Ldr Circuit Diagram With Relay. 5v relay module 1. By this light activated switch in day light will automatically switched off and at night switch on light.
The rectified signal is flattened with the c1 electrolytic capacitor. Ic lm358 1. By this light activated switch in day light will automatically switched off and at night switch on light.
How the ldr circuit diagram works.
This light sensitive circuit can operate a relay to switch on lamps or any ac loads when it senses darkness. Circuit diagram working explanation. This automatic street light controller circuit uses an ldr light dependent resistor which is responsible for detecting light and darkness. In this circuit the ldr r5 pot r6 and resistors r1 and r2 are configured with each other in the form of a wheatstone bridge network.
