Python使用pyserial进行串口通信的实例

pip install pyserial

# coding:utf-8import serial.tools.list_portsplist = list(serial.tools.list_ports.comports())if len(plist) <= 0:  print("没有发现端口!")else:  plist_0 = list(plist[0])  serialName = plist_0[0]  serialFd = serial.Serial(serialName, 9600, timeout=60)  print("可用端口名>>>", serialFd.name)

# 所发十六进制字符串010591F50000F104cmd = [0x01, 0x05, 0x91, 0xF5, 0x00, 0x00, 0xF1, 0x04]

Windows下端口为COM*, Ubuntu下为/dev/ttyS0import serialclass Ser(object):  def __init__(self):    # 打开端口    self.port = serial.Serial(port='COM4', baudrate=9600, bytesize=8, parity='E', stopbits=1, timeout=2)  # 发送指令的完整流程  def send_cmd(self, cmd):    self.port.write(cmd)    response = self.port.readall()    response = self.convert_hex(response)    return response  # 转成16进制的函数  def convert_hex(self, string):    res = []    result = []    for item in string:      res.append(item)    for i in res:      result.append(hex(i))    return result