Very nice Moon!?
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There are those in the OnStep group who are fascinated with very high resolution encoders.? They want to have a feed back loop that will deal with any inaccuracies that that creep into the step motor drive systems. Step motors are usually spec'ed at +/-0.05-0.09°. But these errors occur randomly and when your microstep rate is 13,653 a second they tend to cancel each other out. Nevertheless, they persist, and have found a PC mouse encoder that is fairly cheap that they are playing with. IF anyone wants to play along the thread is here:
Ultra high DPI mouse as RA sensor:
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Currently, I believe they are using a 32bit ESP32S running at 2.4mHz to process their signals, but I stopped following the discussion a while ago.? Those of us with one foot in the grave don't have time for this. I've got too many graves to piss on.
