Raspberry Pi Audio Spectrum Analyzer

Raspberry pi led spectrum analyzer turn your pi into a music display that bounces along to mp3 playlists. This tutorial demonstrates how to build a raspberry pi audio spectrum analyzer using a bi color led matrix and a holtek ht16k33 which is a very powerful i 2 c led controller driver and matrix key scanner. Sometimes this display is erroneously referred to as a graphic equalizer that let s you change the sound not display it i was able to.