Hi guys, I'm bringing this topic back to life as I have this plan in my head... and need your help (if you're willing to help).
So I haven't worked with arduino for a while even though 10y ago I did my master theses about it!

However, I was using pure data/pduino as I'm null with coding!
Anyways, I'm building guitars and now I wanna embed a pedal circuit in one of my guitars. This is a mini guitar that is gonna have a natural high pitch sound to which I want to apply an Octaver to (octave down). All variables are to be constant, so without pots to control them. The only thing I want to have there is a switch (On or Bypass). Maybe a switch (ON/Mix/Bypass)... just thinking...
My idea is to have the smallest arduino possible, ideally a Nano...
Doable? Ideas?
Thanks in advance