Laser Security Alarm System Circuit Diagram

Comparator is configured as non inverting mode and one 10k potentiometer is connected at its non inverting terminal.

Laser security alarm system circuit diagram.

Laser door alarm is based on the interruption of laser beam. As soon as you connect the battery the l e d and buzzer will come on if you re in a dark room. This is a project of smiple laser security alarm circuit. If somebody tries to break the laser path then an alarm will be generated in a few seconds.

Pull pin security alarm circuit. Hi i made a laser security system with resistors 1k and 6 8k and fet. This video just to show how to make laser light security at home by using two transistor three resistance one photo resistance ldr and one led. In this laser security alarm circuit we have used lm358 dual comparator ic for comparing voltages coming from ldr.

The circuit construction and setup for the laser security system is very simple. Circuit diagram and explanation. Schematic circuit diagram of the laser light security alarm system step 2 clean the pcb with the help of a scrubber and after taking a small size container and some pcb etching solution ferrous chloride prepare a solution of etching by mixing the ferrous chloride and. The laser security system works only if the laser is obstructed.

Your laser security alarm system is now ready. Working of security alarm circuit. S1 and s2 are the two switches that are used in the circuit so that both can be put in two different places i e. One of them can put in front of the locker while another one can be placed on the front door.

Laser light circuit fig. The laser pointer is used as the source of light beam. Easy laser light security system circuit at home. Laser security system locks working along with circuit diagram.

If used with a battery the laser security system can work even when there is a power outage. Layout or path draw of the pcb fig 2. The circuit can be used as a laser door alarm laser motion detector laser proximity sensor or detector trip wire alarm and for other simple home security purposes.