I’d like to be able to flip between two pressures (LOW, 60 PSI and HIGH, 100 PSI) on a hydraulic regulator. I don’t want to interfere with the actual hardware so I would like to make an actuator turn the knob just like a person would.
It needs to go from position A (LOW) to B (HIGH), or vice-versa when commanded.
Positions A and B are 90* apart.
When it is already in position A and gets a “LOW” command it should stay in place, same with B and a “HIGH” command, so it needs to know what position it is already in.
Would also need to be able to know what position it is in after its been turned off and back on.
Suggestions on how to accomplish this? Stepper and encoder? Stepper and limit switches?