The updates to the firmware are still coming thick and fast. The latest Firmware is now 2.4. I was having some communication problems with 2.2 and 2.3 but 2.4 looks to have solved them.

The Dew tab now looks like this.



I will add something similar for the USB tab too.

Hi,

Good job!

Regards

Looks like we may have to loose the Led Off functionality for the UPB V2 after all.
I have the latest version of the Serial communication protocol and this is stated by Pegasus:

ON/OFF Led Indicator (0=OFF, 1=ON)
DO NOT USE THIS AS STEPPER MOTOR IC
RELIES ON THIS SIGNAL PIN (KEEP LED
ALWAYS ON) – LED OFF SETS MOTOR TO
SLEEP IN NEW PCB REVISIONS (>=RevC)

I could disable it for V2 or print this warning if you switch it Off.
Does anyone have a preference?

Get rid of it for me, as I leave it on anyway, and if the setting is there and it’s accidentally turned off, it will cause real issues for people...so remove it I say...

BTW, you are doing an awesome job....well done and a big thanks....

Can you have a look at the focuser backlash, as I dont understand why it only applies backlash in one direction, also am I wrong in thinking that when using 70 steps of backlash (my setting) then that will throw the overall step count out, the as the backlash moves are not counted in the overall step count...?? Or am I missing something here....?.

Thanks. Strangely all the backlash setting code has been commented out in the driver.
The principle is that the driver just sets the backlash in the UPB, there is no logic in our driver.

I will check with Jasem why he did that. Possibly it did not work in a pervious firmware version.

The code is smarter than I thought. The full implementation for the focuser is implemented.

As I mentioned above the Indi driver simply sets the backlash, all the logic is in the UPB V2. Might be worth trying the new firmware. There have been a lot of changes.

Yes got latest FW, but still the same, and Pegasus no help whatsoever.....

Found this on the Pegasus site. Its about the cube but I guess its how they deal with backlash:

Compensation will be invoked when the move in opposite of the compensation direction. For
example, if you select “IN” then on every “OUT” move, the compensation will be invoked such
that the focuser will be moved out by the amount specified and then in by that amount to
remove the backlash. There is no need to be exact about the amount of compensation to use.
Just make sure the amount specified is more than needed to remove the backlash.
To enable backlash compensation, choose the extra steps you need to calculated in
compensation, select the direction of it and click the “On” check box.
.

Hi,
Yes I know how to use it, my issue is that it does not seem to work as it should...first of all in the INdI driver there is no option to set “in” or “out” and second for example, if I move the focuser 500 steps out, and the Backlash is set to 100 then I have only actually moved 400, but the 100 backlash steps are not counted in the actual position, not taken into account in the move, it will show that you have moved 500 steps, which is wrong, so at some point the figures shown in the stepper motor settings are going to be way out..and repeatability will not be possible without re setting everything...

And am I correct in thinking that is you set it to “in” then backlash compensation will only be used on the IN movement and NOT on the OUT movement...is that what you were saying...if so why, you bet backlash on every move, in or out when changing direction...?.

To be honest I not sure exactly what this means.

I agree it seems odd that they have the concept of a direction for the cube but the API for the UPB only lets us set the number of steps:

"SB:nnn..
Stepper Backlash Steps (0 = disable, any other positive number sets backlash steps)"

I also get these errors very often from the UPB driver when in use...

Since I upgraded to the latest firmware I don't get those anymore.
What firmware are your on. 2.4 is the one that fixed it for me.