Audio Spectrum Analyzer in a Guitar Pedal - Arduino Audio Meter by ElectroSmash

Arduino Audio Meter is a new pedal from ElectroSmash. It's basically a 16x16 LED matrix in a guitar pedal form factor with an Arduino Uno inside, which means you can code your own effects. Arduino Audio Meter on the ElectroSmash Forum: https://www.electrosmash.com/forum/arduino-audio-meter?lang=en