FFTfastLED

This sketch listens to FFT analysis from the Teensy Audio Shield and displays it on three RGB LED strips to make a simple equalizer. For Teensy 3.1, use the latest (beta) version on FastLED.
Merge pull request #1 from Evanfeenstra/patch-1

Added Evan Feenstra's FFTfastLED for Teensy 3.1 & 3x WS2812b Strips