The Micro seems to be a great choice.
That’s an even smaller enclosure than i was suggesting…that’s great!
One option for making it a little bit more universally usable is to add a dip switch to choose the number of program changes. A 4-pin dip switch could give you the option of selecting up to 16 program changes. I’m sure you’d have enough pins available with the micro. This feature would be nice if you wanted to only use 2 or 3 different presets so you wouldn’t have to scroll through all of them again to get back to the one you wanted.
Another thing you could do…you could add a different mode that toggles between 2 different selected presets when you press the foot switch, instead of scrolling through all the presets. You’d probably need to have a “mode select” toggle switch or something accessible from the outside of the enclosure. One position would be “scroll mode”, the other position would be “toggle mode”. The 2 chosen presets in “toggle mode” could be programmed by long pressing the foot switch (holding the foot switch for more than 2 seconds) when the desired PC number is selected in “scroll mode”…the number would blink a few times to show you that it was captured in memory.
I’m just throwing out ideas. I’m sure the project will turn out really cool. I am very excited to see it when it’s done.
Thanks again for sharing and keep up the amazing work!
-Brach