LDR

Laser Security Alarm Circuit

Security is main concern for various buildings, houses and offices. For this purpose, there are a variety of security alarms...

Automatic Staircase Light

We all know that one of the places where power wastage occurs most in homes and offices is at staircases. We usually turn on...

Simple LDR Circuit

Here we have explained a dark detector circuit by using 555 timer IC and a LDR (Light Dependent Resistor) which senses the...

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