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INDI Library v2.0.6 is Released (02 Feb 2024)

Bi-monthly release with minor bug fixes and improvements

INDI focuser driver for Waveshare Stepper Motor HAT for Raspberry Pi / Rock Pi

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I was looking for the ABORT button. Is my assumption correct that the new features should show up on the INDI Control Panel? Or is this something that only passes info to EKOS?

Also, did you update the version number?  I'm still showing 1.0 in the General Info tab.  The code that compiled is a different size than the original, so I don't -=think=- I have an old copy running.  I will admit that I have large quantities of stupid I haven't event begun to use yet.
Last edit: 2 years 9 months ago by Jon Carleton.
2 years 9 months ago #71971

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I have not updated the version number, good point, I should do that.

 
2 years 9 months ago #71986
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Ah! That works exactly as I suspected it would. Therefore, I was running the old version.

How, you ask? (Need I remind about the "stupid I have yet to use?") The old make install put the binary in /usr/local/bin, rather than /usr/bin. My Pi4 $PATH order has /usrlocal/bin prior to /usr/bin, so it finds the old compile first rather than the new version, that now lives in /usr/bin (which is probably less confusing for most folks).

jon@pi4~$ which indi_wmh_focuser
/usr/local/bin/indi_wmh_focuser # doh!!

I am happily running the new version and found the Abort button (right where you put it). You may rest easy now, confident in the knowledge that if...er..when.. I fat-finger a relative position as 30000 instead of 300, I now have an option to resolve the issue rather than going into town for dinner and coming back when it may be finished.

Your assist is much appreciated!
2 years 9 months ago #71991

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Awesome, glad you got it working!

I updated the version to 1.1. Thanks for the reminder about that.
The following user(s) said Thank You: Jon Carleton
2 years 9 months ago #71994

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This latest version has introduced a bug in the backlash correction.
When I issue a move Out it will move out, then in, then out again. Even if I do not change directions. 
And when I move In, no backlash steps are applied. 
Otherwise the abort feature and live position is working nicely. 
Thank you. 
2 years 9 months ago #72052

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I changed how the backlash compensation behaves. In previous versions, it was quite simple. If you change directions, it will add whatever you specify in the backlash field.

Now, it behaves different. Now, it will attempt to always approach the desired focus position from the same direction. If you're moving in, then great, it will just move the desired number of steps. If you're moving out, it will deliberately overshoot (by whatever you set in the backlash field), then move in to the desired position. This is a more reliable way to deal with backlash. Just set the backlash field to some large number, greater than however big the actual backlash is. The actual number doesn't matter, as long as it's big enough.

With this new behavior in mind, if you still think there's a bug, please let me know.

-- Kevin
2 years 9 months ago #72053

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If that is the case. Then there is still an issue. If I understand your description correctly. All movements will finish in the same direction. My inward travel with no additional movement is in a Clockwise (CW) direction. But my outward direction moves CCW, CW, CCW. 
Thus the next time I move inwards the backlash is not being accounted for. 
To work the way you described it should move CW, CCW, CW. 

Personally I prefer the simple traditional approach. And if I need the focuser to approach from one direction, I would use linear algorithm. 
2 years 9 months ago #72055

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You are correct, the new version is completely borked with regards to backlash compensation. Seems when I merged branches together, the merge succeeded, but the end result is not what I wanted. And since I don't use that particular feature myself, I didn't notice it was broken.

I will go back to the old method, since you are right, one can use the linear method if they want that functionality. I should have this checked in later tonight.

Thanks!
-- Kevin
2 years 9 months ago #72056

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Thank you. I greatly appreciate all your efforts.
2 years 9 months ago #72057

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Okay I reverted the backlash code to the old method. Please let me know if it works properly for you.

-- Kevin
2 years 9 months ago #72059

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Backlash looks good. Only thing I have to add is increasing the maximum backlash value from 500.
I have a high gear reduction setup and my backlash is 1020 steps, so I edited it to a maximum of 1500.
2 years 9 months ago #72061

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For the record, I managed to compile the latest upload on both the x86_64 and Pi4 (running Ubuntu Mate). I did get some depreciation warnings on the Pi4 compile, but not the x86_64 (odd that). Both versions seem to work, though.

Thanks again!
2 years 9 months ago #72160

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