Educeeno is compatible with the most common Uno R3 (around 7-10$ on Ebay) and Mega R3 (around 8-15$) and Arduino Leonardo boards.

Using an Arduino and a little code on your PC, it monitors your screen and creates lighting behind your monitor.

A DIYer has pieced together a railgun of 3D printed pieces and other parts. The 3D printed prototype made by the U.S Navy is considered legit.

Arduino simplifies things by only using just one coding language. Here's what you need to get started with developing software for the tiny device.