关键词: GPRS Sim300模块 短消息 Simcom AT指令

Abstract:

According to the current requirements of the remote control system in an automatic area, a scheme tor the SMS transmission systems with the SIM300 wir eless TCP/IP module and the GPRS wireless communication technology is proposed, and the controlling mode of SMS transmission is introduced. This paper describes the software and hardware design and implementation of the GPRS SMS terminal, which can realize the SMS transmission control with MCUs or PCs. Test shows the SMS terminal conforms to the requirements of SMS transmission completely, which has a widespread application prospect.

Key words: GPRS, SIM300 module, SMS, Simcom, AT command