A DIY light sensor kit with a 555 timer and a LDR.

A DIY light sensor kit using a NE555 timer and a LDR. Also you will need 1kΩ resistor, 10kΩ resistor, 22kΩ resistor, 10nF ceramic capacitor, 100nF ceramic capacitor and a 100kΩ potensiometer.

The output of the sensor can be obtained from the middle pin of the 3-pin connector.