I modified the telescope mount program so that it passes the frequency scaled by 10 to the stepper.set_speed routine. I defined the constant RA_RATE to set the base value for the RA speed. This should be set to the frequency needed to generate the sidereal speed. The value is currently set to 9_5, which corresponds to 9.5 Hz.
The SCALE value in stepper.spin must be changed to a value of 4 so that it divides the parameter received in set_speed by 10 to get the right frequency.
OK now it's working like a champ. I got it down to 8Hz and the orion mount is tracking about one minute slow in 30 minutes. The meade mount uses a larger gear on the RA axis which is good news. Thanks for all your help. Willl include picture
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The SCALE value in stepper.spin must be changed to a value of 4 so that it divides the parameter received in set_speed by 10 to get the right frequency.