Basic spectrum analyzer on a 32x32 RGB LED matrix using SmartMatrix, FastLED, and the Teensy Audio Library.
Based on SpectrumAnalyzerBasic by Paul Stoffregen: https://github.com/PaulStoffregen/Audio/blob/master/examples/Analysis/SpectrumAnalyzerBasic/SpectrumAnalyzerBasic.ino
Requires a SmartMatrix shield: http://docs.pixelmatix.com/SmartMatrix
Requires the following libraries:
- Teensy Audio Library: https://github.com/PaulStoffregen/Audio
- Smartmatrix Library for Teensy 3: https://github.com/pixelmatix/smartmatrix
- FastLED v2.1: https://github.com/FastLED/FastLED/tree/FastLED2.1 ** will not work with older versions/branches **
Uses line in on pin A2. For more information, and a recommended analog input circuit, see: http://www.pjrc.com/teensy/gui/?info=AudioInputAnalog
