Real-time WS2812b LED strip music visualization using Python and the ESP8266 or Raspberry Pi. - gkefalas/dancyPi-audio-reactive-led ...

Use SPI for talking to WS2812(B)-type addressable RGB LEDs (a.k.a. NeoPixels) and control 25% more LEDs while freeing up MCU resources at the same time.

The SoundDuino Arduino sound shield is capable of working with voltages from 3.3v to 5v and if you use the other Arduino boards, the only pins that you require are GND, VCC, RX, TX.