REMOTE ALARM AND COMMAND SYSTEM FOR RESIDENTIAL DOMOTICS TROUGH GSM- SMS

The conception of an electronic system for alarm monitoring and remote command devices, through GSM mobile net using short messages (SMS) is described. It was developed as a low cost solution based on a common mobile phone and an Intel 8751 microcontroller. A prototype was built with a versatile configuration for residential domotics, including 6 binary inputs and 6 binary outputs, allowing to be associated to 4 different users (mobiles phones). The main characteristics of the hardware and protocol used for communication are described. The system was conceived in order to get an adequate performance, which came to be confirmed with the prototype. Reference is also made to other known systems for similar functions