[pros] has come up with a very elegant way of making lighted buttons (translated). Using a bunch of small push buttons harvested from old CD players, he rigged this unique way of mounting LEDs. Each ...

In hindsight, it sounds almost ridiculous. An expensive watch with technology that’s never been put on your wrist before that costs hundreds of dollars more than a traditional timepiece. And get this: ...

For their final project in ECE 4760 at Cornell, [Christina] and [Joe] made a small single octave keyboard using LEDs as the input. They used a total of 63 LEDs to make the keys. Each key consists of 9 ...