This just adds to the multitude of other uses for that Ethernet cable. We’ve seen voice, data, composite video, VGA, and power. What else have you seen run over cat5?

For the power drop issue, [Teknynja] is feeding 12V ... to drive a few strips of WS2812 LEDs through 20-foot lengths of CAT5 cable with ease; it worked just the same as if the pixels were ...