GSM模块收发短信的基本概念以及串口控制SMS的基本原理。详细介绍了单片机控制GSM模块工作的软件实现过程，对对怎样用单片机控制GSM模块收发短信进行了探讨，也对程序设计的主体思想作了较为细致的分析。-GSM module to send and receive text messages, as well as serial control of the basic concepts of the basic principles of SMS. Detailed information on single-chip GSM module to control the work of software processes on how to control the use of single-chip GSM module to send and receive text messages was discussed, but also on the program design of the main ideological and made more detailed analysis.