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Topic: RC Servo motor with feedback output (Read 4330 times) previous topic - next topic

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.

terryking228

Hi, There ARE servos that communicate with a digital protocol including position (Not "digital" servos with the regular pulsewidth control..)

Do you just need position info, Or servo motor with position feedback? 
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mkwired

I don't really need a motor.  I need to turn an object either with a motor or by hand.

Can you tell me more about the servos you mentioned?

zoomkat


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.
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keeper63

A thread which might interest you, mkwired:

http://arduino.cc/forum/index.php?topic=86279.0
I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

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