Date   

Re: Reuse ST4 Pins #lx200 #maxesp3

Chris K.
 

Thanks Howard. I'm aware of that limitation. So the plan is to use:

LIMIT_SENSE - GPOI#34 (input)
LED_STATUS - GPIO#32 (IO)
BUZZER - GPIO#33 (IO)
LED_STATUS2 - GPIO#2 (IO - onboard LED)
PPS_SENSE - Aux 7
DS1820 - Aux 8 (OTA Tube Temp)
PEC - GPIO#36

Note this is on MaxESP3. I'll need to do a bit of hacking on the board, but really very minor stuff.

When done, I'll post a detailed LX200 conversion page, including the mechanics (STL/ STEP models), BOM etc. to my website www.NLobs.com.

Chris


Re: Wierd one: Wemos D1 Mini + MKS Gen L v.2.0 - sudden serial loss

 
Edited

On Tue, Sep 29, 2020 at 05:05 PM, Jamie Flinn wrote:
So it is the USB connection by (in this case) INDI/EKOS that does something internally to break the serial connection to wemos - it FEELS like a choice of either computer control or remote control but not both at same time and it is not dynamically corrected.

This is a common problem upon USB devices like we use here, that do not use the USB power, but only need a data connection. At the moment I had the same problem with my MKS 2.0 I reactivated for an older mount. So I just stumbled upon this thread.

 

This problem can be solved very easily: just remove the 5V pin from your USB connector. Preferably, I do this on the USB-A connector. Take a little screwdriver and leverage the pin out, then go straight to the "end/back" of the pin with the screwdriver and push it down, side wards, until it breaks. That's it. Now you have a "data-only" USB cable. Some people also use adhesive tape, but I don't like this. I also mark the cable as "data only" cable.

See https://en.wikipedia.org/wiki/USB_hardware for pins and where the 5V pin is located.

 

I also do this for all my 3D-Printer devices where I had sudden disconnects. Since then no probs at all :-)

Cheers, Axel

 

 


Re: Spreadsheet : microsteps 16,32,64 only. Why?

Howard Dutton
 

Oh so that's where the problem is, thanks.


Re: Spreadsheet : microsteps 16,32,64 only. Why?

George Cushing
 


Re: Servo oscillations during tracking - PID issue or latency in encoder's interrupt handling?

Panagiotis Papadakos
 

Currently, I have it at 25.

Btw do you think we could also add PID_SAMPLE_TIME_US to the SWS?

On Thu, May 25, 2023 at 3:29 PM Howard Dutton <hjd1964@...> wrote:
Glad its working for you again.

I posted about AXISn_PID_SENSITIVITY below as I assumed you would want to set it to something other than 0 as that was best for DC motors in my experience.

There was a bit of unfinished code relating to AXISn_PID SENSITIVITY == 0 and the switching between PID parameters under certain circumstances, that should be resolved now as well.


Re: Spreadsheet : microsteps 16,32,64 only. Why?

George Cushing
 

With 48 full steps, 120:1 and 144:1, 16 µsteps can get up there in 
steps/°. I usually find 8 is just right and then run StealthChop. 

A drive that actually jumped around on the bench when driven by the Synta controller becomes silent.


Re: Rotator Home Switch

Chad Gray
 

Looking good!

A few feature requests for you to think about.  

When you push find home take away limits so the rotator can go past the current position in the direction it needs to go.

After home is found, set position to 180degree automatically.

THanks again!!
Chad

On Sat, May 27, 2023 at 8:39 AM Chad Gray <rchadgray@...> wrote:
OK thanks Howard!  I will give it another try.

Chad

On Sat, May 27, 2023 at 8:35 AM Howard Dutton <hjd1964@...> wrote:
On Fri, May 26, 2023 at 04:53 PM, Chad Gray wrote:
I will keep testing.
Unintended side effect of fixing the stop command behavior was to break the 3-stage homing.  I fixed that and its working as intended for me again now.


--
Authorized OnStep Dealer and Creator of the CGE Pro Conversion Kit
https://graydigitalarts.com/


Re: Rotator Home Switch

Chad Gray
 

OK thanks Howard!  I will give it another try.

Chad

On Sat, May 27, 2023 at 8:35 AM Howard Dutton <hjd1964@...> wrote:
On Fri, May 26, 2023 at 04:53 PM, Chad Gray wrote:
I will keep testing.
Unintended side effect of fixing the stop command behavior was to break the 3-stage homing.  I fixed that and its working as intended for me again now.


--
Authorized OnStep Dealer and Creator of the CGE Pro Conversion Kit
https://graydigitalarts.com/


Re: Spreadsheet : microsteps 16,32,64 only. Why?

Arnaud Frenchy
 

Thanks Howard. 
Weirdly, the link did not work for me either, looping back to the main site. Heading to files now to pick up an "official" copy 👍

On Sat, 27 May 2023, 13:31 Howard Dutton, <hjd1964@...> wrote:
On Sat, May 27, 2023 at 05:08 AM, Szőllősi Tamás wrote:
a Configuration Calculator spreadheat  link it doesn't work for me
Tons of users download from my site, so not sure why that would be, but I added it to the files area here on Groups.io as well.


Re: Rotator Home Switch

Howard Dutton
 

On Fri, May 26, 2023 at 04:53 PM, Chad Gray wrote:
I will keep testing.
Unintended side effect of fixing the stop command behavior was to break the 3-stage homing.  I fixed that and its working as intended for me again now.


Re: Spreadsheet : microsteps 16,32,64 only. Why?

Howard Dutton
 

On Sat, May 27, 2023 at 05:08 AM, Szőllősi Tamás wrote:
a Configuration Calculator spreadheat  link it doesn't work for me
Tons of users download from my site, so not sure why that would be, but I added it to the files area here on Groups.io as well.


Re: Spreadsheet : microsteps 16,32,64 only. Why?

Szőllősi Tamás
 

a Configuration Calculator spreadheat  link it doesn't work for me


Re: Negative Longitude values from GPS module?

digitalangel92@...
 

Ooohhh now I understand!!! Thank you so much I was very upset with the gps module getting wrong coords 🤣


Re: Negative Longitude values from GPS module?

hitosi sato
 

This setting is a specification for the LX200 protocol.
Set west to positive and east to negative.
If you connect onstep to your laptop application, you will see that it is the correct observing location.
Note that the NTC offset is also the opposite of normal.
There is a reminder on the settings screen as to which is positive.


Re: Negative Longitude values from GPS module?

digitalangel92@...
 

I'm Italian... OnStep reports -10... 
But why ? Any gps app on my phone reports the same values but with +10... Is there some kind of standard rule that I'm missing ? 


Re: OnStep Calculations Program ?

 

On Fri, May 26, 2023 at 09:58 PM, George Cushing wrote:
3. The Bluepill is the least capable, next would be the MaxESP3/4,then MaxSTM. the MiniPCB2 with the Teensy 4.0 is faster but feature poor, best of both worlds is the MaxPCB 3.6/4. The 3.6 is "obsolete". You will need the old pinmap for it. 4 variants can be ordered with most of the assembly done. Teensy 4.1 runs 4X the speed of the other Max controllers. I would say they all perform well. The major difference is in the number of features. As you have invested in the Air many features can be controlled with it. This makes completing the MiniPCB2 sensible. It is compact and fast. While the all the controllers have object databases, sizable databases are provided from your phone, tablet, pc or the Smart Hand Control. I believe that the Air also has a database. 
1. Teensy 4.0 is faster but feature poor,  such as ?   # i have board with every component except Teensy 4.0 which is most expansive....
2. Only have BluePill STM32F103C8T6  # i have bulepill board with everything.. just having difficult uploading the FW OnStep release-4.24... maybe is STM32F103C8T6 dont support ...
   am try to get RobotDyn STM32F303CCT6. also no luck...
3. u mean minipcb2 is more then enough with ASIAIR?
4. mainly need able to track star /luna /sun/ guiding /asiair /goto skysafari is more then enough for me....


Re: Negative Longitude values from GPS module?

hitosi sato
 

Hi
 West is + EAST is -, doesn't that match?


Re: Rotator Home Switch

Chad Gray
 

That was at 2deg/sec.  at 1deg/sec it is more accurate and so far has not fallen off of the 0 or 360 end of my cam.

I will keep testing.

Chad


On Fri, May 26, 2023 at 7:02 PM Chad Gray <rchadgray@...> wrote:
Yeah the single click is not quite accurate enough at least for the cam i designed for the back and forth fine tuning.

If i do find home from the low side it clicks and continues ever so slightly to the high side.  So if i do goto 0 it is fine.  If i do goto 360 it falls off.

Then if i do find home from the high side and it clicks and goes slightly to the low side I get the opposite.  Goto 0 and it falls off. Goto 360 and it is fine.

Chad



On Fri, May 26, 2023 at 6:39 PM Chad Gray <rchadgray@...> wrote:
Close... when i click find home the motor does turn to find the switch.  It stops after finding the switch the first time.  You push find home again and it turns the other direction to find the switch and it finds it and stops again.

It does not do it's back and forth to fine tune the home position.  I would have to test some more to see if this is accurate enough.  I have found since i am doing a full access to 360 my "cams" have to be perfectly opposite on the switch click.  If they are not when you try goto 360 or 0 the switch can fall off the "cam" bump and now if you do find home you will get a cable wrap.

It seems now globally the back and forth fine tuning is not being done any more.

Chad

On Fri, May 26, 2023 at 5:21 PM Chad Gray <rchadgray@...> wrote:
OK i will download and test it out.

Thanks for the modifications and updates.  :)

Chad

On Fri, May 26, 2023 at 5:20 PM Howard Dutton <hjd1964@...> wrote:
Think this should homing issue should be resolved now.


--
Authorized OnStep Dealer and Creator of the CGE Pro Conversion Kit
https://graydigitalarts.com/


Negative Longitude values from GPS module?

digitalangel92@...
 

Hello, i've managed to setup my Fysetc S6 with OnStep 4.24 ,SWS and a ATGM336H GPS module... seems working well and getting a fix , latitude coords seems ok but the longitude is somehow reversed (- in front of the value)... How do i fix that?
Thank you!

Marco!


Re: Rotator Home Switch

Chad Gray
 

Yeah the single click is not quite accurate enough at least for the cam i designed for the back and forth fine tuning.

If i do find home from the low side it clicks and continues ever so slightly to the high side.  So if i do goto 0 it is fine.  If i do goto 360 it falls off.

Then if i do find home from the high side and it clicks and goes slightly to the low side I get the opposite.  Goto 0 and it falls off. Goto 360 and it is fine.

Chad



On Fri, May 26, 2023 at 6:39 PM Chad Gray <rchadgray@...> wrote:
Close... when i click find home the motor does turn to find the switch.  It stops after finding the switch the first time.  You push find home again and it turns the other direction to find the switch and it finds it and stops again.

It does not do it's back and forth to fine tune the home position.  I would have to test some more to see if this is accurate enough.  I have found since i am doing a full access to 360 my "cams" have to be perfectly opposite on the switch click.  If they are not when you try goto 360 or 0 the switch can fall off the "cam" bump and now if you do find home you will get a cable wrap.

It seems now globally the back and forth fine tuning is not being done any more.

Chad

On Fri, May 26, 2023 at 5:21 PM Chad Gray <rchadgray@...> wrote:
OK i will download and test it out.

Thanks for the modifications and updates.  :)

Chad

On Fri, May 26, 2023 at 5:20 PM Howard Dutton <hjd1964@...> wrote:
Think this should homing issue should be resolved now.


--
Authorized OnStep Dealer and Creator of the CGE Pro Conversion Kit
https://graydigitalarts.com/