Beagle Board -
Donald Hau
Published © GPL3+

Beagleboard Audio Spectrum DIsplay

This project uses a microphone analog input, performs an FFT on the data and displays its frequency spectrum to an RGB LED matrix.

BeginnerFull instructions provided1 hour4
Beagleboard Audio Spectrum DIsplay

Things used in this project

Hardware components

BeagleBone Black BeagleBone Black
Microphone Amplifier Breakout
Adafruit Microphone Amplifier Breakout
many variants of this will work, so long as you provide a 1.8V max analog signal
Adafruit led matrix bi-color 8x8


Read more


fritzing diagram

the large chip is representative of the i2c LED matrix



the main repository with code and more info


Donald Hau

Donald Hau

2 projects • 0 followers
Thanks to Mark A Yoder.


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