可以实现tc35i打电话发短信，这是很简单的实现了 是通过51单片机实现的-Tc35i phone text messaging can be achieved, it is very easy to achieve a 51 Microcontroller by

这是基于SIM900A模块的上电后，自动发送一条信息的51单片机的程序-This is based on the power of the SIM900A module, automatically send a message to the 51 microcontroller program