This simple setup serves as a foundation for demonstrating the basic functionality of GPIO control. The LED can be switched on and off, while the push button allows for user interaction and input ...

Now, everything’s set up, so click the right-facing arrow near the top-left corner of the Arduino IDE window to upload the program to the board.

Premier space exploration disaster simulator, Kerbal Space Program, is fun to play with regular controls, but it can be improved with this DIY build that lets you launch ships with a giant red button.