4G LTE模块串口读取DTU中文短信

意在解决自动化机器人，接受短信验证码场景。
1.规避手机app读取短信方案，安全性，手机占用，系统兼容问题；
2.长时间，高稳定，低成本选择方案。

某宝上买4G LTE硬件模块（声称不支持中文短信接收，实际是没有解码），PC通过串口和模块连接，模拟at控制进行短信收发。

import serial
import serial.tools.list_ports
import binascii

class DTUSMS:

    def __init__(self, serialName=None, port=9600, **args):
        if serialName == None:
            plist = list(serial.tools.list_ports.comports())
            if len(plist) > 0:                
                plist_0 =list(plist[0])
                serialName = plist_0[0]
        if "timeout" not in args:
            args["timeout"] = 2
        if "parity" not in args:
            args["parity"] = serial.PARITY_NONE
        if "stopbits" not in args:
            args["stopbits"] = 1
        if serialName == None:
            self.ser = None
        else:
            # uart_fd = serial.Serial(serialName, int(9600), timeout=2, parity=serial.PARITY_NONE, stopbits=1)
            self.ser = serial.Serial(serialName, port, **args)
    
    def open(self):
        if not self.ser.isOpen():
            self.ser.open()

    def write(self, msg):
        # 短信接收模式
        self.ser.write(msg.encode())

    def readLines(self):
        msgs = self.ser.readlines()
        msgs = [i.decode("utf-8") for i in msgs]
        return msgs

    def decodeMsg(self, msg):
        return binascii.unhexlify(msg).decode("utf-16be")

    def close(self):
        if self.ser.isOpen():
            self.ser.close()

def open(serialName=None,port=9600,args={}):
    return DTUSMS(serialName,port,**args)

def write(sms,msg):
    sms.write(msg)
    
def read(sms):
    return sms.readLines()

def decodeMsg(msg):
    return binascii.unhexlify(msg).decode("utf-16be")

def close(sms):
    sms.close()

if __name__ == "__main__":
    sms = open()
    print(1)
    write(sms,'AT*SMSOUT=2#\r')
    print(2)
    msg=read(sms)
    print(msg)
    while True:
        msg=read(sms)
        print(msg)
        if len(msg)>0 and msg[0][0:5] == "+SMS:":
            msg=msg[0].split(",")[3]
            msg=sms.decodeMsg(msg)
            print(msg)
            break
            
    close(sms)

效果：