Design and implementation of an SMS based home security system

The project presents a versatile security and alarm system which can be used by individuals, corporations and establishments which require a cheap but reliable security system. The idea behind this project is to provide its users with a simple, fast and reliable way to get help during emergency situations. The device can be placed at any remote location which can be easily accessed by the user. It uses a microcontroller for system control, GSM technology for communication and sends SMS containing the emergency message and the GPS location of the sender. The project consists of an 8-bit microcontroller ATmega16, GSM SIM900A module and two Android applications for user interface with the hardware. One of the application configures the device. On pressing the panic button, the emergency contact receives the emergency message along with the GPS location of the sender. The device has been made for less than 1300INR and it can be used anywhere irrespective of the place of deployment provided mobile network connectivity is available.