How To Make A Simple Darksensor
Things you need:- A BC547 transistor 1-LDR (light depended resistor) 1- 100k resistor 1- LED 1- 220ohms resistor A small piece of protoboard soldering rod and soldering wire and some other common electronic items You can also make this as a light sensor I'll show it later Lets get started:- First you need to make sure which the emitter and the collector , so check the data sheet .