This is a simple light intensity indicator using a photo-resistor and 3 LEDs. It indicates the amount of light available around the photo-resistor with a range of 3 LEDs. Arduino UNO board will be used in this tutorial.
In this tutorial, you will learn how to make a simple light chaser, which will consist of only 3 LEDs. What does a lightchaser do? A light chaser can be used to create lighting animation sequences to attract attention.