Basically you can either get support from Instein or become a DIY OnStep user. OnStep has "support" for the Instein Mega2560 hardware AFAIK, use it at your own risk, I think it works. Again, OnStep is

Read about guide rates in the Wiki under the Control section.

I'm beginning to get the impression that the MKS Gen-L series perhaps has design and/or intermittent implementation problems with the Mega2560 reset circuitry on the USB port. This goes beyond the typ

The ST4 port pins should have proper pullup resistors installed otherwise strange things similar to what you describe can happen. Canceled slews due to very rapid start/stop guide glitches from spurio

I repeat.

In your case I guess this seems odd to you since it always forces a flip if you sync or try to do a goto after changing the PPS. But for the most common use case the setting often has no effect on how

Note you don't need to change the WiFi Addon settings to match. It automatically tries 19200 as part of the connection attempt cycle regardless of settings. It probably will connect faster if you set

Sounds like the simple act of plugging USB in causes WiFi to disconnect. If this is the case, that clearly points to a hardware cause well outside of anything to do with OnStep. If plugging USB in "cr

In your example the mount is still on the east side until that sync causes it to flip to the west as allowed for by the preferred pier side setting.

No, it's not wrong.

It's called preferred for a reason. It's not the pier side it's the pier side OnStep will pick if possible. Sounds like it's working perfectly.

Light reading: https://www.trinamic.com/technology/motor-control-technology/chopper-modes/

Thank you for the feedback, I do take note and will act if a path to resolution presents itself. In the meantime I added a more prominent comment on my sites ASCOM driver page about the beta driver be

The beta I just created will become release-4.x, that will likely be the last version the 128k Bluepill will run.

Start another topic this isn't the place.

You never know. Note that version 5 compiles to a significantly larger size than version 4.x so this leaves the Bluepill STM32F103C8(CB) behind.

The master branch now has some pretty serious changes and should be avoided unless you are willing to accept that. I've also upped its major revision, version 5. Before making those changes to the mas

If I had to pick an order for step stick stepper driver accuracy in my tests/experience: BEST TMC2130 TMC5160 LV8729 S109 A4988 DRV8825 WORST

So even at 540:1 with 400 step motors the stepper motor/driver inaccuracies are discernible. Now each driver/motor combo is different but overall the S109 didn't impress in my tests... example of accu

It'd be a nice data-point to know what the overall reduction is, stepper motor specs (especially if 200 or 400 step,) stepper drivers used.