(Repost from my YT channel)

I wanted something to try out my new Nano Multi-Tone PCB, so revisited my "Arduino Tones - A New Hope". The previous setup used one Arduino per speaker. This new one uses my new PCB and three speakers per Arduino.

Full details here: https://diyelectromusic.wordpress.com/2022/11/20/arduino-tones-a-new-new-hope/

Kevin