In this project, you’re going to control an RGB LED from an Arduino. You’ll use a thermistor to measure temperature, then visualize the temperature by showing a red color for warm, blue for cold, and green for in between.

It requires basic knowledge of how to use Arduino. If you’ve never used an Arduino before, we recommend you go through the course Getting Started With Arduino first.

There are two types of RGB LED; common anode and common cathode. In this experiment, you’re going to use a common cathode LED.