mkwired:
Does anyone sell a RC hobby "servo motor" which outputs its position? I guess I could drill a hole into one and run some wires into it but I rather not. What I really need is an angle position sensor, but it does not need to be very precision, so I don't need an expensive encoder. I potentiometer is good enough.
You can read the voltage off of the servo pot wiper, but you would need to open the servo and solder a wire and have an appropriate pot reference voltage.