JST Connectors

UART

/dev/ttyTHS0

1: X 2: UART_TX 3: UART_RX 4: GND

I2C

# i2cbus 1

# Check the I2C devices on I2C bus 1 
sudo i2cdetect -r -y 1

Testing with AiP1640 [ref]

PIN Define 1: X 2: I2C_SCL 3: I2C_SDA 4: GND

CAN

PIN Define 1: X 2: CAN_H 3: CAN_L 4: GND

DIO

DI - PIN Define 1: ISO_DI0 2: ISO_DI_GND 3: ISO_DI_GND 4: ISO_DI1 DO23 - PIN Define 1: ISO_DO2 2: ISO_DO_GND 3: ISO_DO_GND 4: ISO_DO3 DO01 - PIN Define 1: ISO_DO0 2: ISO_DO_GND 3: ISO_DO_GND 4: ISO_DO1

PRTN

//Power LED + Power Button PIN Define 1: PWR_LED 2: GND 3: PWR_BTN 4: X

USB2

PIN Define 1: VCC 2: USB2_N 3: USB2_P 4: GND