13-10-2014, 01:48 PM
Abstracts: This is an 8051 microcontroller based home security circuit which detects any motion in particular space. This circuit also detect interface between objects and sensors. This Project can be used in home, shops, offices etc. It keeps tracking of both Incoming and Outgoing Calls. The circuit has a built in DTMF identification circuitry. The incoming and the dialed numbers are displayed on the LCD display.