Four color ball sorter for LEGO NXT. Needs: 1 x LEGO NXT 3 x Motor 1 x Lightsensor 1 x Colorsensor
https://www.youtube.com/watch?v=y-1mGofbWY8
Read my blog post @ https://galonga.de/projektstudium-nxt-2-0-autonomer-bauplatz/ (sorry its in german ;) )