[Qbot2640]

We had difficulties as well. We were attempting to link a potentiometer to the tilt axle on our shooter and use the voltage drop as a way of calculating the tilt position. I added a carbon resistor to the low side of the circuit, because I was afraid of creating a high current situation. When I put a multimeter across the circuit, I always was able to detect a clear and repeatable change on the signal wire, but when trying to read the value it would read as a nonsense value. Someone told me I should have a capacitor in the circuit as well, but I don't really understand why.

We replaced the potentiometer circuit with an absolute position rotary encoder from the KOP a few years ago and we were able to do what we wanted, but we had some problems with that as well....and I think the potentiometer solution would have been better if we had gotten it to work.

Can anyone suggest what they have used in applications like this? The entire travel of the axle is only about 110 degrees from full up to full down.