I have an AVR project where most all my I/O is used up. But, I still need to add an address selector like a BCD or hex switch. I have an available A/D channel and was thinking there could be a pot out there with 10 or 16 detents that could be used.
I did some google searching and found some patents for the idea, but no actual components. Has anybody seen such an animal?
The problem is that if one actually exists, it'll probably be cheaper to upgrade the micro than to upgrade the switch. The switches I'm looking at all cost more than the micro in the first place. That really grinds my gears.