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