python串口调试，M3650B-HA调试

使用python serial与M3650B-HA（RFID读写器）串口通信

环境:py3.6

模块：pyserial

1、serial模块安装

废话不多说，直接上代码，测试环境py3.6

# coding:utf-8

__author__='古墓派掌门'

import binascii

import serial.tools.list_ports

import serial

class Ser(object):

    def __init__(self):

        # 打开端口

        # self.port = serial.Serial(port='COM3', baudrate=9600, bytesize=8, parity='E', stopbits=1, timeout=2)

        plist = 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]

            self.port = serial.Serial(port=serialName, baudrate=9600)

            print("可用端口名>>>", self.port.name)

    # def show_port(self):

    #     plist = 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)

    # 发送指令的完整流程

    def send_cmd(self, cmd):

        self.port.write(bytearray.fromhex(cmd))

        # print(cmd)

        response = self.port.read(12)

        # response = self.convert_hex(response)

        response=str(response).replace("\\x"," ")

        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

if __name__=='__main__':

    ser1=Ser()

    while 1:

        # order=input("请输入指令：\n")

        # print(ser1.send_cmd(order))#02 08 F9 20 00 00 00 2c

        # order='01 08 A1 20 00 00 00 77'.encode('ascii')

        # # ser.write(order)

        # print(order)

        order=input("请输入命令，格式见收据手册\n")#01 08 A1 20 00 01 00 76

        print(ser1.send_cmd(order))