@velcrome: Teensy 3.0 + OctoWS2811 LED library seem a good way to go! What about ethernet connection for Teensy 3.0? More confortable instead of USB connection. In the contribution page you suggest a Wiz module. I found this page but I think I have to modify the OctoWS2811 library to send UDP packets from vvvv to one or more Teensy.