All it took was one well-made weekend project (plus a little notice from Arduino and Ars) for Phillipe Cantin’s Lego experiment to go viral—NBC News, Tested, Smithsonian, Gizmodo, the Discovery ...

How can you tell if your software is doing what it’s supposed to? Write some tests and run them every time you change anything. But what if you’re making hardware? [deqing] has your back with the ...