Hi
In a project Im working on, I would like to use a potentiometer to select between 8 different digital positions.
I will be selecting pins on a 4017 binary counter. I am trying to keep the cost as low as possible, and do not have space for a rotary switch.
I am thinking of using the potentiometer as a voltage divider, and then having a string of circuits to sense and switch on at different voltage thresholds (Ie 0 to .5v would be one selection .5 to 1v another selection). I am assuming that using 2 quad comparators would be the best option? I feel like some old school LED vu meters were build upon this principle.
Really, Im just looking for what the technical term for what I am trying to do is. I have looked through the books I own, and have not found a similar circuit, but I know it must be pretty common!
Thanks