https://www.adafruit.com/product/4640

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tonescout
 
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https://www.adafruit.com/product/4640

Post by tonescout »

Any ideas how accurate the positional control is / or does this have to be supplemented separately?

sorry I am a complete newbie to this :-)

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adafruit_support_bill
 
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Re: https://www.adafruit.com/product/4640

Post by adafruit_support_bill »

The motor has a quadrature encoder where each channel puts out 7 pulses per revolution. The two channels are 90 degrees out of phase which gives you direction and a relative angular resolution of about 25 degrees. Your software will need to monitor the pulses to determine the direction and relative motion.

This article explains how these encoders work: https://en.wikipedia.org/wiki/Increment ... re_outputs

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tonescout
 
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Re: https://www.adafruit.com/product/4640

Post by tonescout »

fantastic - I will have a read!

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tonescout
 
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Re: https://www.adafruit.com/product/4640

Post by tonescout »

so it looks like this will not give me the fidelity I need for positional control, presumably I can source a different way to manage the encoder that can give me smaller increments of movement. I would prefer to use this over a stepper motor - but happy to receive advice otherwise

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