This laser is sensed by an LDR sensor from the other end and detects the rate at which the laser blinks. The LDR sensor is connected to the Arduino which controls the alarm system. Whenever someone ...

I am Aayush Bhatt and i am sharing my project of Laser light security system using LDR and Arduino UNO:- LDR (Light Dependent Resistor) is the sensor that changes its resistance as the intensity on ...