用单片机控制，对GSM模块进行控制，输入AT指令，采用C语言编程，简单可靠。-With the MCU control, control of the GSM module, enter the AT commands, C language programming, simple and reliable.

单片机控制TC35模块代码c语言编写，内涵GB2312到Unicode的相互转换-single-chip wireless communication module TC35i control the integrity of Keil C procedures and includes GB2312 and Unicode conversion, GB characters,, LED module control procedures.

c语言编写的GPRS短信收发程序,可在嵌入式平台上移植.-c language of GPRS messaging program, can be transplanted in the embedded platform.