openFrameworks addon + example to connect to one or more Teensy 3.0+ to control LEDs using the OctoWS2811 library: https://www.pjrc.com/teensy/td_libs_OctoWS2811.html
Each Teensy can drive up to 8 strips each.
The following Teensy code needs to be uploaded for it to work: https://github.com/PaulStoffregen/OctoWS2811/tree/master/examples/VideoDisplay
or ./example/Arduino