Order Out of Chaos

The Chaos Display is a sweet hack.  Fredrik Hübinette wanted to use some individually addressable RGB LED light strings for a programmable holiday display, but he didn’t want to painstakingly place each light, so, he just wrapped the lights around his tree, and then wrote some software to calibrate the installation by lighting each light while recording it with a webcam. Additional software analyzed the video to produce a mapping of light ID to position.