python继电器控制

import serial
import time

portx = "COM3"
bps = 9600
timex = 10


def getRsp():
    # 停止、等待数据，这一步非常关键。timeout压根没用
    time.sleep(1)
    count = ser.inWaiting()
    # 数据的接收
    if count > 0:
        data = ser.read(count)
        if data != b'':
            # 将接受的16进制数据格式如b'hx12x90xV5x12hx91n4737Exc3xabx89hExe0x16'
            #                      转换成b'6812907856351268910a3437333745c3ab896845e016'
            #                      通过[]去除前后的b'',得到我们真正想要的数据
            # print("receive", str(binascii.b2a_hex(data))[2:-1])
            print(data)
            return data


def serialReq(param):
    time.sleep(1)
    # result = ser.write("0x24x01x02x00x27")
    # result = ser.write(b'x24x01x02x00x27')
    # result = ser.write(b'x24xFFx02xA0xC5')
    result = ser.write(param)
    print(result)


open1 = b'x01x05x00x00xFFx00x8Cx3A'
close1 = b'x01x05x00x00x00x00xCDxCA'
open2 = b'x01x05x00x01xFFx00xDDxFA'
close2 = b'x01x05x00x01x00x00x9Cx0A'
open3 = b'x01x05x00x02xFFx00x2DxFA'
close3 = b'x01x05x00x02x00x00x6Cx0A'
open4 = b'x01x05x00x03xFFx00x7Cx3A'
close4 = b'x01x05x00x03x00x00x3DxCA'
if __name__ == '__main__':
    ser = serial.Serial(portx, bps, timeout=timex)

    serialReq(open1)
    serialReq(open2)
    serialReq(open3)
    serialReq(open4)
    serialReq(close1)
    serialReq(close2)
    serialReq(close3)
    serialReq(close4)


    print(getRsp())

    # 关闭串口
    ser.close()