Remove debug logs from WebSocket ping/pong handlers

Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>
2025-09-26 12:47:45 +09:00
41 changed files with 576 additions and 1908 deletions
--- a/674
+++ b/674
@@ -1,674 +0,0 @@
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 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>.
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,675 +0,0 @@
 # 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>.
--- a/README.md
+++ b/README.md
@@ -77,13 +77,4 @@ sudo apt install nodejs npm nanopb
 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)
--- a/docs/API.md
+++ b/docs/API.md
@@ -0,0 +1,283 @@
 # 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. All server-to-client communication is done via binary WebSocket frames containing Protocol
 Buffers (protobuf) messages.
 **Endpoint**: `/ws`
 ### Server-to-Client Messages
 The server pushes binary messages to the client. Each message is a Protocol Buffers (protobuf) encoded `StatusMessage`.
 This top-level message uses a `oneof` field to carry different payload types.
 The protobuf schema is defined in `proto/status.proto`.
 ```proto
 // Top-level message for all websocket communication
 message StatusMessage {
   oneof payload {
    SensorData sensor_data = 1;
    WifiStatus wifi_status = 2;
    UartData uart_data = 3;
  }
 }
 ```
 The client decodes the `StatusMessage` and then handles the specific payload:
 | `oneof` payload field | Contained Message | Description                                                                             |
 |-----------------------|-------------------|-----------------------------------------------------------------------------------------|
 | `sensor_data`         | `SensorData`      | Pushed periodically (e.g., every second) with the latest power metrics.                 |
 | `wifi_status`         | `WifiStatus`      | Pushed periodically or on change to update the current Wi-Fi connection status.         |
 | `uart_data`           | `UartData`        | Forwards raw binary data from the ODROID's serial (UART) port to the client's terminal. |
 ### Client-to-Server Messages
 The client sends raw binary/text 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**: `(raw 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",
    "vin_current_limit": 8.0,
    "main_current_limit": 7.0,
    "usb_current_limit": 5.0,
    "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.
  - `vin_current_limit` (number): The current limit for VIN in Amps. `0` means disabled.
  - `main_current_limit` (number): The current limit for the Main channel in Amps. `0` means disabled.
  - `usb_current_limit` (number): The current limit for the USB channel in Amps. `0` means disabled.
  - `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)**:
    ```json
    {
      "net_type": "static",
      "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" }
    ```
 - **Action: Configure Current Limits**
  - **Request Body**:
    *Note: You can set one or more limits in a single request. A value of `-1.0` disables the limit.*
    ```json
    {
      "vin_current_limit": 7.5,
      "main_current_limit": 6.0,
      "usb_current_limit": -1.0
    }
    ```
  - **Success Response (200 OK)**: `{"status":"current_limit_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.
--- a/docs/custom.md
+++ b/docs/custom.md
@@ -0,0 +1,66 @@
 # Custom firmware
 If you want, you can create your own custom firmware.
 ## Install Tools
 To build the source code, you need the following packages on Ubuntu 24.04.
 ```bash
 sudo apt install nodejs npm nanopb
 ```
 You need `esp-idf` version 5.4. It might be possible to build with the latest version, but it has not been confirmed.
 First, install the necessary tools for esp-idf.
 ```bash
 sudo apt install git wget flex bison gperf python3 python3-pip python3-venv \
  cmake ninja-build ccache libffi-dev libssl-dev dfu-util libusb-1.0-0 \
 ```
 Next, clone the esp-idf tool.
 ```bash
 mkdir -p ~/esp
 cd ~/esp
 git clone -b release/v5.4 --recursive https://github.com/espressif/esp-idf.git
 ```
 You need to install tools such as a compiler and a debugger.
 ```bash
 cd ~/esp/esp-idf
 ./install.sh esp32c3
 ```
 Please prepare to build the source by running the shell for using esp-idf.
 ```bash
 . $HOME/esp/esp-idf/export.sh
 ```
 ## Build custom firmware based on PowerMate
 First, clone the PowerMate source code.
 ```bash
 git clone https://github.com/shinys000114/odroid-powermate.git
 ```
 After connecting the USB Type-C cable to the PowerMate and the host PC, run the command below to build and update PowerMate.
 ```bash
 cd odroid-powermate
 idf.py app flash monitor
 ```
 ## Create a new project
 Create a project with the command below and create your own firmware.
 ```bash
 idf.py create-project proj
 cd proj
 idf.py set-target esp32c3
 ```
 For a more detailed guide, please refer to the link below.  
 [https://docs.espressif.com/projects/esp-idf/en/release-v5.4/esp32/get-started/linux-macos-setup.html#](https://docs.espressif.com/projects/esp-idf/en/release-v5.4/esp32/get-started/linux-macos-setup.html#)
--- a/docs/img/1000030233.jpg
+++ b/docs/img/1000030233.jpg
--- a/docs/img/1000030234.jpg
+++ b/docs/img/1000030234.jpg
--- a/docs/img/1000030235.jpg
+++ b/docs/img/1000030235.jpg
--- a/docs/img/1000030236.jpg
+++ b/docs/img/1000030236.jpg
--- a/docs/img/1000030237.jpg
+++ b/docs/img/1000030237.jpg
--- a/docs/img/apmode.png
+++ b/docs/img/apmode.png
--- a/docs/img/color.png
+++ b/docs/img/color.png
--- a/docs/img/current.png
+++ b/docs/img/current.png
--- a/docs/img/device.png
+++ b/docs/img/device.png
--- a/docs/img/htop.png
+++ b/docs/img/htop.png
--- a/docs/img/static.png
+++ b/docs/img/static.png
--- a/docs/img/uart.png
+++ b/docs/img/uart.png
--- a/docs/pin.md
+++ b/docs/pin.md
@@ -0,0 +1,52 @@
 # Connector and Pin Header Description
 ## J1 USB-C Connector
 This terminal is for uploading firmware and checking program logs.
 It is recognized as a serial device and as a `ttyACM` device in Linux.
 To view the logs, you can use the command below.
 ```bash
 minicom -D /dev/ttyACM0 -b 115200
 ```
 ## J2 UART Pin header
 Connected to the `U0RXD`, `U0TXD` system UART of the ESP32-C3. Currently not used on this board.
 It can be used as GPIO through appropriate configuration in esp-idf.
 ## J3 ODROID UART Connector
 Connects to the UART debug port of the ODROID.
 This connector is `X8821WRS-04`. you can use the [cable from the USB-UART 2 board](https://www.hardkernel.com/shop/usb-uart-2-module-kit-copy/).
 ## J4 GPIO Output
 4 GPIO output pin headers. Used to trigger the power of external devices.
 | Pin Number | Function           | Function           | Pin Number |
 |------------|--------------------|--------------------|------------|
 | 3          | Reserved           | Reserved           | 1          |
 | 4          | Reset (Open Drain) | Power (Open Drain) | 2          |
 The Reset and Power pins can be used on the ODROID-M series and H series.
 ## J5 DC Input
 Supports 9~21v input. You can use the DC power supply sold by Hardkernel.
 ## J6 DC Out
 Outputs the switched power from the J5 input.
 ## J7 USB Power Out
 Switched 5v voltage output.
 The output is set to 5.25V considering voltage drop. Please use with caution.
 ## J8 OLED Display Connector
 **Reserved**
 SSD1309 OLED Connector
 It cannot be used as GPIO for other purposes because it shares the I2C bus with `PCA9557PW`, `INA3221`.
--- a/docs/schematic.pdf
+++ b/docs/schematic.pdf
--- a/docs/settings.md
+++ b/docs/settings.md
@@ -0,0 +1,77 @@
 # Settings
 > **Warning**
 > Wi-Fi and IP related settings will restart the Wi-Fi service.
 > After applying the settings, you may need to reconnect to the page.
 >
 > Please be careful when applying settings. Incorrect settings may prevent you from connecting to the device.
 > If you have problems with the device settings, connect the debug USB-C connector to check the device's logs.
 > If necessary, you can re-update the firmware to initialize the device.
 ## Connect to Wi-Fi
 The device boots in APSTA mode by default and services the following AP.
 - SSID: powermate
 - Password: hardkernel
 After connecting to the above AP using a smartphone, etc., you can configure the device by accessing the
 `http://192.168.4.1` address.
 > **Warning**
 > A warning that the AP does not have internet may appear. Please press `Allow connection` to connect to the device.
 You can open the settings window by pressing the gear button at the top.
 Press the Scan button to see a list of nearby APs.
 <img src="img/1000030234.jpg" width="300">
 After entering the password, press the Connect button and PowerMate will attempt to connect to the AP.
 For public APs, leave the Password blank.
 <img src="img/1000030235.jpg" width="300">
 <img src="img/1000030236.jpg" width="300">
 When Wi-Fi is connected, the green SSID name appears at the top of the page.
 <img src="img/1000030237.jpg" width="300">
 ## Set static ip
 You can assign the IP of the device yourself.
 You can set the IP directly by turning on the `Use Static IP` toggle in the `Network` tab.
 ![static.png](img/static.png)
 ## AP Mode
 Configure the AP function of PowerMate.
 If you do not need the AP service, it is recommended to disable it.
 ![apmode.png](img/apmode.png)
 ## Current Limit
 Monitors the current of PowerMate, and if a value higher than the set current is detected, all load switches are turned
 off.
 ![current.png](img/current.png)
 ## Device
 Sets the UART Baudrate. Please match it with the baudrate of the connected ODROID.
 | ODROID           | Baud rate                  |
 |------------------|----------------------------|
 | ODROID-C4        | 115200                     |
 | ODROID-C5        | 921600                     |
 | ODROID-M1/M1S/M2 | 1500000                    |
 | ODROID-H3/4      | According to user settings |
 You can reboot the PowerMate. The state of the load switch does not change due to rebooting.
 ![device.png](img/device.png)
--- a/docs/uart.md
+++ b/docs/uart.md
@@ -0,0 +1,24 @@
 # UART Terminal
 > **Warning**
 > Data drop may occur depending on the communication quality.
 ![uart.png](img/uart.png)
 You can see the UART terminal in the Device tab.
 You can specify the baud rate in `Setting > Device`, and the supported baud rates are 9600-1500000.
 ![device.png](img/device.png)
 ## ANSI Color
 Supports the color table of the terminal.
 ```bash
 odroid@server:~$ TERM=xterm-256color /bin/bash
 ```
 ![color.png](img/color.png)
 ![htop.png](img/htop.png)
--- a/example/logger/.gitignore
+++ b/example/logger/.gitignore
@@ -1,5 +0,0 @@
 /.venv/
 /venv/
 status_pb2.py
 test.csv
 plot.png
--- a/example/logger/README.md
+++ b/example/logger/README.md
@@ -1,41 +0,0 @@
 # Power Consumption Logger Example
 Based on this script, you can monitor power consumption and implement graph plotting.
 ## How to Run the Script
 ### Install Python Virtual Environment
 ```shell
 sudo apt install virtualenv
 virtualenv venv
 source venv/bin/activate
 ```
 ### Install require package
 ```shell
 pip install grpcio-tools requests websockets protobuf pandas matplotlib
 ```
 ### Build `status_pb2.py`
 ```shell
 python -m grpc_tools.protoc -I ../../proto --python_out=. status.proto
 ```
 ### Execute script
 #### Power consumption collection
 ```shell
 # python3 logger.py -u <username> -o <name.csv> -p <password> <address>
 python3 logger.py -u admin -p password -o test.csv 192.168.30.5 
 ```
 #### Plot data
 ```shell
 python3 csv_2_plot.py test.csv plot.png [--type power voltage current]
 ```
 ![plot.png](plot.png)
--- a/example/logger/csv_2_plot.py
+++ b/example/logger/csv_2_plot.py
@@ -1,108 +0,0 @@
 import argparse
 import matplotlib.dates as mdates
 import matplotlib.pyplot as plt
 import pandas as pd
 def plot_power_data(csv_path, output_path, plot_types):
    """
    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']).
    """
    try:
        # Read the CSV file into a pandas DataFrame
        # The 'timestamp' column is parsed as dates
        df = pd.read_csv(csv_path, parse_dates=['timestamp'])
        print(f"Successfully loaded {len(df)} records from '{csv_path}'")
    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
    # --- Plotting Configuration ---
    plot_configs = {
        'power': {'title': 'Power Consumption', 'ylabel': 'Power (W)',
                  'cols': ['vin_power', 'main_power', 'usb_power']},
        'voltage': {'title': 'Voltage', 'ylabel': 'Voltage (V)',
                    'cols': ['vin_voltage', 'main_voltage', 'usb_voltage']},
        'current': {'title': 'Current', 'ylabel': 'Current (A)', 'cols': ['vin_current', 'main_current', 'usb_current']}
    }
    channel_labels = ['VIN', 'MAIN', 'USB']
    channel_colors = ['red', 'green', 'blue']
    num_plots = len(plot_types)
    if num_plots == 0:
        print("No plot types selected. Exiting.")
        return
    # Create a figure and a set of subplots based on the number of selected plot types.
    # sharex=True makes all subplots share the same x-axis (time)
    # squeeze=False ensures that 'axes' is always a 2D array, even if num_plots is 1.
    fig, axes = plt.subplots(num_plots, 1, figsize=(15, 6 * num_plots), sharex=True, squeeze=False)
    axes = axes.flatten()  # Flatten the 2D array to 1D for easier iteration
    # --- Loop through selected plot types and generate plots ---
    for i, plot_type in enumerate(plot_types):
        ax = axes[i]
        config = plot_configs[plot_type]
        for j, col_name in enumerate(config['cols']):
            ax.plot(df['timestamp'], df[col_name], label=channel_labels[j], color=channel_colors[j])
        ax.set_title(config['title'])
        ax.set_ylabel(config['ylabel'])
        ax.legend()
        ax.grid(True, which='both', linestyle='--', linewidth=0.5)
    # --- Formatting the x-axis (Time) ---
    # Improve date formatting on the x-axis
    # Apply formatting to the last subplot's x-axis
    last_ax = axes[-1]
    last_ax.xaxis.set_major_formatter(mdates.DateFormatter('%H:%M:%S'))
    last_ax.xaxis.set_major_locator(plt.MaxNLocator(15))  # Limit the number of ticks
    plt.xlabel('Time')
    plt.xticks(rotation=45)
    # Add a main title to the figure
    start_time = df['timestamp'].iloc[0].strftime('%Y-%m-%d %H:%M:%S')
    end_time = df['timestamp'].iloc[-1].strftime('%H:%M:%S')
    fig.suptitle(f'ODROID Power Log ({start_time} to {end_time})', fontsize=16, y=0.95)
    # Adjust layout to prevent titles/labels from overlapping
    plt.tight_layout(rect=[0, 0, 1, 0.94])
    # --- 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."
    )
    args = parser.parse_args()
    plot_power_data(args.input_csv, args.output_image, args.type)
 if __name__ == "__main__":
    main()
--- a/example/logger/logger.py
+++ b/example/logger/logger.py
@@ -1,152 +0,0 @@
 import argparse
 import asyncio
 import csv
 import requests
 import websockets
 from datetime import datetime
 # 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_sec',
                        '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)
                        ts_str = ts_dt.strftime('%Y-%m-%d %H:%M:%S')
                        print(f"--- {ts_str} (Uptime: {sensor_data.uptime_sec}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:
                            row = [
                                ts_dt.isoformat(), sensor_data.uptime_sec,
                                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.")
--- a/example/logger/plot.png
+++ b/example/logger/plot.png
--- a/main/app/odroid-power-mate.c
+++ b/main/app/odroid-power-mate.c
@@ -31,6 +31,8 @@ void app_main(void)
    }
    ESP_ERROR_CHECK(ret);
    storage_init();
    ESP_ERROR_CHECK(esp_netif_init());
    ESP_ERROR_CHECK(esp_event_loop_create_default());
--- a/main/idf_component.yml
+++ b/main/idf_component.yml
@@ -1,5 +1,6 @@
 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
--- a/main/service/dbg_console.c
+++ b/main/service/dbg_console.c
@@ -1,182 +0,0 @@
 #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;
 }
--- a/main/service/dbg_console.h
+++ b/main/service/dbg_console.h
@@ -1,13 +0,0 @@
 #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
--- a/main/service/storage.c
+++ b/main/service/storage.c
@@ -0,0 +1,53 @@
 #include "storage.h"
 #include <stdio.h>
 #include <string.h>
 #include <sys/stat.h>
 #include <unistd.h>
 #include "esp_littlefs.h"
 #include "esp_log.h"
 static const char* TAG = "datalog";
 #define MAX_LOG_SIZE (700 * 1024)
 void storage_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(conf.partition_label, &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);
    }
 }
--- a/main/service/webserver.c
+++ b/main/service/webserver.c
@@ -3,7 +3,6 @@
 #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"
@@ -194,6 +193,4 @@ void start_webserver(void)
    register_version_endpoint(server);
    init_status_monitor();
    initialize_dbg_console();
 }
--- a/main/wifi/priv_wifi.h
+++ b/main/wifi/priv_wifi.h
@@ -8,6 +8,5 @@
 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
--- a/main/wifi/sta.c
+++ b/main/wifi/sta.c
@@ -81,14 +81,6 @@ void wifi_scan_aps(wifi_ap_record_t** ap_records, uint16_t* count)
    *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)
    {
@@ -108,16 +100,6 @@ void wifi_scan_aps(wifi_ap_record_t** ap_records, uint16_t* count)
            }
        }
    }
    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)
--- a/main/wifi/wifi.c
+++ b/main/wifi/wifi.c
@@ -16,13 +16,9 @@
 #include "wifi.h"
 #include "indicator.h"
 static bool s_auto_reconnect = true;
 static const char* TAG = "WIFI";
 void wifi_set_auto_reconnect(bool enable) { s_auto_reconnect = enable; }
 static void wifi_event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data)
 {
    if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_AP_STACONNECTED)
@@ -50,18 +46,10 @@ static void wifi_event_handler(void* arg, esp_event_base_t event_base, int32_t e
    }
    else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED)
    {
-        led_set(LED_BLU, BLINK_TRIPLE);
+        led_set(LED_RED, 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));
-
+        // ESP-IDF will automatically try to reconnect by default.
        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)
    {
--- a/page/index.html
+++ b/page/index.html
@@ -53,10 +53,7 @@
                <span id="power-display" class="text-primary">--.-- W</span>
            </div>
        </div>
-        <div class="text-center order-md-2 mx-auto">
+        <h1 class="text-primary text-center order-md-2 mx-auto">ODROID Power Mate</h1>
            <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">
@@ -162,9 +159,12 @@
    </div>
 </main>
-<footer class="bg-body-tertiary text-center p-3">
+<footer class="bg-body-tertiary text-center p-3 position-relative">
    <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>
    <div class="position-absolute end-0 top-50 translate-middle-y pe-3">
        <small class="text-muted" id="version-info"></small>
    </div>
 </footer>
 <!-- Settings Modal -->
--- a/page/src/events.js
+++ b/page/src/events.js
@@ -7,10 +7,10 @@
 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, downloadTerminalOutput, fitTerminal} from './terminal.js';
 import {debounce, isMobile} from './utils.js';
 import {getAuthHeaders, handleResponse} from './api.js'; // Import auth functions
 // A flag to track if charts have been initialized
 let chartsInitialized = false;
@@ -60,6 +60,7 @@ export function setupEventListeners() {
        console.log("Event listeners already attached. Skipping.");
        return;
    }
    console.log("Attaching event listeners...");
    // --- Terminal Controls ---
    dom.clearButton.addEventListener('click', clearTerminal);
@@ -188,4 +189,5 @@ export function setupEventListeners() {
    window.addEventListener('resize', debounce(ui.handleResize, 150));
    listenersAttached = true;
    console.log("Event listeners attached successfully.");
 }
--- a/page/src/main.js
+++ b/page/src/main.js
@@ -55,12 +55,16 @@ const confirmPasswordInput = document.getElementById('confirm-password');
 function onWsOpen() {
    updateWebsocketStatus(true);
-    console.log('Connected to WebSocket Server');
+    if (term) {
        term.write('\x1b[32mConnected to WebSocket Server\x1b[0m\r\n');
    }
 }
 function onWsClose() {
    updateWebsocketStatus(false);
-    console.warn('Connection closed. Reconnecting...');
+    if (term) {
        term.write('\r\n\x1b[31mConnection closed. Reconnecting...\x1b[0m\r\n');
    }
    setTimeout(connect, 2000);
 }
--- a/partitions.csv
+++ b/partitions.csv
@@ -3,3 +3,4 @@
 nvs,data,nvs,0x9000,24K,
 phy_init,data,phy,0xf000,4K,
 factory,app,factory,0x10000,2M,
 littlefs, data, littlefs,   ,1536K,
--- a/schematic.pdf
+++ b/schematic.pdf
--- a/sdkconfig.defaults
+++ b/sdkconfig.defaults
@@ -7,11 +7,7 @@ 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