If it’s of use to anybody, I found a lovely Hackaday article with an Arduino driver for endless potentiometers.
For those who, like I was until last night, are unaware of endless potentiometers, they are a type of rotary encoder* used in some more modern music devices like the Maschine and newer Elektron products. I’m a big fan of how they feel, so I wanted to use them in projects.
*they’re not actually rotary encoders, but that’s the best way I can think to quickly describe them!
Far as I can tell, Alpha is the one manufacturer that makes them in a ready-to-go pcb format with a turnable shaft. I haven’t tried them yet myself, but there’s one person in the comments who said he wired 16 to a Teensy, so the driver is at the very least functional.
Let me know what you think, or if you use them, or know another manufacturer that has them a little cheaper (they’re kinda pricey).