Laser Security Alarm System Circuit Diagram

Hi i made a laser security system with resistors 1k and 6 8k and fet.

Laser security alarm system circuit diagram. Working of security alarm circuit. 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. If the intruder passes without obstructing the laser it is considered as a failure. Layout or path draw of the pcb fig 2.

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. One of them can put in front of the locker while another one can be placed on the front door. Pull pin security alarm circuit. Your laser security alarm system is now ready.

This is a project of smiple laser security alarm circuit. Comparator is configured as non inverting mode and one 10k potentiometer is connected at its non inverting terminal. Normally laser door alarm circuit will have two sections. In this laser security alarm circuit we have used lm358 dual comparator ic for comparing voltages coming from ldr.

Laser light circuit fig. The laser pointer is used as the source of light beam. 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.

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. The laser security system works only if the laser is obstructed. Easy laser light security system circuit at home. The circuit construction and setup for the laser security system is very simple.

If somebody tries to break the laser path then an alarm will be generated in a few seconds. Circuit diagram and explanation. Laser door alarm is based on the interruption of laser beam.