Controller Looses Position on Power Off

Version 2 of the myFocuser Project

Brought to you by: brownrb

Controller Looses Position on Power Off

Forum: General Discussion

Creator: Barry E.

Created: 2020-05-14

Updated: 2020-05-16

Barry E. - 2020-05-14

I just upgraded the firmware from v270 to v295 on my Arduino-based DRV8825HW203 focuser, and am now seeing strange behavior.

The Windows app (2.4.4.5) successfully connects and controls the focuser, but once I disconnect the app, wait 30 seconds, then unplug the USB cable from the Nano, it seems that it's loosing the focuser Position. Because when I plug the cable back in, reconnect the Windows app, the values are reset: Position=5000 and Max Steps=10000.

If I don't unplug the cable (just disconnect the Windows app), the Position is saved.

Is this expected behavior?

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brownrb - 2020-05-16

No it is not.

Recommendations.
Run the ClearEEPROM program (see firmware zip file, tests/FocuserUti;Programs)
the repogram the controller
Use control panel to remove windows app
then run the setup program to reinstall it

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