Building an LED matrix is a fun project, but it can be a bit of a pain. Usually it starts with hand-soldering individual LEDs and resistors together, then hooking them up to rows and columns so they ...

[Fearless Night]’s slick dual hourglass doesn’t just simulate sand with LEDs, it also emulates the effects of gravity on those simulated particles and offers a few different mode options. The unit ...

LEDs are current driven devices. It is relatively simple to drive several LEDs individually. However, as the number of LEDs increases, the amount of resources needed to operate these LEDs grows to an ...