1# uartdemo.py
2from serial import Serial
3
4try:
5	uartport = "/dev/ttyPS1"
6	bps = 9600
7	timeout = 5
8    # 打开串口，设置串口的端口、波特率、超时时间
9	serial = Serial(uartport,bps,timeout=timeout)
10    # 发送字符串到另一个设备
11	result = serial.write("HelloWorld")
12	print(result)
13    # 关闭串口
14	serial.close()
15
16except Exception as e:
17	print("----error-----",e)