52 lines
1.6 KiB
Markdown
52 lines
1.6 KiB
Markdown
# 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`. |