They’re consistently popular with the readers, which is admittedly part of my (and EDN’s) motivation to continue doing them. But I personally also find them fascinating; inevitably I come across at ...

Hackers have loved LEDs from day one, back when they gave us little more than a dim spot of colored light in the darkness. These days, they’re big, bright, and beautiful, and can be used to create ...

Like many of us, [Tim]’s seen online videos of circuit sculptures containing illuminated LED filaments. Unlike most of us, however, he went a step further by using graph theory to design glowing ...