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Re: Wemos R32 Bluetooth

Henk Aling
 

One other thought. You tried a BLE sketch earlier. Be sure you unpair/remove that from your Android device. It may interfere with the Bluetooth Classic connection that OnStep uses.
Thanks Drew, I unpaired and paired all the time so yes the BLE one was no longer there.


Re: Wemos R32 Bluetooth

Henk Aling
 

I was wondering the same, Bluetooth (and I2C for that matter) was broken in early versions of the ESP32 libraries.  Be sure to use version 1.0.4
Unfortunately, I have 1.0.4.


Re: Slewing/GoTo works, poor tracking and guiding

Don Parish
 

I found the problem I have a bridge under header pin motor b1a1. I pulled the driver and it still shorted. 


On Thu, Sep 3, 2020 at 10:43 PM, Henk Aling
<haling@...> wrote:
You really need to provide more information instead of just declaring the mount “sucks”.
I have a nano, it's an eq3 type mount with bushings for both RA and DEC.  It's a great mount for visual.   On SGL is a thread with nice AP results.  But it's a bit of a stretch.


Re: Slewing/GoTo works, poor tracking and guiding

Henk Aling
 

You really need to provide more information instead of just declaring the mount “sucks”.
I have a nano, it's an eq3 type mount with bushings for both RA and DEC.  It's a great mount for visual.   On SGL is a thread with nice AP results.  But it's a bit of a stretch.


Re: so close but yet so far.

Don Parish
 

Yes I can swap 're and Dec cable motor and driver. None work on ax2


On Thu, Sep 3, 2020 at 10:21 PM, Khalid Baheyeldin
<kbahey@...> wrote:
On Thu, Sep 3, 2020 at 10:20 PM, Don Parish wrote:
Yes I swapped cables.
And the problem stayed with the axis in the board, and did not move with
the cable?
If so, then the cables and motors are presumed to be good.


Re: so close but yet so far.

Mike Ahner
 

Hi Don,

I would check all the soldering on the STM32 Bluepill carefully, then I would check the soldering on all of the pcb on the bottom. I think you must have a bad solder joint between the stm32 and the DEC driver pins.

Even if they look like good connections, it wouldn't hurt to touch each pin with a hot soldering iron to reflow the solder again.

But I think it's local to the DEC circuitry only.


Re: so close but yet so far.

Khalid Baheyeldin
 

On Thu, Sep 3, 2020 at 10:29 PM, Don Parish wrote:
I just  reflased the stm32.  No help
Why would that make any difference?

Please stick to the steps recommended, and tell us the results, then you can try other things after that.


Re: so close but yet so far.

Don Parish
 

I just  reflased the stm32.  No help.


On Thu, Sep 3, 2020 at 10:21 PM, Khalid Baheyeldin
<kbahey@...> wrote:
On Thu, Sep 3, 2020 at 10:20 PM, Don Parish wrote:
Yes I swapped cables.
And the problem stayed with the axis in the board, and did not move with
the cable?
If so, then the cables and motors are presumed to be good.


Re: so close but yet so far.

Khalid Baheyeldin
 

On Thu, Sep 3, 2020 at 10:20 PM, Don Parish wrote:
Yes I swapped cables.
And the problem stayed with the axis in the board, and did not move with
the cable?
If so, then the cables and motors are presumed to be good.


Re: so close but yet so far.

Don Parish
 

Yes I swapped cables. 


On Thu, Sep 3, 2020 at 10:18 PM, Khalid Baheyeldin
<kbahey@...> wrote:
Again: did you swap the cable to the motor when you swapped motors/drivers?

Next step is to check continuity from the the A1/B1/A2/B2 pins on the
top of the driver to the end of the cable where it goes into the motor.


Re: so close but yet so far.

Khalid Baheyeldin
 

Again: did you swap the cable to the motor when you swapped motors/drivers?

Next step is to check continuity from the the A1/B1/A2/B2 pins on the
top of the driver to the end of the cable where it goes into the motor.


Re: so close but yet so far.

Don Parish
 

I just checked  continuity on al the pin on your list. All checked good.


On Thu, Sep 3, 2020 at 9:37 PM, Don Parish via groups.io
<dlparish1@...> wrote:
I pulled the stm32 board and driver and checked ax2m0 ax2m1 and ax2m2 I will check the rest. Thanks Don



On Thu, Sep 3, 2020 at 9:31 PM, Khalid Baheyeldin
<kbahey@...> wrote:
On Thu, Sep 3, 2020 at 09:24 PM, Don Parish wrote:
Hi connecting off the 4 pins next to the driver on 're and dec.
If you swapped both the driver and motor, and still got no movement on the DEC axis,
then check the soldering on the pins that go from the STM32 itself to the driver for DEC.

To do so, power off the PCB, and inspect all soldering points with a magnifier.
Then using a multimeter continuity function, check the corresponding pins from
the top of the pin on the STM32 and the driver.

See the schematic diagram here https://onstep.groups.io/g/main/wiki/6408

Check the pins marked AX2DIR, AX2STEP, AX2M2, AX2M1, AX2M0, AX2EN, and
their connections to the driver.

Compare with the same pins for Axis 1 if in doubt.
See if all is connected properly.


Re: so close but yet so far.

Khalid Baheyeldin
 

On Thu, Sep 3, 2020 at 09:37 PM, Don Parish wrote:
I pulled the stm32 board and driver
That is not what I meant, at least not for step two.

Once you visually check the soldering on both sides, the continuity test has to be done with both the
STM32 and driver in place, from the top of the soldered pin to the corresponding one.
This will tell us if the pins are actually conducting.

When you swapped the motors, did you swap the cables with them too?
That will also tell us if the cables are to blame.


Re: CGEM Rehab questions #celestron

Chris Vaughan
 

Good idea. I tried to upload but I can't see that they arrived ..


Re: so close but yet so far.

Mike Ahner
 

On Thu, Sep 3, 2020 at 08:24 PM, Don Parish wrote:
Hi connecting off the 4 pins next to the driver on 're and dec.
You come off the 4 header pins and then how do you connect to the motors? Do you perhaps have a plug & jack on the motors?
It sounds a bit like a bad cable assembly, so to test that I would disconnect the cables at the motors (not the board) and swap them.

Thinking some more, have you checked your solder connections carefully on the DEC driver? A cold or bad solder joint could prevent the driver from working, whereas a bad cable would probably just make the motor buzz loudly. You might find a magnifying glass useful and even a meter to measure continuity. You could also just touch them again with a hot soldering iron to be sure the solder flows good.


Re: so close but yet so far.

Don Parish
 

I pulled the stm32 board and driver and checked ax2m0 ax2m1 and ax2m2 I will check the rest. Thanks Don



On Thu, Sep 3, 2020 at 9:31 PM, Khalid Baheyeldin
<kbahey@...> wrote:
On Thu, Sep 3, 2020 at 09:24 PM, Don Parish wrote:
Hi connecting off the 4 pins next to the driver on 're and dec.
If you swapped both the driver and motor, and still got no movement on the DEC axis,
then check the soldering on the pins that go from the STM32 itself to the driver for DEC.

To do so, power off the PCB, and inspect all soldering points with a magnifier.
Then using a multimeter continuity function, check the corresponding pins from
the top of the pin on the STM32 and the driver.

See the schematic diagram here https://onstep.groups.io/g/main/wiki/6408

Check the pins marked AX2DIR, AX2STEP, AX2M2, AX2M1, AX2M0, AX2EN, and
their connections to the driver.

Compare with the same pins for Axis 1 if in doubt.
See if all is connected properly.


Re: so close but yet so far.

Khalid Baheyeldin
 

On Thu, Sep 3, 2020 at 09:24 PM, Don Parish wrote:
Hi connecting off the 4 pins next to the driver on 're and dec.
If you swapped both the driver and motor, and still got no movement on the DEC axis,
then check the soldering on the pins that go from the STM32 itself to the driver for DEC.

To do so, power off the PCB, and inspect all soldering points with a magnifier.
Then using a multimeter continuity function, check the corresponding pins from
the top of the pin on the STM32 and the driver.

See the schematic diagram here https://onstep.groups.io/g/main/wiki/6408

Check the pins marked AX2DIR, AX2STEP, AX2M2, AX2M1, AX2M0, AX2EN, and
their connections to the driver.

Compare with the same pins for Axis 1 if in doubt.
See if all is connected properly.


Re: so close but yet so far.

Don Parish
 

Hi connecting off the 4 pins next to the driver on 're and dec.


On Thu, Sep 3, 2020 at 9:06 PM, Khalid Baheyeldin
<kbahey@...> wrote:
So symptom is: no movement at all on DEC axis.

What about how you connected the motors?
See my earlier message for the full question.


Re: so close but yet so far.

Khalid Baheyeldin
 

So symptom is: no movement at all on DEC axis.

What about how you connected the motors?
See my earlier message for the full question.


Re: so close but yet so far.

Don Parish
 

Hi when I slew no motor movement from Dec at all just ra.  It tracks 'it flashing red led and 're motor tracks movment. If you turn off tracking ra motor stops moving.
 Thanks. Don



On Thu, Sep 3, 2020 at 8:29 PM, Mike Ahnerrn off
<mahner@...> wrote:
On Thu, Sep 3, 2020 at 07:18 PM, Don Parish wrote:

ra works fine dec dose not move at all. switch drivers and motors did not make any difference.
it dose goto and ra motor tracks but no life from dec motor,
These statements are somewhat confusing. Does a goto move both Dec and RA or just RA?
I would assume only RA does goto, but it's best to be very clear.