Smart Laser Security Circuit Diagram

This is powered with 3 volt dc supply and fixed on one side of the door frame.

Laser security circuit diagram. The circuit is using only few low cost components. This is a project of smiple laser security alarm circuit. Focus the laser diode light on the ldr and you will see the l e d and buzzer going off if you interrupt the laser light focusing on the ldr the circuit will trigger and the alarm will ring.

Laser door alarm is based on the interruption of laser beam. Breadboard prototyping board component description. The laser pointer is used as the source of light beam.

In this laser security alarm circuit we have used lm358 dual comparator ic for comparing voltages coming from ldr. 3 x 10 kω resistors 1 4 watt 220 ω resistors 1 4 watt 10 kω potentiometer. Laser security alarm circuit produce highly audible buzzer beep sound when the laser light blocked.

Where the other devices in the market are not efficient various hazards are the in maintenance. Suman singha debasis maji. After simulation in the platform of proteus it has been seen that it is very much efficient reliable easily maintainable tiny in size.

The circuit can be used as a laser door alarm laser motion detector laser proximity sensor trip wire alarm and for other simple home security purposes. Laser security system circuit diagram and explanation. Lm358 op amp ic ne555 timer ic ldr.

Normally laser door alarm circuit will have two sections. Abstract this paper is all about a new security device. 100 nf capacitor ceramic disc type capacitor code 104 push button.