Laser Security Alarm System Circuit Diagram

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.

Laser security alarm system circuit diagram.

This is a project of smiple laser security alarm circuit. If the intruder passes without obstructing the laser it is considered as a failure. In this laser security alarm circuit we have used lm358 dual comparator ic for comparing voltages coming from ldr. Hi i made a laser security system with resistors 1k and 6 8k and fet.

Working of security alarm circuit. One of them can put in front of the locker while another one can be placed on the front door. Laser door alarm is based on the interruption of laser beam. 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. 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. Your laser security alarm system is now ready. Comparator is configured as non inverting mode and one 10k potentiometer is connected at its non inverting terminal.

The figure 8 shows the block diagram of 555 timer circuit 7 fo. Pull pin 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. Normally laser door alarm circuit will have two sections.

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. Circuit diagram and explanation. As soon as you connect the battery the l e d and buzzer will come on if you re in a dark room. Laser security system locks working along with circuit diagram.

Laser light circuit fig. Easy laser light security system circuit at home. R actual circuit refer to grebene 1984. The circuit construction and setup for the laser security system is very simple.

The laser security system works only if the laser is obstructed. Laser security system a person moves in front of the sensor that person triggers the system s alarm by cutting the laser. And the alarm signals the security. The laser pointer is used as the source of light beam.

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.