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Last Updated: 2026-07-31 13:46:27

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

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