RS485/RS232

  • RS485: Half Duplex, device name: /dev/ttyTHS2

    • Before Send Data: echo 1 > /sys/class/leds/RS485_H_SEND_L_RECV/brightness

    • Before Receive Data: echo 0 > /sys/class/leds/RS485_H_SEND_L_RECV/brightness

  • RS232: Full Duplex, device name: /dev/ttyTHS1