In this tutorial I'm gonna teach you how to make a simple Light & Darkness Detector Circuit with a transistor & a LDR.This circuit can be used to automatically turn on-off lights or appliances by adding a relay at the outputYou can also replace the LED for a buzzer or any other output component if you wish.
Components you need:
* Breadboard
* LDR
* LED (any colour)
* Transistor (D200)
* 220Ω Resistor
* 1KΩ Resistor
* Connecting wire
* 9V Battery
Circuit Diagram
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