本程序代码主要功能是使用stm32微控制器调试华为公司Mg301模块,使它能够发短信、打电话和连接服务器等功能。-This Program code is aimed at using Stm32 Micorocontroller to debug the module of Mg301,which is the product of HUAWEI.Its function inculdes sending messages,dialling numbers,and connecting