stan2004 posted:So you really did want a 3-terminal potentiometer! Just so I understand, you're using an A/D to detect 1 of 11 positions of the potentiometer as a selector switch to choose from 11 functions or programs or whatever in the Arduino ?
That's correct. I was thinking about the station stop block (the #132) and how I might want to work out a stop block controlled by an Arduino. I wanted to be able to vary the number of times a train might pass the station without stopping. Maybe 10 times seemed like a good number. I knew it could be done with a nice panel mount potentiometer. But continuously variable just doesn't cut it when you want a small count. I wasn't even sure if a pot with detents existed other than the ones with a center detent for stereo controls. If this idea works, I may use it for precise delay timing as well.
