User manual
Ausgabe 19.05.2017 Copyright by Joy-IT 33
5.11 Project 11: Light dependent resistor
A light dependent resistor is a resistor which is changing its value by the
incoming light.
It is based on the photoelectric eect of semiconductors.
If the incoming light is intensive, it reduces its power of resistance.
If the incoming light is low, it raises its power of resistance.
Light dependent resistors are usually used for light measurement, light
control and for photovoltaic-conversion.
We will use this eect to control the light intensity of a LED.
Hardware Amount
Mega2560 board 1
USB cable 1
Red M5 LED 1
Light dependent resistor 1
220Ω resistor 1
10kΩ resistor 1
Breadboard 1
Breadboard cable 5