How to make a Light Sensor

A simple circuit to make your own light sensor!

All you need is,


1.100K resistor(Brown  Black  Yellow)

2.330R resistor(Orange Orange Brown)

3.An LED light

4.Transistor(BC547)

5.An LDR(Light Dependent Resistor)

6.6v Supply


Just build the circuit on a bread board or a PCB and enjoy!