Learn to use LEDs and Arduino with this tutorial!

LEDs are used in all kinds of engineering and coding projects.  Here you can learn how they work, as well as how to build a circuit and write code to get them working.  Get started with this STEM project today!

What happens inside an LED to create light?  Find out in this video. 

Use this diagram to build a simple LED circuit. Once you’ve mastered this, you can add an LED to any circuit.  

Use this code to make your LED circuit blink.  Then play with the code, and see if you can make the LED blink faster or slower.