promise that resolves to the raw fetch response.
- * @throws {Error} Throws an error if the request fails.
  */
 export async function postBaudRateSetting(baudrate) {
     const response = await fetch('/api/setting', {
         method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
+        headers: {
+            'Content-Type': 'application/json',
+            ...getAuthHeaders(),
+        },
         body: JSON.stringify({ baudrate }),
     });
-    if (!response.ok) {
-        const errorText = await response.text();
-        throw new Error(errorText || `Failed to apply baudrate with status: ${response.status}`);
-    }
-    return response;
+    return await handleResponse(response);
+}
+
+/**
+ * Posts the selected sensor period to the server.
+ * @param {string} period The selected period in milliseconds.
+ * @returns {Promise<Response>} A promise that resolves to the raw fetch response.
+ */
+export async function postPeriodSetting(period) {
+    const response = await fetch('/api/setting', {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+            ...getAuthHeaders(),
+        },
+        body: JSON.stringify({ period }),
+    });
+    return await handleResponse(response);
 }
 
 /**
@@ -79,9 +140,10 @@ export async function postBaudRateSetting(baudrate) {
  * @throws {Error} Throws an error if the network request fails.
  */
 export async function fetchSettings() {
-    const response = await fetch('/api/setting'); // Updated URL
-    if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
-    return await response.json();
+    const response = await fetch('/api/setting', {
+        headers: getAuthHeaders(),
+    });
+    return await handleResponse(response).then(res => res.json());
 }
 
 /**
@@ -90,9 +152,10 @@ export async function fetchSettings() {
  * @throws {Error} Throws an error if the network request fails.
  */
 export async function fetchControlStatus() {
-    const response = await fetch('/api/control');
-    if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
-    return await response.json();
+    const response = await fetch('/api/control', {
+        headers: getAuthHeaders(),
+    });
+    return await handleResponse(response).then(res => res.json());
 }
 
 /**
@@ -104,9 +167,42 @@ export async function fetchControlStatus() {
 export async function postControlCommand(command) {
     const response = await fetch('/api/control', {
         method: 'POST',
-        headers: {'Content-Type': 'application/json'},
+        headers: {
+            'Content-Type': 'application/json',
+            ...getAuthHeaders(),
+        },
         body: JSON.stringify(command)
     });
-    if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
-    return response;
+    return await handleResponse(response);
+}
+
+/**
+ * Fetches the firmware version from the server.
+ * @returns {Promise<Object>} A promise that resolves to an object containing the version.
+ * @throws {Error} Throws an error if the network request fails.
+ */
+export async function fetchVersion() {
+    const response = await fetch('/api/version', {
+        headers: getAuthHeaders(),
+    });
+    return await handleResponse(response).then(res => res.json());
+}
+
+/**
+ * Updates the user's username and password on the server.
+ * @param {string} newUsername The new username.
+ * @param {string} newPassword The new password.
+ * @returns {Promise<Object>} A promise that resolves to the server's JSON response.
+ * @throws {Error} Throws an error if the update fails.
+ */
+export async function updateUserSettings(newUsername, newPassword) {
+    const response = await fetch('/api/setting', {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+            ...getAuthHeaders(),
+        },
+        body: JSON.stringify({new_username: newUsername, new_password: newPassword}),
+    });
+    return await handleResponse(response).then(res => res.json());
 }

page/src/chart.js

@@ -4,8 +4,8 @@
  * It handles initialization, theme updates, data updates, and resizing for the three separate charts.
  */
 
-import { Chart, registerables } from 'chart.js';
-import { powerChartCtx, voltageChartCtx, currentChartCtx, htmlEl, graphTabPane } from './dom.js';
+import {Chart, registerables} from 'chart.js';
+import {currentChartCtx, graphTabPane, htmlEl, powerChartCtx, voltageChartCtx} from './dom.js';
 
 // Register all necessary Chart.js components
 Chart.register(...registerables);
@@ -17,6 +17,14 @@ export const charts = {
     current: null
 };
 
+// Configuration for dynamic, step-wise Y-axis scaling
+const scaleConfig = {
+    power: {steps: [5, 20, 50, 160]},   // in Watts
+    voltage: {steps: [5, 10, 15, 25]},    // in Volts
+    current: {steps: [1, 2.5, 5, 10]}     // in Amps
+};
+
+const channelKeys = ['USB', 'MAIN', 'VIN'];
 const CHART_DATA_POINTS = 30; // Number of data points to display on the chart
 
 /**
@@ -38,92 +46,82 @@ function initialData() {
 /**
  * Creates a common configuration object for a single line chart.
  * @param {string} title - The title of the chart (e.g., 'Power (W)').
- * @param {number} minValue - The minimum value for Y-axis.
- * @param {number} maxValue - The maximum value for Y-axis.
  * @returns {Object} A Chart.js options object.
  */
-function createChartOptions(title, minValue, maxValue) {
+function createChartOptions(title) {
     return {
         responsive: true,
         maintainAspectRatio: false,
-        interaction: { mode: 'index', intersect: false },
+        interaction: {mode: 'index', intersect: false},
         plugins: {
-            legend: { position: 'top' },
-            title: { display: true, text: title }
+            legend: {position: 'top'},
+            title: {display: true, text: title}
         },
         scales: {
-            x: { ticks: { autoSkipPadding: 10, maxRotation: 0, minRotation: 0 } },
-            y: { 
-                min: minValue,
-                max: maxValue,
-                beginAtZero: false,
-                ticks: {
-                    stepSize: (maxValue - minValue) / 8
-                }
+            x: {ticks: {autoSkipPadding: 10, maxRotation: 0, minRotation: 0}},
+            y: {
+                min: 0,
+                beginAtZero: true,
+                ticks: {}
             }
         }
     };
 }
 
+/**
+ * Creates the dataset objects for a chart.
+ * @param {string} unit - The unit for the dataset label (e.g., 'W', 'V', 'A').
+ * @returns {Array<Object>} An array of Chart.js dataset objects.
+ */
+function createDatasets(unit) {
+    return channelKeys.map(channel => ({
+        label: `${channel} (${unit})`,
+        data: initialData(),
+        borderWidth: 2,
+        fill: false,
+        tension: 0.2,
+        pointRadius: 0
+    }));
+}
+
+/**
+ * Initializes a single chart with its specific configuration.
+ * @param {CanvasRenderingContext2D} context - The canvas context for the chart.
+ * @param {string} title - The chart title.
+ * @param {string} metric - The metric key ('power', 'voltage', 'current').
+ * @param {string} unit - The data unit ('W', 'V', 'A').
+ * @returns {Chart} A new Chart.js instance.
+ */
+function initializeSingleChart(context, title, metric, unit) {
+    if (!context) return null;
+
+    const options = createChartOptions(title);
+    const initialMax = scaleConfig[metric].steps[0];
+    options.scales.y.max = initialMax;
+    options.scales.y.ticks.stepSize = initialMax / 5; // Initial step size
+
+    return new Chart(context, {
+        type: 'line',
+        data: {labels: initialLabels(), datasets: createDatasets(unit)},
+        options: options
+    });
+}
+
 /**
  * Initializes all three charts (Power, Voltage, Current).
  * If chart instances already exist, they are destroyed and new ones are created.
  */
 export function initCharts() {
     // Destroy existing charts if they exist
-    for (const key in charts) {
+    Object.keys(charts).forEach(key => {
         if (charts[key]) {
             charts[key].destroy();
         }
-    }
+    });
 
-    // Create Power Chart
-    if (powerChartCtx) {
-        const powerOptions = createChartOptions('Power', 0, 120);
-        charts.power = new Chart(powerChartCtx, {
-            type: 'line',
-            data: {
-                labels: initialLabels(),
-                datasets: [
-                    { label: 'Power (W)', data: initialData(), borderWidth: 2, fill: false, tension: 0.2, pointRadius: 2 },
-                    { label: 'Avg Power', data: initialData(), borderWidth: 1.5, borderDash: [10, 5], fill: false, tension: 0, pointRadius: 0 }
-                ]
-            },
-            options: powerOptions
-        });
-    }
-
-    // Create Voltage Chart
-    if (voltageChartCtx) {
-        const voltageOptions = createChartOptions('Voltage', 0, 24);
-        charts.voltage = new Chart(voltageChartCtx, {
-            type: 'line',
-            data: {
-                labels: initialLabels(),
-                datasets: [
-                    { label: 'Voltage (V)', data: initialData(), borderWidth: 2, fill: false, tension: 0.2, pointRadius: 2 },
-                    { label: 'Avg Voltage', data: initialData(), borderWidth: 1.5, borderDash: [10, 5], fill: false, tension: 0, pointRadius: 0 }
-                ]
-            },
-            options: voltageOptions
-        });
-    }
-
-    // Create Current Chart
-    if (currentChartCtx) {
-        const currentOptions = createChartOptions('Current', 0, 7);
-        charts.current = new Chart(currentChartCtx, {
-            type: 'line',
-            data: {
-                labels: initialLabels(),
-                datasets: [
-                    { label: 'Current (A)', data: initialData(), borderWidth: 2, fill: false, tension: 0.2, pointRadius: 2 },
-                    { label: 'Avg Current', data: initialData(), borderWidth: 1.5, borderDash: [10, 5], fill: false, tension: 0, pointRadius: 0 }
-                ]
-            },
-            options: currentOptions
-        });
-    }
+    charts.power = initializeSingleChart(powerChartCtx, 'Power', 'power', 'W');
+    charts.voltage = initializeSingleChart(voltageChartCtx, 'Voltage', 'voltage', 'V');
+    charts.current = initializeSingleChart(currentChartCtx, 'Current', 'current', 'A');
 }
 
 /**
@@ -135,11 +133,13 @@ export function applyChartsTheme(themeName) {
     const gridColor = isDark ? 'rgba(255, 255, 255, 0.1)' : 'rgba(0, 0, 0, 0.1)';
     const labelColor = isDark ? '#dee2e6' : '#212529';
 
-    const powerColor = getComputedStyle(htmlEl).getPropertyValue('--chart-power-color');
-    const voltageColor = getComputedStyle(htmlEl).getPropertyValue('--chart-voltage-color');
-    const currentColor = getComputedStyle(htmlEl).getPropertyValue('--chart-current-color');
+    const channelColors = [
+        getComputedStyle(htmlEl).getPropertyValue('--chart-usb-color').trim() || '#0d6efd',
+        getComputedStyle(htmlEl).getPropertyValue('--chart-main-color').trim() || '#198754',
+        getComputedStyle(htmlEl).getPropertyValue('--chart-vin-color').trim() || '#dc3545'
+    ];
 
-    const updateThemeForChart = (chart, color) => {
+    const updateThemeForChart = (chart) => {
         if (!chart) return;
         chart.options.scales.x.grid.color = gridColor;
         chart.options.scales.y.grid.color = gridColor;
@@ -147,64 +147,89 @@ export function applyChartsTheme(themeName) {
         chart.options.scales.y.ticks.color = labelColor;
         chart.options.plugins.legend.labels.color = labelColor;
         chart.options.plugins.title.color = labelColor;
-        chart.data.datasets[0].borderColor = color;
-        chart.data.datasets[1].borderColor = color;
-        chart.data.datasets[1].borderDash = [10, 5];
+
+        chart.data.datasets.forEach((dataset, index) => {
+            dataset.borderColor = channelColors[index];
+        });
+
         chart.update('none');
     };
 
-    updateThemeForChart(charts.power, powerColor);
-    updateThemeForChart(charts.voltage, voltageColor);
-    updateThemeForChart(charts.current, currentColor);
+    Object.values(charts).forEach(updateThemeForChart);
 }
 
+/**
+ * Updates a single chart with new data and dynamically adjusts its Y-axis scale.
+ * @param {Chart} chart - The Chart.js instance to update.
+ * @param {string} metric - The metric key (e.g., 'power', 'voltage').
+ * @param {Object} data - The new sensor data object.
+ * @param {string} timeLabel - The timestamp label for the new data point.
+ */
+function updateSingleChart(chart, metric, data, timeLabel) {
+    if (!chart) return;
+
+    // Shift old data and push new data
+    chart.data.labels.shift();
+    chart.data.labels.push(timeLabel);
+    chart.data.datasets.forEach((dataset, index) => {
+        dataset.data.shift();
+        const channel = channelKeys[index];
+        const value = data[channel]?.[metric];
+        dataset.data.push(value !== undefined ? value.toFixed(2) : null);
+    });
+
+    // --- DYNAMIC STEP-WISE Y-AXIS SCALING ---
+    const config = scaleConfig[metric];
+    if (config?.steps) {
+        const allData = chart.data.datasets
+            .flatMap(dataset => dataset.data)
+            .filter(v => v !== null)
+            .map(v => parseFloat(v));
+
+        const maxDataValue = allData.length > 0 ? Math.max(...allData) : 0;
+
+        // Find the smallest step that is >= maxDataValue
+        let newMax = config.steps.find(step => maxDataValue <= step);
+
+        // If value exceeds all steps, use the largest step. If no data, use the smallest.
+        if (newMax === undefined) {
+            newMax = config.steps[config.steps.length - 1];
+        }
+
+        if (chart.options.scales.y.max !== newMax) {
+            chart.options.scales.y.max = newMax;
+            // Dynamically adjust stepSize for clearer grid lines
+            chart.options.scales.y.ticks.stepSize = newMax / 5;
+        }
+    }
+    // --- END DYNAMIC SCALING ---
+
+    // Update chart only if its tab is visible for performance.
+    if (graphTabPane.classList.contains('show')) {
+        chart.update('none');
+    }
+}
+
+
 /**
  * Updates all charts with new sensor data.
  * @param {Object} data - The new sensor data object from the WebSocket.
  */
 export function updateCharts(data) {
-    const timeLabel = new Date(data.timestamp * 1000).toLocaleTimeString();
+    const timeLabel = new Date(data.timestamp).toLocaleTimeString();
 
-    const updateSingleChart = (chart, value) => {
-        if (!chart) return;
-
-        // Shift old data
-        chart.data.labels.shift();
-        chart.data.datasets.forEach(dataset => dataset.data.shift());
-
-        // Push new data
-        chart.data.labels.push(timeLabel);
-        chart.data.datasets[0].data.push(value.toFixed(2));
-
-        // Calculate average
-        const dataArray = chart.data.datasets[0].data.filter(v => v !== null).map(v => parseFloat(v));
-        if (dataArray.length > 0) {
-            const sum = dataArray.reduce((acc, val) => acc + val, 0);
-            const avg = (sum / dataArray.length).toFixed(2);
-            chart.data.datasets[1].data.push(avg);
-
-        } else {
-            chart.data.datasets[1].data.push(null);
-        }
-
-        // Only update the chart if the tab is visible
-        if (graphTabPane.classList.contains('show')) {
-            chart.update('none');
-        }
-    };
-
-    updateSingleChart(charts.power, data.power);
-    updateSingleChart(charts.voltage, data.voltage);
-    updateSingleChart(charts.current, data.current);
+    updateSingleChart(charts.power, 'power', data, timeLabel);
+    updateSingleChart(charts.voltage, 'voltage', data, timeLabel);
+    updateSingleChart(charts.current, 'current', data, timeLabel);
 }
 
 /**
  * Resizes all chart canvases. This is typically called on window resize events.
  */
 export function resizeCharts() {
-    for (const key in charts) {
-        if (charts[key]) {
-            charts[key].resize();
+    Object.values(charts).forEach(chart => {
+        if (chart) {
+            chart.resize();
         }
-    }
+    });
 }

page/src/dom.js

@@ -76,3 +76,19 @@ export const apPasswordInput = document.getElementById('ap-password');
 // --- Device Settings Elements ---
 export const baudRateSelect = document.getElementById('baud-rate-select');
 export const baudRateApplyButton = document.getElementById('baud-rate-apply-button');
+export const periodSlider = document.getElementById('period-slider');
+export const periodValue = document.getElementById('period-value');
+export const periodApplyButton = document.getElementById('period-apply-button');
+export const rebootButton = document.getElementById('reboot-button');
+
+// --- Current Limit Settings Elements ---
+export const vinSlider = document.getElementById('vin-current-limit-slider');
+export const vinValueSpan = document.getElementById('vin-current-limit-value');
+export const mainSlider = document.getElementById('main-current-limit-slider');
+export const mainValueSpan = document.getElementById('main-current-limit-value');
+export const usbSlider = document.getElementById('usb-current-limit-slider');
+export const usbValueSpan = document.getElementById('usb-current-limit-value');
+export const currentLimitApplyButton = document.getElementById('current-limit-apply-button');
+
+// --- Footer ---
+export const versionInfo = document.getElementById('version-info');

page/src/events.js

@@ -7,23 +7,59 @@
 
 import * as dom from './dom.js';
 import * as api from './api.js';
+import {getAuthHeaders, handleResponse} from './api.js'; // Import auth functions
 import * as ui from './ui.js';
-import { clearTerminal, fitTerminal, downloadTerminalOutput } from './terminal.js';
-import { debounce, isMobile } from './utils.js';
+import {clearTerminal, downloadTerminalOutput, fitTerminal} from './terminal.js';
+import {debounce, isMobile} from './utils.js';
 
 // A flag to track if charts have been initialized
 let chartsInitialized = false;
+let listenersAttached = false;
+
+// --- Helper functions for settings ---
+
+function updateSliderValue(slider, span) {
+    if (!slider || !span) return;
+    let value = parseFloat(slider.value).toFixed(1);
+    if (value <= 0) {
+        span.textContent = 'Disabled';
+    } else {
+        span.textContent = `${value} A`;
+    }
+}
+
+function loadCurrentLimitSettings() {
+    fetch('/api/setting', {
+        headers: getAuthHeaders(), // Add auth headers
+    })
+        .then(handleResponse) // Handle response for 401
+        .then(response => response.json())
+        .then(data => {
+            if (data.vin_current_limit !== undefined) {
+                dom.vinSlider.value = data.vin_current_limit;
+                updateSliderValue(dom.vinSlider, dom.vinValueSpan);
+            }
+            if (data.main_current_limit !== undefined) {
+                dom.mainSlider.value = data.main_current_limit;
+                updateSliderValue(dom.mainSlider, dom.mainValueSpan);
+            }
+            if (data.usb_current_limit !== undefined) {
+                dom.usbSlider.value = data.usb_current_limit;
+                updateSliderValue(dom.usbSlider, dom.usbValueSpan);
+            }
+        })
+        .catch(error => console.error('Error fetching current limit settings:', error));
+}
 
 /**
  * Sets up all event listeners for the application's interactive elements.
+ * This function is now idempotent and will only attach listeners once.
  */
 export function setupEventListeners() {
-    // --- Theme Toggle ---
-    dom.themeToggle.addEventListener('change', () => {
-        const newTheme = dom.themeToggle.checked ? 'dark' : 'light';
-        localStorage.setItem('theme', newTheme);
-        ui.applyTheme(newTheme);
-    });
+    if (listenersAttached) {
+        console.log("Event listeners already attached. Skipping.");
+        return;
+    }
 
     // --- Terminal Controls ---
     dom.clearButton.addEventListener('click', clearTerminal);
@@ -41,6 +77,68 @@ export function setupEventListeners() {
     dom.networkApplyButton.addEventListener('click', ui.applyNetworkSettings);
     dom.apModeApplyButton.addEventListener('click', ui.applyApModeSettings);
     dom.baudRateApplyButton.addEventListener('click', ui.applyBaudRateSettings);
+    dom.periodApplyButton.addEventListener('click', ui.applyPeriodSettings);
+
+    // --- Device Settings (Reboot & Period Slider) ---
+    if (dom.rebootButton) {
+        dom.rebootButton.addEventListener('click', () => {
+            if (confirm('Are you sure you want to reboot the device?')) {
+                fetch('/api/reboot', {
+                    method: 'POST',
+                    headers: getAuthHeaders(), // Add auth headers
+                })
+                    .then(handleResponse) // Handle response for 401
+                    .then(response => response.json())
+                    .then(data => {
+                        console.log('Reboot command sent:', data);
+                        ui.hideSettingsModal();
+                        alert('Reboot command sent. The device will restart in 3 seconds.');
+                    })
+                    .catch(error => {
+                        console.error('Error sending reboot command:', error);
+                        alert('Failed to send reboot command.');
+                    });
+            }
+        });
+    }
+
+    if (dom.periodSlider) {
+        dom.periodSlider.addEventListener('input', () => {
+            dom.periodValue.textContent = dom.periodSlider.value;
+        });
+    }
+
+    // --- Current Limit Settings ---
+    dom.vinSlider.addEventListener('input', () => updateSliderValue(dom.vinSlider, dom.vinValueSpan));
+    dom.mainSlider.addEventListener('input', () => updateSliderValue(dom.mainSlider, dom.mainValueSpan));
+    dom.usbSlider.addEventListener('input', () => updateSliderValue(dom.usbSlider, dom.usbValueSpan));
+
+    dom.currentLimitApplyButton.addEventListener('click', () => {
+        const settings = {
+            vin_current_limit: parseFloat(dom.vinSlider.value),
+            main_current_limit: parseFloat(dom.mainSlider.value),
+            usb_current_limit: parseFloat(dom.usbSlider.value)
+        };
+
+        fetch('/api/setting', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                ...getAuthHeaders(), // Add auth headers
+            },
+            body: JSON.stringify(settings),
+        })
+            .then(handleResponse) // Handle response for 401
+            .then(response => response.json())
+            .then(data => {
+                console.log('Current limit settings applied:', data);
+            })
+            .catch((error) => {
+                console.error('Error applying current limit settings:', error);
+                alert('Failed to apply current limit settings.');
+            });
+    });
+
 
     // --- Settings Modal Toggles (for showing/hiding sections) ---
     dom.apModeToggle.addEventListener('change', () => {
@@ -54,7 +152,12 @@ export function setupEventListeners() {
     // --- General App Listeners ---
     dom.settingsButton.addEventListener('click', ui.initializeSettings);
 
-    // --- Accessibility: Remove focus from modal elements before hiding ---
+    // --- Accessibility & Modal Events ---
+    dom.settingsModal.addEventListener('show.bs.modal', () => {
+        // Load settings when the modal is about to be shown
+        loadCurrentLimitSettings();
+    });
+
     const blurActiveElement = () => {
         if (document.activeElement && typeof document.activeElement.blur === 'function') {
             document.activeElement.blur();
@@ -90,4 +193,6 @@ export function setupEventListeners() {
     // --- Window Resize Event ---
     // Debounced to avoid excessive calls during resizing.
     window.addEventListener('resize', debounce(ui.handleResize, 150));
+
+    listenersAttached = true;
 }

page/src/main.js

@@ -10,100 +10,367 @@ import 'bootstrap/dist/css/bootstrap.min.css';
 import 'bootstrap-icons/font/bootstrap-icons.css';
 import './style.css';
 
-// --- Module Imports ---
-import { initWebSocket } from './websocket.js';
-import { setupTerminal, term } from './terminal.js';
+// --- Module Imports -- -
+import {StatusMessage} from './proto.js';
+import * as api from './api.js';
+import {initWebSocket} from './websocket.js';
+import {setupTerminal, term} from './terminal.js';
 import {
     applyTheme,
     initUI,
     updateControlStatus,
     updateSensorUI,
-    updateWifiStatusUI,
-    updateWebsocketStatus
+    updateSwitchStatusUI,
+    updateUptimeUI,
+    updateVersionUI,
+    updateWebsocketStatus,
+    updateWifiStatusUI
 } from './ui.js';
-import { setupEventListeners } from './events.js';
+import {setupEventListeners} from './events.js';
+
+// --- Globals ---
+// StatusMessage is imported directly from the generated proto.js file.
+let isRecording = false;
+let recordedData = [];
+
+// --- DOM Elements ---
+const loginContainer = document.getElementById('login-container');
+const mainContent = document.querySelector('main.container');
+const loginForm = document.getElementById('login-form');
+const usernameInput = document.getElementById('username');
+const passwordInput = document.getElementById('password');
+const loginAlert = document.getElementById('login-alert');
+const logoutButton = document.getElementById('logout-button');
+const themeToggleLogin = document.getElementById('theme-toggle-login');
+const themeIconLogin = document.getElementById('theme-icon-login');
+const themeToggleMain = document.getElementById('theme-toggle');
+const themeIconMain = document.getElementById('theme-icon');
+
+// User Settings DOM Elements
+const userSettingsForm = document.getElementById('user-settings-form');
+const newUsernameInput = document.getElementById('new-username');
+const newPasswordInput = document.getElementById('new-password');
+const confirmPasswordInput = document.getElementById('confirm-password');
+
+// Metrics Tab DOM Elements
+const recordButton = document.getElementById('record-button');
+const stopButton = document.getElementById('stop-button');
+const downloadCsvButton = document.getElementById('download-csv-button');
+
 
 // --- WebSocket Event Handlers ---
 
-/**
- * Callback function for when the WebSocket connection is successfully opened.
- * Updates the UI to show an 'Online' status and fetches the initial control status.
- */
 function onWsOpen() {
     updateWebsocketStatus(true);
-    if (term) {
-        term.write('\x1b[32mConnected to WebSocket Server\x1b[0m\r\n');
-    }
-    updateControlStatus();
+    console.log('Connected to WebSocket Server');
 }
 
-/**
- * Callback function for when the WebSocket connection is closed.
- * Updates the UI to show an 'Offline' status and attempts to reconnect after a delay.
- */
 function onWsClose() {
     updateWebsocketStatus(false);
-    if (term) {
-        term.write('\r\n\x1b[31mConnection closed. Reconnecting...\x1b[0m\r\n');
-    }
-    // Attempt to re-establish the connection after 2 seconds
-    setTimeout(initialize, 2000);
+    console.warn('Connection closed. Reconnecting...');
+    setTimeout(connect, 2000);
 }
 
 /**
- * Callback function for when a message is received from the WebSocket server.
- * It handles both JSON messages (for sensor and status updates) and binary data (for the terminal).
+ * Callback for when a message is received from the WebSocket server.
  * @param {MessageEvent} event - The WebSocket message event.
  */
 function onWsMessage(event) {
-    if (typeof event.data === 'string') {
-        try {
-            const message = JSON.parse(event.data);
-            if (message.type === 'sensor_data') {
-                updateSensorUI(message);
-            } else if (message.type === 'wifi_status') {
-                updateWifiStatusUI(message);
-            }
-        } catch (e) {
-            // Ignore non-JSON string messages
-        }
-    } else if (term && event.data instanceof ArrayBuffer) {
-        // Write raw UART data to the terminal
-        const data = new Uint8Array(event.data);
-        term.write(data);
+    if (!(event.data instanceof ArrayBuffer)) {
+        console.warn('Message is not an ArrayBuffer, skipping protobuf decoding.');
+        return;
     }
+
+    const buffer = new Uint8Array(event.data);
+    try {
+        const decodedMessage = StatusMessage.decode(buffer);
+        const payloadType = decodedMessage.payload;
+
+        switch (payloadType) {
+            case 'sensorData': {
+                const sensorData = decodedMessage.sensorData;
+                if (sensorData) {
+                    // Create a payload for the sensor UI (charts and header)
+                    const sensorPayload = {
+                        USB: sensorData.usb,
+                        MAIN: sensorData.main,
+                        VIN: sensorData.vin,
+                        timestamp: sensorData.timestampMs,
+                        uptime: sensorData.uptimeMs
+                    };
+                    updateSensorUI(sensorPayload);
+
+                    if (isRecording) {
+                        recordedData.push(sensorPayload);
+                    }
+
+                    // Update uptime separately from the sensor data payload
+                    if (sensorData.uptimeMs !== undefined) {
+                        updateUptimeUI(sensorData.uptimeMs / 1000);
+                    }
+                }
+                break;
+            }
+
+            case 'wifiStatus':
+                updateWifiStatusUI(decodedMessage.wifiStatus);
+                break;
+
+            case 'swStatus':
+                if (decodedMessage.swStatus) {
+                    updateSwitchStatusUI(decodedMessage.swStatus);
+                }
+                break;
+
+            case 'uartData':
+                if (term && decodedMessage.uartData && decodedMessage.uartData.data) {
+                    term.write(decodedMessage.uartData.data);
+                }
+                break;
+
+            default:
+                if (payloadType !== undefined) {
+                    console.warn('Received message with unknown or empty payload type:', payloadType);
+                }
+                break;
+        }
+    } catch (e) {
+        console.error('Error decoding protobuf message:', e);
+    }
+}
+
+// --- Authentication Functions ---
+
+function checkAuth() {
+    const token = localStorage.getItem('authToken');
+    if (token) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+async function handleLogin(event) {
+    event.preventDefault();
+    const username = usernameInput.value;
+    const password = passwordInput.value;
+
+    try {
+        const response = await api.login(username, password);
+        if (response && response.token) {
+            localStorage.setItem('authToken', response.token);
+            loginAlert.classList.add('d-none');
+            loginContainer.style.setProperty('display', 'none', 'important');
+            initializeMainAppContent(); // After successful login, initialize the main app
+        } else {
+            loginAlert.textContent = 'Login failed: No token received.';
+            loginAlert.classList.remove('d-none');
+        }
+    } catch (error) {
+        console.error('Login error:', error);
+        loginAlert.textContent = `Login failed: ${error.message}`;
+        loginAlert.classList.remove('d-none');
+    }
+}
+
+function handleLogout() {
+    localStorage.removeItem('authToken');
+    // Hide main content and show login form
+    loginContainer.style.setProperty('display', 'flex', 'important');
+    mainContent.style.setProperty('display', 'none', 'important');
+    // Optionally, disconnect WebSocket or perform other cleanup
+    // For now, just hide the main content.
+}
+
+// --- User Settings Functions ---
+async function handleUserSettingsSubmit(event) {
+    event.preventDefault();
+
+    const newUsername = newUsernameInput.value;
+    const newPassword = newPasswordInput.value;
+    const confirmPassword = confirmPasswordInput.value;
+
+    if (!newUsername || !newPassword || !confirmPassword) {
+        alert('Please fill in all fields for username and password.');
+        return;
+    }
+
+    if (newPassword !== confirmPassword) {
+        alert('New password and confirm password do not match.');
+        return;
+    }
+
+    try {
+        const response = await api.updateUserSettings(newUsername, newPassword);
+        if (response && response.status === 'user_credentials_updated') {
+            alert('Username and password updated successfully. Please log in again with new credentials.');
+            handleLogout(); // Force logout to re-authenticate with new credentials
+        } else {
+            alert(`Failed to update credentials: ${response.message || 'Unknown error'}`);
+        }
+    } catch (error) {
+        console.error('Error updating user settings:', error);
+        alert(`Error updating user settings: ${error.message}`);
+    }
+}
+
+// --- Theme Toggle Functions ---
+function setupThemeToggles() {
+    // Initialize theme for login page
+    const savedTheme = localStorage.getItem('theme') || (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light');
+    applyTheme(savedTheme);
+    themeToggleLogin.checked = savedTheme === 'dark';
+    themeIconLogin.className = savedTheme === 'dark' ? 'bi bi-moon-stars-fill' : 'bi bi-sun-fill';
+
+    // Sync main theme toggle with login theme toggle (initial state)
+    themeToggleMain.checked = savedTheme === 'dark';
+    themeIconMain.className = savedTheme === 'dark' ? 'bi bi-moon-stars-fill' : 'bi bi-sun-fill';
+
+    themeToggleLogin.addEventListener('change', () => {
+        const newTheme = themeToggleLogin.checked ? 'dark' : 'light';
+        applyTheme(newTheme);
+        localStorage.setItem('theme', newTheme);
+        themeIconLogin.className = newTheme === 'dark' ? 'bi bi-moon-stars-fill' : 'bi bi-sun-fill';
+        themeToggleMain.checked = themeToggleLogin.checked; // Keep main toggle in sync
+        themeIconMain.className = themeIconLogin.className; // Keep main icon in sync
+    });
+
+    themeToggleMain.addEventListener('change', () => {
+        const newTheme = themeToggleMain.checked ? 'dark' : 'light';
+        applyTheme(newTheme);
+        localStorage.setItem('theme', newTheme);
+        themeIconMain.className = newTheme === 'dark' ? 'bi bi-moon-stars-fill' : 'bi bi-sun-fill';
+        themeToggleLogin.checked = themeToggleMain.checked; // Keep login toggle in sync
+        themeIconLogin.className = themeIconMain.className; // Keep login icon in sync
+    });
+}
+
+// --- Recording and Downloading Functions ---
+
+function startRecording() {
+    isRecording = true;
+    recordedData = [];
+    recordButton.style.display = 'none';
+    stopButton.style.display = 'inline-block';
+    downloadCsvButton.style.display = 'none';
+    console.log('Recording started.');
+}
+
+function stopRecording() {
+    isRecording = false;
+    recordButton.style.display = 'inline-block';
+    stopButton.style.display = 'none';
+    if (recordedData.length > 0) {
+        downloadCsvButton.style.display = 'inline-block';
+    }
+    console.log('Recording stopped. Data points captured:', recordedData.length);
+}
+
+function downloadCSV() {
+    if (recordedData.length === 0) {
+        alert('No data to download.');
+        return;
+    }
+
+    const headers = [
+        'timestamp', 'uptime_ms',
+        'vin_voltage', 'vin_current', 'vin_power',
+        'main_voltage', 'main_current', 'main_power',
+        'usb_voltage', 'usb_current', 'usb_power'
+    ];
+    const csvRows = [headers.join(',')];
+
+    recordedData.forEach(data => {
+        const timestamp = new Date(data.timestamp).toISOString();
+        const row = [
+            timestamp,
+            data.uptime,
+            Number(data.VIN.voltage).toFixed(3), Number(data.VIN.current).toFixed(3), Number(data.VIN.power).toFixed(3),
+            Number(data.MAIN.voltage).toFixed(3), Number(data.MAIN.current).toFixed(3), Number(data.MAIN.power).toFixed(3),
+            Number(data.USB.voltage).toFixed(3), Number(data.USB.current).toFixed(3), Number(data.USB.power).toFixed(3)
+        ];
+        csvRows.push(row.join(','));
+    });
+
+    const blob = new Blob([csvRows.join('\n')], { type: 'text/csv;charset=utf-8;' });
+    const link = document.createElement('a');
+    const url = URL.createObjectURL(blob);
+    
+    const now = new Date();
+    const pad = (num) => num.toString().padStart(2, '0');
+    const datePart = `${now.getFullYear().toString().slice(-2)}-${pad(now.getMonth() + 1)}-${pad(now.getDate())}`;
+    const timePart = `${pad(now.getHours())}-${pad(now.getMinutes())}`;
+    const filename = `powermate_${datePart}_${timePart}.csv`;
+
+    link.setAttribute('href', url);
+    link.setAttribute('download', filename);
+    link.style.visibility = 'hidden';
+    document.body.appendChild(link);
+    link.click();
+    document.body.removeChild(link);
 }
 
 // --- Application Initialization ---
 
-/**
- * Initializes the entire application.
- * This function sets up the UI, theme, terminal, chart, WebSocket connection, and event listeners.
- */
-function initialize() {
-    // Initialize basic UI components
+async function initializeVersion() {
+    try {
+        const versionData = await api.fetchVersion();
+        if (versionData && versionData.version) {
+            updateVersionUI(versionData.version);
+        }
+    } catch (error) {
+        console.error('Error fetching version:', error);
+        updateVersionUI('N/A');
+    }
+}
+
+function connect() {
+    updateControlStatus();
+    initWebSocket({ onOpen: onWsOpen, onClose: onWsClose, onMessage: onWsMessage });
+}
+
+// New function to initialize main app content after successful login or on initial load if authenticated
+function initializeMainAppContent() {
+    loginContainer.style.setProperty('display', 'none', 'important');
+    mainContent.style.setProperty('display', 'block', 'important');
+
     initUI();
-
-    // Set up the interactive components first
     setupTerminal();
+    initializeVersion();
+    setupEventListeners(); // Attach main app event listeners
+    logoutButton.addEventListener('click', handleLogout); // Attach logout listener
+    
+    // Attach listeners for recording/downloading
+    recordButton.addEventListener('click', startRecording);
+    stopButton.addEventListener('click', stopRecording);
+    downloadCsvButton.addEventListener('click', downloadCSV);
 
-    // Apply the saved theme or detect the user's preferred theme.
-    // This must be done AFTER the chart and terminal are initialized.
-    const savedTheme = localStorage.getItem('theme') || (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light');
-    applyTheme(savedTheme);
+    connect();
 
-    // Establish the WebSocket connection with the defined handlers
-    initWebSocket({
-        onOpen: onWsOpen,
-        onClose: onWsClose,
-        onMessage: onWsMessage
-    });
+    // Attach user settings form listener
+    if (userSettingsForm) {
+        userSettingsForm.addEventListener('submit', handleUserSettingsSubmit);
+    }
+}
 
-    // Attach all event listeners to the DOM elements
-    setupEventListeners();
+function initialize() {
+    setupThemeToggles(); // Setup theme toggles for both login and main (initial sync)
+
+    // Always attach login form listener
+    loginForm.addEventListener('submit', handleLogin);
+
+    if (!checkAuth()) { // If NOT authenticated
+        // Show login form
+        loginContainer.style.setProperty('display', 'flex', 'important');
+        mainContent.style.setProperty('display', 'none', 'important');
+        console.log('Not authenticated. Login form displayed. Main app content NOT initialized.');
+        return; // IMPORTANT: Stop execution here if not authenticated
+    }
+
+    // If authenticated, initialize main content
+    console.log('Authenticated. Initializing main app content.');
+    initializeMainAppContent();
 }
 
 // --- Start Application ---
-
-// Wait for the DOM to be fully loaded before initializing the application.
 document.addEventListener('DOMContentLoaded', initialize);

page/src/style.css

@@ -1,15 +1,17 @@
 
 :root {
     --bs-body-font-family: 'Courier New', Courier, monospace;
-    --chart-power-color: #007bff;
-    --chart-voltage-color: #28a745;
-    --chart-current-color: #ffc107;
+    /* Chart Channel Colors */
+    --chart-usb-color: #0d6efd; /* Bootstrap Blue */
+    --chart-main-color: #198754; /* Bootstrap Green */
+    --chart-vin-color: #dc3545; /* Bootstrap Red */
 }
 
 [data-bs-theme="dark"] {
-    --chart-power-color: #569cd6;
-    --chart-voltage-color: #4ec9b0;
-    --chart-current-color: #dcdcaa;
+    /* Chart Channel Colors for Dark Theme */
+    --chart-usb-color: #569cd6; /* A lighter blue for dark backgrounds */
+    --chart-main-color: #4ec9b0; /* A teal/cyan for dark backgrounds */
+    --chart-vin-color: #d16969; /* A softer red for dark backgrounds */
 }
 
 body, .card, .modal-content, .list-group-item, .nav-tabs .nav-link {
@@ -112,6 +114,10 @@ footer a {
 
 /* Mobile Optimizations */
 @media (max-width: 767.98px) {
+    #login-container {
+        height: 100%;
+    }
+
     .main-header {
         flex-direction: column;
     }

page/src/terminal.js

@@ -4,12 +4,12 @@
  * theme handling, and data communication with the WebSocket.
  */
 
-import { Terminal } from '@xterm/xterm';
+import {Terminal} from '@xterm/xterm';
 import '@xterm/xterm/css/xterm.css';
-import { FitAddon } from '@xterm/addon-fit';
-import { terminalContainer } from './dom.js';
-import { isMobile } from './utils.js';
-import { websocket, sendWebsocketMessage } from './websocket.js';
+import {FitAddon} from '@xterm/addon-fit';
+import {terminalContainer} from './dom.js';
+import {isMobile} from './utils.js';
+import {sendWebsocketMessage} from './websocket.js';
 
 // Exported terminal instance and addon for global access
 export let term;
@@ -41,7 +41,7 @@ export function setupTerminal() {
     }
 
     fitAddon = new FitAddon();
-    term = new Terminal({ convertEol: true, cursorBlink: true });
+    term = new Terminal({convertEol: true, cursorBlink: true});
     term.loadAddon(fitAddon);
     term.open(terminalContainer);
 
@@ -114,7 +114,7 @@ export function downloadTerminalOutput() {
     }
 
     // Create a blob from the text content
-    const blob = new Blob([fullText], { type: 'text/plain;charset=utf-8' });
+    const blob = new Blob([fullText], {type: 'text/plain;charset=utf-8'});
 
     // Create a link element to trigger the download
     const link = document.createElement('a');

page/src/ui.js

@@ -8,9 +8,9 @@
 import * as bootstrap from 'bootstrap';
 import * as dom from './dom.js';
 import * as api from './api.js';
-import { formatUptime, isMobile } from './utils.js';
-import { applyTerminalTheme, fitTerminal } from './terminal.js';
-import { applyChartsTheme, resizeCharts, updateCharts } from './chart.js';
+import {formatUptime, isMobile} from './utils.js';
+import {applyTerminalTheme, fitTerminal} from './terminal.js';
+import {applyChartsTheme, resizeCharts, updateCharts} from './chart.js';
 
 // Instance of the Bootstrap Modal for Wi-Fi connection
 let wifiModal;
@@ -40,21 +40,49 @@ export function applyTheme(themeName) {
  * @param {Object} data - The sensor data object from the WebSocket.
  */
 export function updateSensorUI(data) {
-    dom.voltageDisplay.textContent = `${data.voltage.toFixed(2)} V`;
-    dom.currentDisplay.textContent = `${data.current.toFixed(2)} A`;
-    dom.powerDisplay.textContent = `${data.power.toFixed(2)} W`;
-    if (data.uptime_sec !== undefined) {
-        dom.uptimeDisplay.textContent = formatUptime(data.uptime_sec);
+    // Display VIN channel data in the header as a primary overview
+    if (data.VIN) {
+        dom.voltageDisplay.textContent = `${data.VIN.voltage.toFixed(2)} V`;
+        dom.currentDisplay.textContent = `${data.VIN.current.toFixed(2)} A`;
+        dom.powerDisplay.textContent = `${data.VIN.power.toFixed(2)} W`;
     }
+
+    // Pass the entire multi-channel data object to the charts
     updateCharts(data);
 }
 
+/**
+ * Updates the system uptime display in the UI.
+ * @param {number} uptimeInSeconds - The system uptime in seconds.
+ */
+export function updateUptimeUI(uptimeInSeconds) {
+    if (uptimeInSeconds !== undefined) {
+        dom.uptimeDisplay.textContent = formatUptime(uptimeInSeconds);
+    }
+}
+
+/**
+ * Updates the power switch toggle states based on WebSocket data.
+ * @param {Object} swStatus - The switch status object from the WebSocket message.
+ */
+export function updateSwitchStatusUI(swStatus) {
+    if (swStatus) {
+        if (swStatus.main !== undefined) {
+            dom.mainPowerToggle.checked = swStatus.main;
+        }
+        if (swStatus.usb !== undefined) {
+            dom.usbPowerToggle.checked = swStatus.usb;
+        }
+    }
+}
+
 /**
  * Updates the Wi-Fi status indicator in the header.
  * @param {Object} data - The Wi-Fi status object from the WebSocket.
  */
 export function updateWifiStatusUI(data) {
     if (data.connected) {
+        // Update header status
         dom.wifiSsidStatus.textContent = data.ssid;
         dom.wifiStatus.title = `Signal Strength: ${data.rssi} dBm`;
         let iconClass = 'bi me-2 ';
@@ -64,12 +92,31 @@ export function updateWifiStatusUI(data) {
         dom.wifiIcon.className = iconClass;
         dom.wifiStatus.classList.replace('text-muted', 'text-success');
         dom.wifiStatus.classList.remove('text-danger');
+
+        // Update settings modal
+        dom.currentWifiSsid.textContent = data.ssid;
+        dom.currentWifiIp.textContent = `IP Address: ${data.ipAddress || 'N/A'}`;
     } else {
+        // Update header status
         dom.wifiSsidStatus.textContent = 'Disconnected';
         dom.wifiStatus.title = '';
         dom.wifiIcon.className = 'bi bi-wifi-off me-2';
         dom.wifiStatus.classList.replace('text-success', 'text-muted');
         dom.wifiStatus.classList.remove('text-danger');
+
+        // Update settings modal
+        dom.currentWifiSsid.textContent = 'Not Connected';
+        dom.currentWifiIp.textContent = 'IP Address: -';
+    }
+}
+
+/**
+ * Updates the version information in the footer.
+ * @param {string} version - The firmware version string.
+ */
+export function updateVersionUI(version) {
+    if (version) {
+        dom.versionInfo.textContent = `${version}`;
     }
 }
 
@@ -109,7 +156,7 @@ export async function scanForWifi() {
                     wifiModal.show();
                     dom.wifiModalEl.addEventListener('shown.bs.modal', () => {
                         dom.wifiPasswordConnectInput.focus();
-                    }, { once: true });
+                    }, {once: true});
                 });
 
                 dom.wifiApList.appendChild(row);
@@ -178,10 +225,10 @@ export async function applyNetworkSettings() {
             return;
         }
 
-        payload = { net_type: 'static', ip, gateway, subnet, dns1 };
+        payload = {net_type: 'static', ip, gateway, subnet, dns1};
         if (dns2) payload.dns2 = dns2;
     } else {
-        payload = { net_type: 'dhcp' };
+        payload = {net_type: 'dhcp'};
     }
 
     try {
@@ -202,7 +249,7 @@ export async function applyNetworkSettings() {
  */
 export async function applyApModeSettings() {
     const mode = dom.apModeToggle.checked ? 'apsta' : 'sta';
-    let payload = { mode };
+    let payload = {mode};
 
     dom.apModeApplyButton.disabled = true;
     dom.apModeApplyButton.innerHTML = `<span class="spinner-border spinner-border-sm" aria-hidden="true"></span> Applying...`;
@@ -254,6 +301,24 @@ export async function applyBaudRateSettings() {
     }
 }
 
+/**
+ * Applies the selected sensor period by sending it to the server.
+ */
+export async function applyPeriodSettings() {
+    const period = dom.periodSlider.value;
+    dom.periodApplyButton.disabled = true;
+    dom.periodApplyButton.innerHTML = `<span class="spinner-border spinner-border-sm" aria-hidden="true"></span> Applying...`;
+
+    try {
+        await api.postPeriodSetting(period);
+    } catch (error) {
+        console.error('Error applying period:', error);
+    } finally {
+        dom.periodApplyButton.disabled = false;
+        dom.periodApplyButton.innerHTML = 'Apply';
+    }
+}
+
 /**
  * Fetches and displays the current network and device settings in the settings modal.
  */
@@ -291,6 +356,10 @@ export async function initializeSettings() {
         if (data.baudrate) {
             dom.baudRateSelect.value = data.baudrate;
         }
+        if (data.period) {
+            dom.periodSlider.value = data.period;
+            dom.periodValue.textContent = data.period;
+        }
 
     } catch (error) {
         console.error('Error initializing settings:', error);

page/src/utils.js

@@ -20,18 +20,19 @@ export function debounce(func, delay) {
 }
 
 /**
- * Formats a duration in total seconds into a human-readable string (e.g., "1d 02:30:15").
+ * Formats a duration in total seconds into a human-readable string (e.g., "2days 02:30:15").
  * @param {number} totalSeconds The total seconds to format.
  * @returns {string} The formatted uptime string.
  */
 export function formatUptime(totalSeconds) {
+    totalSeconds = Math.floor(totalSeconds);
     const days = Math.floor(totalSeconds / 86400);
     const hours = Math.floor((totalSeconds % 86400) / 3600);
     const minutes = Math.floor((totalSeconds % 3600) / 60);
     const seconds = totalSeconds % 60;
     const pad = (num) => String(num).padStart(2, '0');
     const timeString = `${pad(hours)}:${pad(minutes)}:${pad(seconds)}`;
-    return days > 0 ? `${days}d ${timeString}` : timeString;
+    return days > 0 ? `${days}days ${timeString}` : timeString;
 }
 
 /**

page/src/websocket.js

@@ -2,32 +2,116 @@
  * @file websocket.js
  * @description This module handles the WebSocket connection for real-time, two-way
  * communication with the server. It provides functions to initialize the connection
- * and send messages.
+ * and send messages, including a heartbeat mechanism to detect disconnections.
  */
 
 // The WebSocket instance, exported for potential direct access if needed.
 export let websocket;
 
-// The WebSocket server address, derived from the current page's hostname.
-const gateway = `ws://${window.location.hostname}/ws`;
+// The WebSocket server address, derived from the current page's host (hostname + port).
+const baseGateway = `ws://${window.location.host}/ws`;
+
+// Heartbeat related variables
+let pingIntervalId = null;
+let pongTimeoutId = null;
+const HEARTBEAT_INTERVAL = 10000; // 10 seconds: How often to send a 'ping'
+const HEARTBEAT_TIMEOUT = 5000; // 5 seconds: How long to wait for a 'pong' after sending a 'ping'
 
 /**
- * Initializes the WebSocket connection and sets up event handlers.
- * @param {Object} callbacks - An object containing callback functions for WebSocket events.
- * @param {function} callbacks.onOpen - Called when the connection is successfully opened.
- * @param {function} callbacks.onClose - Called when the connection is closed.
- * @param {function} callbacks.onMessage - Called when a message is received from the server.
+ * Starts the heartbeat mechanism.
+ * Sends a 'ping' message to the server at regular intervals and sets a timeout
+ * to detect if a 'pong' response is not received.
  */
-export function initWebSocket({ onOpen, onClose, onMessage }) {
+function startHeartbeat() {
+    stopHeartbeat(); // Ensure any previous heartbeat is stopped before starting a new one
+
+    pingIntervalId = setInterval(() => {
+        if (websocket && websocket.readyState === WebSocket.OPEN) {
+            websocket.send('ping');
+
+            // Set a timeout to check if a pong is received within HEARTBEAT_TIMEOUT
+            pongTimeoutId = setTimeout(() => {
+                console.warn('WebSocket: No pong received within timeout, closing connection.');
+                // If no pong is received, close the connection. This will trigger the onClose handler.
+                websocket.close();
+            }, HEARTBEAT_TIMEOUT);
+        }
+    }, HEARTBEAT_INTERVAL);
+}
+
+/**
+ * Stops the heartbeat mechanism by clearing the ping interval and pong timeout.
+ */
+function stopHeartbeat() {
+    if (pingIntervalId) {
+        clearInterval(pingIntervalId);
+        pingIntervalId = null;
+    }
+    if (pongTimeoutId) {
+        clearTimeout(pongTimeoutId);
+        pongTimeoutId = null;
+    }
+}
+
+/**
+ * Initializes the WebSocket connection and sets up event handlers, including a heartbeat mechanism.
+ * @param {Object} callbacks - An object containing callback functions for WebSocket events.
+ * @param {function} [callbacks.onOpen] - Called when the connection is successfully opened.
+ * @param {function} [callbacks.onClose] - Called when the connection is closed.
+ * @param {function} [callbacks.onMessage] - Called when a message is received from the server (excluding 'pong' messages).
+ * @param {function} [callbacks.onError] - Called when an error occurs with the WebSocket connection.
+ */
+export function initWebSocket({onOpen, onClose, onMessage, onError}) {
+    const token = localStorage.getItem('authToken');
+    let gateway = baseGateway;
+
+    if (token) {
+        gateway = `${baseGateway}?token=${token}`;
+    }
+
     console.log(`Trying to open a WebSocket connection to ${gateway}...`);
     websocket = new WebSocket(gateway);
     // Set binary type to arraybuffer to handle raw binary data from the UART.
     websocket.binaryType = "arraybuffer";
 
-    // Assign event handlers from the provided callbacks
-    if (onOpen) websocket.onopen = onOpen;
-    if (onClose) websocket.onclose = onClose;
-    if (onMessage) websocket.onmessage = onMessage;
+    // Assign event handlers, wrapping user-provided callbacks to include heartbeat logic
+    websocket.onopen = (event) => {
+        console.log('WebSocket connection opened.');
+        startHeartbeat(); // Start heartbeat on successful connection
+        if (onOpen) {
+            onOpen(event);
+        }
+    };
+
+    websocket.onclose = (event) => {
+        console.log('WebSocket connection closed:', event);
+        stopHeartbeat(); // Stop heartbeat when connection closes
+        if (onClose) {
+            onClose(event);
+        }
+    };
+
+    websocket.onmessage = (event) => {
+        if (event.data === 'pong') {
+            // Clear the timeout as pong was received, resetting for the next ping
+            clearTimeout(pongTimeoutId);
+            pongTimeoutId = null;
+        } else {
+            // If it's not a pong message, pass it to the user's onMessage callback
+            if (onMessage) {
+                onMessage(event);
+            } else {
+                console.log('WebSocket message received:', event.data);
+            }
+        }
+    };
+
+    websocket.onerror = (error) => {
+        console.error('WebSocket error:', error);
+        if (onError) {
+            onError(error);
+        }
+    };
 }
 
 /**
@@ -37,5 +121,7 @@ export function initWebSocket({ onOpen, onClose, onMessage }) {
 export function sendWebsocketMessage(data) {
     if (websocket && websocket.readyState === WebSocket.OPEN) {
         websocket.send(data);
+    } else {
+        console.warn('WebSocket is not open. Message not sent:', data);
     }
-}
+}

partitions.csv

@@ -3,4 +3,3 @@
 nvs,data,nvs,0x9000,24K,
 phy_init,data,phy,0xf000,4K,
 factory,app,factory,0x10000,2M,
-littlefs, data, littlefs,   ,1536K,

proto/status.proto

@@ -0,0 +1,46 @@
+syntax = "proto3";
+
+// Represents data for a single sensor channel
+message SensorChannelData {
+  float voltage = 1;
+  float current = 2;
+  float power = 3;
+}
+
+// Contains data for all sensor channels and system info
+message SensorData {
+  SensorChannelData usb = 1;
+  SensorChannelData main = 2;
+  SensorChannelData vin = 3;
+  uint64 timestamp_ms = 4;
+  uint64 uptime_ms = 5;
+}
+
+// Contains WiFi connection status
+message WifiStatus {
+  bool connected = 1;
+  string ssid = 2;
+  int32 rssi = 3;
+  string ip_address = 4;
+}
+
+// Contains raw UART data
+message UartData {
+  bytes data = 1;
+}
+
+// Contains load sw status
+message LoadSwStatus {
+  bool main = 1;
+  bool usb = 2;
+}
+
+// Top-level message for all websocket communication
+message StatusMessage {
+   oneof payload {
+    SensorData sensor_data = 1;
+    WifiStatus wifi_status = 2;
+     LoadSwStatus sw_status = 3;
+     UartData uart_data = 4;
+  }
+}

sdkconfig.defaults

@@ -7,17 +7,23 @@ CONFIG_ESPTOOLPY_FLASHMODE_QIO=y
 CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
 CONFIG_PARTITION_TABLE_CUSTOM=y
 CONFIG_UART_ISR_IN_IRAM=y
+CONFIG_HTTPD_MAX_REQ_HDR_LEN=2048
+CONFIG_HTTPD_MAX_URI_LEN=1024
 CONFIG_HTTPD_WS_SUPPORT=y
+CONFIG_ESP_HTTPS_SERVER_ENABLE=y
+CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG=y
 CONFIG_ESP_WIFI_STATIC_RX_BUFFER_NUM=20
 CONFIG_ESP_WIFI_DYNAMIC_RX_BUFFER_NUM=40
 CONFIG_ESP_WIFI_DYNAMIC_TX_BUFFER_NUM=40
 CONFIG_ESP_WIFI_TX_BA_WIN=32
 CONFIG_ESP_WIFI_RX_BA_WIN=32
 CONFIG_FREERTOS_HZ=500
+CONFIG_LWIP_LOCAL_HOSTNAME="odroid-pm"
 CONFIG_LWIP_TCPIP_CORE_LOCKING=y
 CONFIG_LWIP_TCPIP_CORE_LOCKING_INPUT=y
 CONFIG_LWIP_IRAM_OPTIMIZATION=y
 CONFIG_LWIP_TCPIP_RECVMBOX_SIZE=64
+CONFIG_LWIP_IPV6=n
 CONFIG_LWIP_TCP_SND_BUF_DEFAULT=65534
 CONFIG_LWIP_TCP_WND_DEFAULT=65534
 CONFIG_LWIP_TCP_RECVMBOX_SIZE=64