Laser Security Alarm System Circuit Diagram

This is a project of smiple laser security alarm circuit.

Laser security alarm system circuit diagram.

Laser security system a person moves in front of the sensor that person triggers the system s alarm by cutting the laser. The figure 8 shows the block diagram of 555 timer circuit 7 fo. Laser security system locks working along with circuit diagram. The circuit construction and setup for the laser security system is very simple.

Working of security alarm circuit. As soon as you connect the battery the l e d and buzzer will come on if you re in a dark room. 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. Normally laser door alarm circuit will have two sections.

Circuit diagram and explanation. If the intruder passes without obstructing the laser it is considered as a failure. If used with a battery the laser security system can work even when there is a power outage. R actual circuit refer to grebene 1984.

The laser pointer is used as the source of light beam. And the alarm signals the security. Comparator is configured as non inverting mode and one 10k potentiometer is connected at its non inverting terminal. This circuit is con.

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. 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. Laser light circuit fig. Sors and a basic alarm unit.

Hi i made a laser security system with resistors 1k and 6 8k and fet. In this laser security alarm circuit we have used lm358 dual comparator ic for comparing voltages coming from ldr. 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.

Layout or path draw of the pcb fig 2. If somebody tries to break the laser path then an alarm will be generated in a few seconds. Pull pin security alarm circuit. 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.

Easy laser light security system circuit at home.