Design of SMS Transceiver System based on SCM

In the contemporary mobile communication system which is widely used and more sophisticated is GSM system. GSM SMS system is one of a highlight. The messaging system consisted of microcontroller AT89S52, GSM module, temperature sensing devices and other peripherals of the original composition of the 51 series. The system can achieve single-chip GSM module controlled by program instructions enable SMS sending and receiving functions to achieve the temperature detection alarm messages, SMS control appliances switch function. Design of the system is simple and simple wiring the entire board, using the originals are low-cost low-power devices. After commissioning, the system design requirements to achieve the desired message is received and sent. On this basis, the extension can be achieved temperature alarm and control appliance switch effect.