LED lights can be used with a robot to debug and give it feedback, so the code running on the robot can show its state. Colored RGB LEDs let you mix the red, green, and blue components of light to make many colors, adding brightness and color to a robot. We've not paid much attention to making it look fun, so this time we can add some of that.
In this chapter we will learn the following:
- How to choose and buy LED technologies that will work with the Raspberry Pi and look good on our robot
- How to attach them to the robot
- How to write lighting code to create dynamic displays
- How to integrate them with a behavior and display a rainbow