Date   

Re: PHD2 guide -microstep rate shifting

Howard Dutton
 

On Tue, Oct 19, 2021 at 06:35 PM, Lloyd Simons wrote:
Well Howard, I think 4.24m was a partial success. While it seems the guide rate may no longer be an issue (yay!), now the tracking rate is being set too high.
Basically zero chance NINA is changing the tracking rate in OnStep.

After an initial slew in NINA, everything is fine. If I try to plate solve and the mount needs to slew to center the coords, the tracking rate is set too fast and the stars are streaked. The only way I could get the rate to go back to normal was by slewing to another target. I was able to repeat this several times. It appears NINA may use different commands for these different slews.
There are two ways to slew (fast motion) in OnStep a goto or a guide.

Last night (4.24g), when I observed this behavior I could press one of the manual move buttons in NINA and the tracking rate would return to normal. This failed tonight.
The rate returning to normal after a guide request seems to indicate that a guide was happening to begin with.

However, when the mount was tracking properly, the guide rate always worked as expected
As an experiment I'd set GUIDE_TIME_LIMIT 5 (seconds) in Config.h and see if that (kind of) fixes the issue.  If so, we can then look into why the guide isn't being stopped.


Re: Wifi

marorte otero
 

If right now I have it as you have indicated but with the pin at 5v and it keeps flashing without wanting to connect. Thanks


Re: Wifi

George Cushing
 

Sorry the 5V line should go to the 5V pin!


Re: Onstep and ASIAIR works?

ybaransky
 

I believe I got it to work using the LX200 mount setting, but after playing around I did not pursue making it part of my workflow.  But I was using the instein branch of OnStep. Which is both old and different from the mainline. -yurij


Re: Wifi

barsuk.neo@...
 

In the diagram, the orange wire from the shield is shown coming not from 5V, but from DIR A.


Re: Onstep and ASIAIR works?

"Guilherme Vênere
 

Wasn't there a bug in how ASIAIR/Ekos handled status updates from OnStep and got fixed in some newer version? I'm sure there are some messages about this in the group, I remember Khalid discussing it

Guilherme
 

On Wed, Oct 20, 2021 at 8:23 AM David Summa <dave@...> wrote:
Interested in this. So far, I’ve had no success using Air Pro.  Mount starts to slew (maybe 20 degrees) then stops.  Air reports it is continuing to move but it is not.  Initiating a Home command results in no motion but Air Pro reports normal movement.   I must reboot to get any motion again, but cycle repeats reproducibly.  ZWO has added the 2 telescope settings (OnStep Electronic and OnStep beta) but I have no success yet with either after trying all setting combinations.  

Regards,
Dave

On Oct 20, 2021, at 7:48 AM, Richard Shagam via groups.io <rnshagam=rhizotech.net@groups.io> wrote:

For that matter, has anyone used the AISIAIR (any version) with OnStep?


Re: Wifi

marorte otero
 

Hello George, I am testing what you have sent me and it does not work, I am with the multimeter and it has no power. Thanks


Re: Onstep and ASIAIR works?

David Summa <dave@...>
 

Interested in this. So far, I’ve had no success using Air Pro.  Mount starts to slew (maybe 20 degrees) then stops.  Air reports it is continuing to move but it is not.  Initiating a Home command results in no motion but Air Pro reports normal movement.   I must reboot to get any motion again, but cycle repeats reproducibly.  ZWO has added the 2 telescope settings (OnStep Electronic and OnStep beta) but I have no success yet with either after trying all setting combinations.  

Regards,
Dave

On Oct 20, 2021, at 7:48 AM, Richard Shagam via groups.io <rnshagam@...> wrote:

For that matter, has anyone used the AISIAIR (any version) with OnStep?


Re: Wifi

George Cushing
 

This should work: 



The problem may be that the 5V tap on the CNCV3 may not have enough current to drive both the D1 R32 and the ESP8266 module. The ESP8266 can draw over half an amp and the 5V regulator on the D1 R32 is only rated for 1.5A. you may need to add a 5V regulator for the ESP8266.


Re: Onstep and ASIAIR works?

 

For that matter, has anyone used the AISIAIR (any version) with OnStep?


Re: G11 Astrophotography

George Cushing
 

Henk, I don't think you mean 24V motors. Rather motors operating at 24V, i.e., 24v VCC/MOTV.

If we take a 1.3A, 4.3V NEMA 17 and drive it with 12V we get 15.6W power. Double the VCC to 24V and we still only need 1.3A, but power goes to 31.2W which means twice the torque.



Re: Wifi

marorte otero
 

I am sending you the scheme, that previously I do not know what happened that does not come out


Re: Wifi

marorte otero
 


Re: Wifi

 

The blinking blue light means OnStep is not communicating with the Wemos.  It could be many issues.  Could you:

1) Post your Config.h file
2) Post a picture of your wiring diagram from the CNC to the Wemos?


Re: PHD2 guide -microstep rate shifting

Lloyd Simons
 

Well Howard, I think 4.24m was a partial success. While it seems the guide rate may no longer be an issue (yay!), now the tracking rate is being set too high. After an initial slew in NINA, everything is fine. If I try to plate solve and the mount needs to slew to center the coords, the tracking rate is set too fast and the stars are streaked. The only way I could get the rate to go back to normal was by slewing to another target. I was able to repeat this several times. It appears NINA may use different commands for these different slews. Last night (4.24g), when I observed this behavior I could press one of the manual move buttons in NINA and the tracking rate would return to normal. This failed tonight. However, when the mount was tracking properly, the guide rate always worked as expected.


Onstep and ASIAIR works?

 

Hi,

Does anyone have tested the PCBMAX2 (Teensy 3.6) and PCBMIN (Teensy 3.2)  with the ZWO ASIAR?

Best
Andre


Wifi

marorte otero
 

Hello, very good, after all day trying everything, I am not able to connect the CNCV3 module, I have installed SmartWebServer to the wemos d1 mini esp8266, I have installed the Onstep firmware sometimes and when I connect it to the power supply it stays blinking and does not connect but nevertheless I connect it to the pc through the USB it connects perfectly to the phone even to the pc, I do not understand what may be happening I am frustrated, someone help me. All the best


Re: G11 Astrophotography

GuitsBoy
 

Hi Jesse -

I use my G11 almost exclusively for AP, and I've had very good luck with it so far.  I'm about 30 miles outside NYC, so not the best skies, but the mount has no troubles guiding all night long in the .5 to .6 range.   With good conditions, and a favorable location in  the sky, Ive seen .3 rms a bunch of times. 

Now to be fair, I have a number of mods done to my G11.  I have 1:3.75 belt drives, tucked motor mounts, homebrew spring loaded worms, new HP brass worm in the RA, bellows couplings, etc.  I'm not sure I would have had as much luck with direct drive steppers.

This was my graph from a couple weeks ago, the last time we had clear skies.  I believe I was shooting the North America nebula at the time, but I'm not positive.  This is with a 240mm focal length guidescope.  I have an OAG, but have been reluctant to try it yet.  The mount was carrying an AT72EDii refractor and DSLR at the time, but I've seen similar guiding numbers carrying 30+ Lb 8" newt.

I also have an EXOS2 PMC8 mount that I almost never use because I don't like the featureset of the ASCOM drivers, most notably the lack of limits.  I do plan on moving the mount over to OnStep when I have a chance.

With a little love and tweaking, I'm sure the G11 will do quite well for you.

Good luck,
-Tony



On 10/19/2021 10:28 AM, Jesse Lichtenberg wrote:

Good morning everyone,

I am setting up a purchase of a G11 and I was wondering if I could chat with someone on here who has used theirs with OnStep for astrophotography. I know there are several apart from Howard himself who have gone down this road.

I use an Exos-2 with OnStep at the moment, but I'm wanting to size up and the G11 seemed like a great fit. By a happy coincidence, the unit I'm looking at is already outfitted with OnStep via the Blue Pill. However, the gentleman who is selling it has not used it extensively for astrophotography. 

Thank you all!


Re: G11 Astrophotography

 

Hi Jesse.  I bought a G11S (with the 492 non-goto controller) and tried EQStar first then ended up with OnStep.  What I found, working with my 12" Newt of 48 lbs, is that you need stronger motors than the average and/or a timing belt for additional torque and resolution.  The problem is that the incremental torque decreases exponentially with the micro steppping factor.  So consider 24 V motors.  I recommend steppers that support mode switching like the TMC2130 that I use.  Personally I prefer to have a minimal OnStep implementation (motor control and Bluetooth) and leave the higher level stuff to Ekos on the Pi, which can conveniently be placed next to it.  Good luck and let us know how it goes.  You may also sign up for the Losmandy board because there are several OnSteppers there too.


G11 Astrophotography

Jesse Lichtenberg
 

Good morning everyone,

I am setting up a purchase of a G11 and I was wondering if I could chat with someone on here who has used theirs with OnStep for astrophotography. I know there are several apart from Howard himself who have gone down this road.

I use an Exos-2 with OnStep at the moment, but I'm wanting to size up and the G11 seemed like a great fit. By a happy coincidence, the unit I'm looking at is already outfitted with OnStep via the Blue Pill. However, the gentleman who is selling it has not used it extensively for astrophotography. 

Thank you all!

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