Wireless home security system / Mohammad Firdaus Azizan

In Malaysia burglary cases are increasing dramatically. Therefore this project 1s designed to reduce this crime since this wireless security system is low in cost and able to be owned by everyone. Wireless Home Security System (WHSS) which is intended to be implemented in a double storey house with approximately 22 feet x 70 feet. The proposed system is developed to support seven different zones and at each zone, an Infrared Light Emitting Diode (IR LED) motion sensor is placed to sense any movement in the house. This system consists of two main modules namely transmitter and receiver module. Both receiver module and transmitter module is developed using PIC l 6F877 A microcontroller as a main controller unit. MicroC Compiler and MPLAB IDE® version 8. 7 are used to write the program of the system. Both of the software's are very compatible for writing and designing a program for Peripheral Interface Connection (PIC) microcontrollers. In the transmitter module, a remote control consists of a l 6x2 Liquid Crystal Display (LCD) and a 4x4 matrix keypad is developed to control the entire system. In addition, this cost-effective system also has capability to arm and disarm the selected zones remotely. In this system, only house owner having the right password can operate this remote control. If the sensor detects any movement at particular zones, the transmitter will transmit this information to the receiver module. As a result, the respective LED at the receiver will light on initiating the alert system to the house owner.