Did you know that you can use Arduino to turn on an LED when you press a button? Well, it is true, you can do this! Leaving the joke aside, let me show how you can achieve this. You will need the ...

Let it hit your red LED ... button presses would make it speed up even more. But there are really just the two speeds with the current programming. Inside the cool laser-cut box is an Arduino ...

We want to use four 7-Segments LEDs controlled by the Arduino ... LED devices work. The general principle behind this kind of devices is the same that makes the common LEDs working. To get a LED ...