Blog - LightUp Learning

This week’s project was inspired by three kids who used LightUp and Arduino (for the first time!) to build an awesome project that let’s you play your favorite song. We actually simplified things a bit so we can explain how each part works.
Have you ever wanted to make your own music box? With LightUp you can, and we’ll show you how!...

Got a pile of batteries lying around and don’t know which ones work and which ones don’t? Build a simple battery tester in a few minutes with LightUp and test them out! This project can test 1.5 volt batteries like AA, AAA, C and D sizes.
Fresh batteries start out providing their full voltage (1.5 volts), and as they’re used this voltage starts to drop. When the battery drops below 1.2 volts, it’s generally no good. We can detect the voltage of a battery by using your microcontroller...

What’s a theremin you ask? Play the video to find out how this instrument works. Then, build one with LightUp Learning!
A theremin is a futuristic instrument you can control by waving your hand. By moving your hand closer or farther from it, you can change it’s tone. We’re going to make a light theremin, which is controlled by light. When you put your hand closer to it...

Ever wonder how those nightlights that turn themselves in the dark work? Make your own in 15 minutes and learn how!
The first thing we need to do is make a circuit that knows whether it’s light or dark. To do that, we can use your light sensor, and a little Arduino code. Your light sensor does what you might think: it senses light. More precisely, it changes its resistance...