十六进制指令：

1、e0 14 09 8b 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

2、e0 14 09 8a 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

3、e0 14 09 81 01 03 07 00 00 00 00 00 00 00 00 00 00 00 00 00

4、e0 10 08 02 12 00 00 00 00 02 02 00 00 00 00 00

5、e0 14 09 89 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00

五条发送指令都能被正确接收，基本上可以判定串口工作正常。