I am quite sure this is the most simple question to answer and that I'm overcomplicating it; all the same I would be very grateful for your help in finding the most simple way to reach my goal.
In short: what is the quickest, easiest way of detecting if a simple circuit (just a switch) is complete using Phidgets (outputting, say, a 0 for incomplete and a 1 for complete)?
Long story: I have a simple SPDT switch underneath a rotating arm which, when moving, rolls over the button controlling the SPDT switch. I just need to know when the arm is directly over the switch (i.e. when the button is pressed to make the circuit) so that I can then use this info to know when to cut the power to the arm - what is the easiest way to do this?
Once again, any help would be much appreciated.