after 7 years I still find this very impressive, how much you can do (#ffft #fft) with such a limited MCU (#atmega328p) and a simple #arduino sketch
https://youtu.be/2BDE81b42Ac
http://nootropicdesign.com/lumazoid
https://github.com/BlackBrix/lumazoid
#ffft #fft #atmega328p #arduino