Python使用pyserial进行串口通信

安装pyserial

pip install pyserial
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查看可用的端口

# 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)
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所发十六进制需转换为以下格式

# 所发十六进制字符串010591F50000F104cmd = [0x01, 0x05, 0x91, 0xF5, 0x00, 0x00, 0xF1, 0x04]
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串口通信
Windows下端口为COM*, Ubuntu下为/dev/ttyS0

import 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
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