Exemplary Laser Light Security Alarm System Circuit Diagram

Laser security system locks working along with circuit diagram.

Laser light security alarm system circuit diagram. The circuit is divided in to two sections first is a laser transmitter or laser light and second is a laser receiver with time delay and alarm or siren circuit. A security system protects our homes offices banks lockers etc. The ldr module has an onboard potentiometer to adjust the sensitivity of ldr so that it only senses laser light falling onto it.

Laser door alarm is based on the interruption of laser beam. This is a project of smiple laser security alarm circuit. Schematic circuit diagram of the laser light security alarm system step 2.

Your laser security alarm system is now. An ldr photo resistor is used to sense the laser beam. First one laser transmitter is a laser pointer readily available.

When any person or object will come in between the laser beam the laser beam will be cut or interrupted therefore the ldr will not sense beam on its surface that increases the. Construction testing step 1. The receiver will.

2 3 share spread knowledge. 2 working of the laser light security system using arduino. Two npn bc548 transistors implemented in this security alarm circuit as a switching device.

Ldr light dependent resistor connected to the base terminal of q2 transistor through r4 resistor this ldr gives low resistance when the laser light falls on it and gives high resistance when there. 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. This is powered with 3 volt dc supply and fixed on one side of the door frame.