自动检测串口上是否有通信设备，然后开启发送短信功能，vc下调试通过-Automatically detects whether there is serial communications equipment on, and then open the send message function, vc debugging through

短信猫收发短信的程序,通过串行口收发短信.发送短信时分割字符没有汉字乱码，决对好用，其结构是趋向短信查询自动回传短信的系统-Send and receive SMS text messages cat program, send and receive text messages through the serial port. Its structure tends to return SMS messages automatically check the system, send SMS

通过串口at指令接收短信及时读取短信内容,超过30条自动清空-At command through the serial port to receive SMS text messages in a timely manner to read the contents of more than 30 auto-clear

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