Arduino ASCOM Focuser Pro2 DIY / Discussion / General Discussion: DRV8825_M-MT-F-BT-12_pcb problem with the operation of the temperature probe

KoraSan - 2023-11-19

Hello!
I have a problem with the operation of the temperature probe. I'm looking for the error and hope to get help.

HW PCB: M-MT-F-BT DRV8825 myFocuserPro Rev 12.

This PCB can be downloaded from the myFocuserPro2 group link:
https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Gerber%20Files/DRV8825/DRV8825_M-MT-F-BT-12_pcb.jpg

FW Arduino 2.1.1 uploaded by : myFOCUSERPRO2 OFFICIAL FIRMWARE RELEASE 329 (09-Oct-2023)

On the PCB I use:
- Push Buttons,
- Temperature Probe,
- LEDs,
- Buzzer,
- Home Position Switch.
- Some places I use 20x4 LCD is also optional.

Everything compiles and loads fine, no warnings or errors.

Windows client: myFW2W 2.5.0.8.
The error phenomenon is that it does not display a temperature measurement value, the GET request fails and the connection is terminated. Everything else works fine until the temperature call.

other windows client: myFocuserL shows the temperature value well, but it is not suitable, e.g. there is no hwsw management, etc.

Troubleshooting so far:

I hacked the contents of the EPROM with the program found in the test folder according to a suggestion for solving a similar error earlier on the topic.

I tested the temperature sensor operation with the DS18B20 probe test application.
The temperature sensor shows the temperature data well on the serial monitor.

In the log you can see the following line referring to the error "ConnectBtn_Click Set Temperature Compensation State False"

According to the previous similar error search suggestion on the topic

I enabled the DEBUG function in myDefines.h.
According to the serial output, there is temperature data, but at a different address:
LED001
STP001
TMP001
TMP002
TMP003 1
BRD001
BRD002
fcurrentposition=5000,
BRD005
MAS013MAS010BRD005
TMP006
TMP005 23.50
Setup end
STP001
..
STP001
TMP005 23.50
STP001
..
STP001
TMP005 24.50
STP001
..
STP001
TMP005 25.00
..

TMP003 1 can be read on the monitor during the start-up initialization, but the read temperature values are visible after TMP005 25.00 TMP005 lines.

What is the cause of the error?
How can I fix it?

DRV8825_M-MT-F-BT-12_pcb.jpg
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- brownrb - 2023-11-21
  
  Hi
  
  Make sure the firmware has all the DEBUG OFF otherwise the Windows app will fail to connect
  
  For the Windows App,
  Enable logging of Messages on the Logging Tab
  On the Connection tab
  Set OnConnect Send to None
  connect to the Controller
  Click the Temperature Tab
  Click Get
  Wait 10s
  Click Get (Not sure- might disconnect connection after 1st Get of Temperature
  Disconnect (if still connected)
  Exit
  
  Please send me the myFP2WLog-ddmm2023.txt file
  
  Regards
  Robert
  
  You did not say the name of the firmware file you used to program the Controller.
  It should be, for the
  HW PCB: M-MT-F-BT DRV8825 myFocuserPro Rev 12.
  the firmware file would be
  myFP2F_DRV8825_329
  
  One other thing, Arduino IDE is 2.2.1 now
  
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KoraSan - 2023-11-21

Dear brown rb!

This response time is dizzying! ;-)

As requested, I turned on the client program logging option.
( Based on line 508 of the attached log file, I think that the decimal point format of the temperature value is the cause of the error.)
After the temperature query, the connection is immediately disconnected due to the incorrect format, so there is no possibility to request again after waiting.

The content of line 508 when reading the thermometer:
"ReceiveResponse Controller response: Z23.75"

I hope my assumption is correct and this problem is manageable.

I wish you good health, I read you were sick before!

Thanks and regards

Last edit: KoraSan 2023-11-21

myFP2WLog-21112023.txt

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- brownrb - 2023-11-22
  
  Hi
  Just going through tje log file now. I see
  myFP2DRVHW203
  but based on your PCB you should be using
  myFP2F_DRV8825_329
  
  then
  2023.11.21. 14:16:04: Read_tempprobeavailable response = 1
  2023.11.21. 14:16:04: Read_tempprobeavailable Temp probe found
  indicates the probe was found
  
  2023.11.21. 14:16:06: Read_tempprobeavailable Temp probe found
  2023.11.21. 14:16:06: Getconnectvalues Get Temperature Mode, Celsius or Fahrenheit
  
  2023.11.21. 14:16:06: SendString Sending=:06#
  2023.11.21. 14:16:06: SendString Sending=OK
  2023.11.21. 14:16:06: SendString END
  2023.11.21. 14:16:06: ReceiveResponse START
  2023.11.21. 14:16:06: ReceiveResponse client is connected
  2023.11.21. 14:16:06: ReceiveResponse Controller response: Z23.75
  2023.11.21. 14:16:06: Read_temp response = 23.75
  2023.11.21. 14:16:06: Read_temp Error Data Invalid
  2023.11.21. 14:16:06: Getconnectvalues Error Data Invalid
  
  The Controller always uses USCulture what reading a temperature value.
  This is obvious from the Z23.75 (the . is for USCulture. I am talking about the Visual Studio source code for the Windiws app.
  
  It appears that you are not in the USA but in another country that uses the , seperator
  
  Yes, I know the issue. I will make a newwindows app that you can try. I will work on that now.
  
  Regards
  Robert
  
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  - brownrb - 2023-11-22
    
    It is a little bigger than I thought, so I hope to have the update for you to test tommorrow my time (NZ).
    
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brownrb - 2023-11-23

Find attached a windows app 2.5.1.0
Let me know if this resolves your issues (temperature and stepsize)

Regards
Robert

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KoraSan - 2023-11-23

Hello
I downloaded and tested the included Windows 2.5.1.0 application.
During the installation, you can see on a form that Fr culture is set.
This version works without errors!

I am very grateful and thank you!
Your projects are exemplary, for which I heartily congratulate you, and wish you continued good work and good health. Alexander

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brownrb - 2023-11-23

Thanks
I realized that I had left some debug code in (which is why it says Fr culture)
I will need to take that out (else everyone will be using Fr)
and then upload again.

The issue also affected stepsize, so I applied the same fix for that

regards
Robert
PS I have removed the app from the previous post

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DRV8825_M-MT-F-BT-12_pcb problem with the operation of the temperature probe

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DRV8825_M-MT-F-BT-12_pcb problem with the operation of the temperature probe

DRV8825_M-MT-F-BT-12_pcb problem with the operation of the temperature probe

Version 2 of the myFocuser Project

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DRV8825_M-MT-F-BT-12_pcb problem with the operation of the temperature probe