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 and you’ve lost a point. But if you can push your button while your yellow ... Inside the cool laser-cut box is an Arduino Uno and a 9V battery, plus a current-limiting ...

To the human eye, it looks like multiple LED’s are lit up simultaneously. [Alex] planned to use an Arduino to control ... a piece of perfboard with four push buttons. He had to work out all ...

Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push button increment of the counter from 0 to 9. The whole circuit can ...