Hi Robert I wonder if you might be able to help, I have built the focuser with OLED,Buttons,Temp probe. While I am getting the temp probe readings I don't seem to be able to get the Temp comp working. In the windows app the TC Available tick box is ticked but grayed out. If I do Extra settings/Temp Comp/Get Temp comp it returns Temp Comp on along with the coefficient and direction false which looks fine. However If I try to calibrate it and force a 3+ degree change on the temp probe i don't get any prompt to refocus after the initial prompts. If I turn TC on and change the probe temp there isn't any movement from the stepper motor and the step count display stays the same.
I am using
Windows app 2.4.5.9
Ascom Version 276
Arduino Firmware
// myfocuser DRV8825 OLED
// ONLY FOR USE DRV8825 HW203 OLED ONLY - supports 1.5A at 12VDC and microstepping
// BIPOLAR STEPPER MOTORS ONLY
// SUPPORTS PUSH BUTTONS, BUZZER, LEDS, TEMPERATURE PROBE, BLUETOOTH, ROTARY ENCODER, INRARED CONTROLLER, HOME POSITION SWITCH
The focuser works in all other respects including the OLED display and has been a fantastic asset on to my equipment. Thanks for any help you may be able to provide.
I have attached the Firmware in case I have missed any changes I needed to make I renamed it Mikes focuser so I know which file I have customized for my build.
Thanks again Mike
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Hi Robert have changed to firmware 304 but still cant set Temp coefficient and the proceedure still doesnt prompt me when 3 degree temp change is achieved.
Last edit: Michael O'Brien 2021-01-25
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TC Available tick box is ticked but grayed out?
TC available is a read only box. A user cannot change its state because it is under the control of the controller, not the user. So if temp comp is available by the controller, this box will be ticked - and greyed out. if temp comp is not availble in the controller, then this box willnot be ticked, but will also be greyed out.
still cant set Temp coefficient?
On the Windows app, Temperature tab, have you checked Update on Connect in the Temperature Compensation group?
Start the Windows app.
Enable Log Errors on the Logging tab
Connect to the focus controller
After connection, click on - from Menu Extra Settings, Temperature Compensation, Get temperature Compensation Settings from controller
Wait 5s
Then disconnect ftom the controller
Then send me the error log file.
Last edit: brownrb 2021-01-26
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From: brownrb
Sent: 26 January 2021 03:23
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Temp Compensation not working
On the Windows app, Temperature tab, have you checked Update on Connect in the Temperature Compensation group?
Start the Windows app.
Enable Log Errors on the Logging tab
Connect to the focus controller
After connection, click on - from Menu Extra Settings, Temperature Compensation, Get temperature Compensation Settings from controller
Wait 5s
Then disconnect ftom the controller
Then send me the error log file.
which shows temp coefficient is set to 118 steps, temp compensation is OFF and the temp compensation direction is False
The next step to enable the focuser to enter temperature compensation mode I cannot see in the log file.
This would be
1. goto temperature tab
2. check TC ON/OFF checkbox
Doing that would send the command to the controller to start "Temperature Compensation" mode
I also cannot see where you might have tried to determine the temp coefficient setting.
So to help me further
1. Connect to the focuser, with logging enabled
2. After connection, goto the temperature tab and check the TC ON/OFF checkbox
3. Use the menu setting - Extra Settings - Temperature Compensation - Get temperature compensation settings from controller
I would expect to see that temp compensation as enabled.
Next:
1. Use the menu setting - Extra Settings - Temperature Compensation - Disable temperature compensation
2. Then, use the menu setting - Extra Settings - temperature Compensation - Calculate temperature Coefficient
and follow the steps outlined and follow through as far as you can get - (the procedure is outlined in the PDF pg 150 onwards), - during which you should see status messages related to the temperature readings every few seconds - this code waits for the temperature to drop by 3 degrees, if it does not it will wait forerver -
So normally this is how you would do this - set up the telescope just before dusk - you only need a connection to the focuser, not the mount. Occassionaly every 30s or so monitor the temperature. You need to position the probe to measure the temperature of the focuser tube, of course for a SCT there is no focuser tube so I used to mount the probe about half way down the telescope tube between the front corrector plate and the rear of the SCT.
When you see the temperature start to fall, As the sun goes away, start the temperature compensation from the menu
Once completed (or as far as you get), then exit the application and post the log file for me to review.
Last edit: brownrb 2021-01-29
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Hi Robert still no luck I get to the wait until you are re prompted message but I am never re prompted I can see the temp refresh timer started and the reported temp in the status message box. I then warm/ cool the temp probe and see a temp change of >3 degrees but never get any prompts to continue beyond that point.
Thanks again
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 29 January 2021 04:37
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Temp Compensation not working
The .png picture I cannot see - it appears blank?
28/01/2021 23:18:11: Connect: Get if TempComp Available
28/01/2021 23:18:11: Connect: response = A1#
28/01/2021 23:18:11: Connect: Get status of temperature compensation
28/01/2021 23:18:11: Connect: response = 10#
28/01/2021 23:18:11: Connect: Get TempPrecision
28/01/2021 23:18:11: Connect: response = Q9#
tells me that the controller recognizes the temperature probe nd that temperature compensation is available.
When you did the get tempcomp I see
28/01/2021 23:18:29: getTempCompSetting:: Get temp conp status
28/01/2021 23:18:29: getTempCompSetting:: response = 10#
28/01/2021 23:18:29: getTempCompSetting:: Get temperature coefficient
28/01/2021 23:18:29: getTempCompSetting:: response = B118#
28/01/2021 23:18:29: getTempCompSetting:: Get temp comp direction
28/01/2021 23:18:29: getTempCompSetting:: response = k0#
28/01/2021 23:18:29: getTempCompSetting:: TempCompSettings: Temperature compensation is Off. Coefficient = 118. Dir = False
which shows temp coefficient is set to 119 steps, temp compensation is OFF and the temp compensation direction is False
The next step to enable the focuser to enter temperature compensation mode I cannot see in the log file.
This would be
1. goto temperature tab
2. check TC ON/OFF checkbox
Doing that would send the command to the controller to start "Temperature Compensation" mode
I also cannot see where you might have tried to determine the temp coefficient setting.
So to help me further
1. Connect to the focuser, with logging enabled
2. After connection, goto the temperature tab and check the TC ON/OFF checkbox
3. Use the menu setting - Extra Settings - Temperature Compensation - Get temperature compensation settings from controller
I would expect to see that temp compensation as enabled.
Next:
1. Use the menu setting - Extra Settings - Temperature Compensation - Disable temperature compensation
2. Then, use the menu setting - Extra Settings - temperature Compensation - Calculate temperature Coefficient
and follow the steps outlined and follow through as far as you can get - (the procedure is outlined in the PDF pg 150 onwards), - during which you should see status messages related to the temperature readings every few seconds - this code waits for the temperature to drop by 3 degrees, if it does not it will wait forerver -
So normally this is how you would do this - set up the telescope just before dusk - you only need a connection to the focuser, not the mount. Occassionaly every 30s or so monitor the temperature. You need to position the probe to measure the temperature of the focuser tube, of course for a SCT there is no focuser tube so I used to mount the probe about half way down the telescope tube between the front corrector plate and the rear of the SCT.
When you see the temperature start to fall, As the sun goes away, start the temperature compensation from the menu
Once completed (or as far as you get), then exit the application and post the log file for me to review.
Focuser supports temperature compensation
29/01/2021 23:14:53: Connect: Get status of temperature compensation
29/01/2021 23:14:53: Connect: response = 10#
Temperature compensation is off
29/01/2021 23:14:54: Connect: Get Temperature
29/01/2021 23:14:54: Connect: Send command to focuser
29/01/2021 23:14:54: Connect: response = Z23.0#
Temperature is 23.0
29/01/2021 23:15:18: getTempCompSetting:: Get temp conp status
29/01/2021 23:15:18: getTempCompSetting:: response = 11#
29/01/2021 23:15:18: getTempCompSetting:: Get temperature coefficient
29/01/2021 23:15:18: getTempCompSetting:: response = B232#
29/01/2021 23:15:18: getTempCompSetting:: Get temp comp direction
29/01/2021 23:15:18: getTempCompSetting:: response = k0#
temperature compensation now ON
temperature cofficient - motor steps per degree = 232
temp compensation direction = 0
This is where things go wrong
29/01/2021 23:16:20: CalculateTemperatuerCoefficient:
You clicked on the Menu Item calculateTemperatureCoefficient
=START=========================================================
29/01/2021 23:16:20: CalculateTemperatuerCoefficient: DIVIDE BY ZERO EXCEPTION
System.DivideByZeroException: Attempted to divide by zero.
at myFocuserPro2.Focuser.calculateTemperatureCoefficientMenuItem_Click(Object sender, EventArgs e)
This is an error::::::::
YOU SHOULD HAVE CLICKED START RECORDING FROM THE MENU
I MAY HAVE TOLD YOU TO CLICK THE WRONG MENU OPTION
START RECORDING IS WHAT YOU SHOULD HAVE CLICKED
The calculateTemperatureCoefficient menu option can only be clicked
when you have readings - so it fails because no readings were taken -
because it is "start recording" that takes the readings first
PLEASE RETRY EXERCISE WITH THE CORRECTED MENU OPTION AND POST THE LOGFILE
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi Robert
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 30 January 2021 11:49
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
My Bad
Focuser supports temperature compensation
29/01/2021 23:14:53: Connect: Get status of temperature compensation
29/01/2021 23:14:53: Connect: response = 10#
Temperature compensation is off
29/01/2021 23:14:54: Connect: Get Temperature
29/01/2021 23:14:54: Connect: Send command to focuser
29/01/2021 23:14:54: Connect: response = Z23.0#
Temperature is 23.0
29/01/2021 23:15:18: getTempCompSetting:: Get temp conp status
29/01/2021 23:15:18: getTempCompSetting:: response = 11#
29/01/2021 23:15:18: getTempCompSetting:: Get temperature coefficient
29/01/2021 23:15:18: getTempCompSetting:: response = B232#
29/01/2021 23:15:18: getTempCompSetting:: Get temp comp direction
29/01/2021 23:15:18: getTempCompSetting:: response = k0#
temperature compensation now ON
temperature cofficient - motor steps per degree = 232
temp compensation direction = 0
This is where things go wrong
29/01/2021 23:16:20: CalculateTemperatuerCoefficient:
You clicked on the Menu Item calculateTemperatureCoefficient
=START=========================================================
29/01/2021 23:16:20: CalculateTemperatuerCoefficient: DIVIDE BY ZERO EXCEPTION
System.DivideByZeroException: Attempted to divide by zero.
at myFocuserPro2.Focuser.calculateTemperatureCoefficientMenuItem_Click(Object sender, EventArgs e)
This is an error::::::::
YOU SHOULD HAVE CLICKED START RECORDING FROM THE MENU
I MAY HAVE TOLD YOU TO CLICK THE WRONG MENU OPTION
START RECORDING IS WHAT YOU SHOULD HAVE CLICKED
The calculateTemperatureCoefficient menu option can only be clicked
when you have readings - so it fails because no readings were taken -
because it is "start recording" that takes the readings first
PLEASE RETRY EXERCISE WITH THE CORRECTED MENU OPTION AND POST THE LOGFILE
Hi Robert
Resending this message as I am not sure the log file attached to the last one.
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: Michael O'Brien
Sent: 30 January 2021 13:00
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
Hi Robert
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 30 January 2021 11:49
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
My Bad
Focuser supports temperature compensation
29/01/2021 23:14:53: Connect: Get status of temperature compensation
29/01/2021 23:14:53: Connect: response = 10#
Temperature compensation is off
29/01/2021 23:14:54: Connect: Get Temperature
29/01/2021 23:14:54: Connect: Send command to focuser
29/01/2021 23:14:54: Connect: response = Z23.0#
Temperature is 23.0
29/01/2021 23:15:18: getTempCompSetting:: Get temp conp status
29/01/2021 23:15:18: getTempCompSetting:: response = 11#
29/01/2021 23:15:18: getTempCompSetting:: Get temperature coefficient
29/01/2021 23:15:18: getTempCompSetting:: response = B232#
29/01/2021 23:15:18: getTempCompSetting:: Get temp comp direction
29/01/2021 23:15:18: getTempCompSetting:: response = k0#
temperature compensation now ON
temperature cofficient - motor steps per degree = 232
temp compensation direction = 0
This is where things go wrong
29/01/2021 23:16:20: CalculateTemperatuerCoefficient:
You clicked on the Menu Item calculateTemperatureCoefficient
=START=========================================================
29/01/2021 23:16:20: CalculateTemperatuerCoefficient: DIVIDE BY ZERO EXCEPTION
System.DivideByZeroException: Attempted to divide by zero.
at myFocuserPro2.Focuser.calculateTemperatureCoefficientMenuItem_Click(Object sender, EventArgs e)
This is an error::::::::
YOU SHOULD HAVE CLICKED START RECORDING FROM THE MENU
I MAY HAVE TOLD YOU TO CLICK THE WRONG MENU OPTION
START RECORDING IS WHAT YOU SHOULD HAVE CLICKED
The calculateTemperatureCoefficient menu option can only be clicked
when you have readings - so it fails because no readings were taken -
because it is "start recording" that takes the readings first
PLEASE RETRY EXERCISE WITH THE CORRECTED MENU OPTION AND POST THE LOGFILE
Temp Compensation not working
Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/
To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
Something I cant see is the status window saying initial step or temp recorded if that’s any help?
Mike
Sent from Mail for Windows 10
From: Michael O'Brien
Sent: 30 January 2021 13:15
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
Hi Robert
Resending this message as I am not sure the log file attached to the last one.
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: Michael O'Brien
Sent: 30 January 2021 13:00
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
Hi Robert
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 30 January 2021 11:49
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
My Bad
Focuser supports temperature compensation
29/01/2021 23:14:53: Connect: Get status of temperature compensation
29/01/2021 23:14:53: Connect: response = 10#
Temperature compensation is off
29/01/2021 23:14:54: Connect: Get Temperature
29/01/2021 23:14:54: Connect: Send command to focuser
29/01/2021 23:14:54: Connect: response = Z23.0#
Temperature is 23.0
29/01/2021 23:15:18: getTempCompSetting:: Get temp conp status
29/01/2021 23:15:18: getTempCompSetting:: response = 11#
29/01/2021 23:15:18: getTempCompSetting:: Get temperature coefficient
29/01/2021 23:15:18: getTempCompSetting:: response = B232#
29/01/2021 23:15:18: getTempCompSetting:: Get temp comp direction
29/01/2021 23:15:18: getTempCompSetting:: response = k0#
temperature compensation now ON
temperature cofficient - motor steps per degree = 232
temp compensation direction = 0
This is where things go wrong
29/01/2021 23:16:20: CalculateTemperatuerCoefficient:
You clicked on the Menu Item calculateTemperatureCoefficient
=START=========================================================
29/01/2021 23:16:20: CalculateTemperatuerCoefficient: DIVIDE BY ZERO EXCEPTION
System.DivideByZeroException: Attempted to divide by zero.
at myFocuserPro2.Focuser.calculateTemperatureCoefficientMenuItem_Click(Object sender, EventArgs e)
This is an error::::::::
YOU SHOULD HAVE CLICKED START RECORDING FROM THE MENU
I MAY HAVE TOLD YOU TO CLICK THE WRONG MENU OPTION
START RECORDING IS WHAT YOU SHOULD HAVE CLICKED
The calculateTemperatureCoefficient menu option can only be clicked
when you have readings - so it fails because no readings were taken -
because it is "start recording" that takes the readings first
PLEASE RETRY EXERCISE WITH THE CORRECTED MENU OPTION AND POST THE LOGFILE
Temp Compensation not working
Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/
To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
Temp Compensation not working
Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/
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and follow the steps outlined and follow through as far as you can get - (the procedure is outlined in the PDF pg 150 onwards), - during which you should see status messages related to the temperature readings every few seconds -
this code waits for the temperature to drop by 3 degrees, if it does not it will wait forerver
From your posted log it it is very clear that you did not do this. You actually warmed UP the probe because the temperature rises, not falls. There are no shortcuts here. We write the code to behave under certain conditions, and then we document what needs to be followed for the code to work.
So if you change the conditions, you cannot expect the code to work right?
The key important part is above When you see the temperature start to fall,
but in your case, I see is the temperature rising, so no wonder it failed.
I believe that you have been possibly holding the probe in your hand to warm it up. But - again that contradicts the instructions yes?
I mean you could have dunked the probe in Icy water to get it to cool down yes? BUT, that aint a good thing to do because the purpose of the calibration is to be able to determine the correct temperature coefficient value that that temperature compensation is applied correctly to your telescope when you "enable" it. Dunking it in icy water gives a value you would never be able to use in real life.
There really are no shortcuts in Astronomy and sometimes we just gotta read the manual.
Regards
Robert
Last edit: brownrb 2021-01-31
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi Robert I wonder if you might be able to help, I have built the focuser with OLED,Buttons,Temp probe. While I am getting the temp probe readings I don't seem to be able to get the Temp comp working. In the windows app the TC Available tick box is ticked but grayed out. If I do Extra settings/Temp Comp/Get Temp comp it returns Temp Comp on along with the coefficient and direction false which looks fine. However If I try to calibrate it and force a 3+ degree change on the temp probe i don't get any prompt to refocus after the initial prompts. If I turn TC on and change the probe temp there isn't any movement from the stepper motor and the step count display stays the same.
I am using
Windows app 2.4.5.9
Ascom Version 276
Arduino Firmware
// myfocuser DRV8825 OLED
// ONLY FOR USE DRV8825 HW203 OLED ONLY - supports 1.5A at 12VDC and microstepping
// BIPOLAR STEPPER MOTORS ONLY
// SUPPORTS PUSH BUTTONS, BUZZER, LEDS, TEMPERATURE PROBE, BLUETOOTH, ROTARY ENCODER, INRARED CONTROLLER, HOME POSITION SWITCH
The focuser works in all other respects including the OLED display and has been a fantastic asset on to my equipment. Thanks for any help you may be able to provide.
I have attached the Firmware in case I have missed any changes I needed to make I renamed it Mikes focuser so I know which file I have customized for my build.
Thanks again Mike
Forgot to add its on your circuit board design Rev 12
Hi Robert have changed to firmware 304 but still cant set Temp coefficient and the proceedure still doesnt prompt me when 3 degree temp change is achieved.
Last edit: Michael O'Brien 2021-01-25
TC Available tick box is ticked but grayed out?
TC available is a read only box. A user cannot change its state because it is under the control of the controller, not the user. So if temp comp is available by the controller, this box will be ticked - and greyed out. if temp comp is not availble in the controller, then this box willnot be ticked, but will also be greyed out.
still cant set Temp coefficient?
On the Windows app, Temperature tab, have you checked Update on Connect in the Temperature Compensation group?
Start the Windows app.
Enable Log Errors on the Logging tab
Connect to the focus controller
After connection, click on - from Menu Extra Settings, Temperature Compensation, Get temperature Compensation Settings from controller
Wait 5s
Then disconnect ftom the controller
Then send me the error log file.
Last edit: brownrb 2021-01-26
Thanks Robert here is the log as requested
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 26 January 2021 03:23
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Temp Compensation not working
On the Windows app, Temperature tab, have you checked Update on Connect in the Temperature Compensation group?
Start the Windows app.
Enable Log Errors on the Logging tab
Connect to the focus controller
After connection, click on - from Menu Extra Settings, Temperature Compensation, Get temperature Compensation Settings from controller
Wait 5s
Then disconnect ftom the controller
Then send me the error log file.
Temp Compensation not working
Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/
To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
The .png picture I cannot see - it appears blank?
tells me that the controller recognizes the temperature probe nd that temperature compensation is available.
When you did the get tempcomp I see
which shows temp coefficient is set to 118 steps, temp compensation is OFF and the temp compensation direction is False
The next step to enable the focuser to enter temperature compensation mode I cannot see in the log file.
This would be
1. goto temperature tab
2. check TC ON/OFF checkbox
Doing that would send the command to the controller to start "Temperature Compensation" mode
I also cannot see where you might have tried to determine the temp coefficient setting.
So to help me further
1. Connect to the focuser, with logging enabled
2. After connection, goto the temperature tab and check the TC ON/OFF checkbox
3. Use the menu setting - Extra Settings - Temperature Compensation - Get temperature compensation settings from controller
I would expect to see that temp compensation as enabled.
Next:
1. Use the menu setting - Extra Settings - Temperature Compensation - Disable temperature compensation
2. Then, use the menu setting - Extra Settings - temperature Compensation - Calculate temperature Coefficient
and follow the steps outlined and follow through as far as you can get - (the procedure is outlined in the PDF pg 150 onwards), - during which you should see status messages related to the temperature readings every few seconds - this code waits for the temperature to drop by 3 degrees, if it does not it will wait forerver -
So normally this is how you would do this - set up the telescope just before dusk - you only need a connection to the focuser, not the mount. Occassionaly every 30s or so monitor the temperature. You need to position the probe to measure the temperature of the focuser tube, of course for a SCT there is no focuser tube so I used to mount the probe about half way down the telescope tube between the front corrector plate and the rear of the SCT.
When you see the temperature start to fall, As the sun goes away, start the temperature compensation from the menu
Once completed (or as far as you get), then exit the application and post the log file for me to review.
Last edit: brownrb 2021-01-29
Hi Robert still no luck I get to the wait until you are re prompted message but I am never re prompted I can see the temp refresh timer started and the reported temp in the status message box. I then warm/ cool the temp probe and see a temp change of >3 degrees but never get any prompts to continue beyond that point.
Thanks again
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 29 January 2021 04:37
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Temp Compensation not working
The .png picture I cannot see - it appears blank?
28/01/2021 23:18:11: Connect: Get if TempComp Available
28/01/2021 23:18:11: Connect: response = A1#
28/01/2021 23:18:11: Connect: Get status of temperature compensation
28/01/2021 23:18:11: Connect: response = 10#
28/01/2021 23:18:11: Connect: Get TempPrecision
28/01/2021 23:18:11: Connect: response = Q9#
tells me that the controller recognizes the temperature probe nd that temperature compensation is available.
When you did the get tempcomp I see
28/01/2021 23:18:29: getTempCompSetting:: Get temp conp status
28/01/2021 23:18:29: getTempCompSetting:: response = 10#
28/01/2021 23:18:29: getTempCompSetting:: Get temperature coefficient
28/01/2021 23:18:29: getTempCompSetting:: response = B118#
28/01/2021 23:18:29: getTempCompSetting:: Get temp comp direction
28/01/2021 23:18:29: getTempCompSetting:: response = k0#
28/01/2021 23:18:29: getTempCompSetting:: TempCompSettings: Temperature compensation is Off. Coefficient = 118. Dir = False
which shows temp coefficient is set to 119 steps, temp compensation is OFF and the temp compensation direction is False
The next step to enable the focuser to enter temperature compensation mode I cannot see in the log file.
This would be
1. goto temperature tab
2. check TC ON/OFF checkbox
Doing that would send the command to the controller to start "Temperature Compensation" mode
I also cannot see where you might have tried to determine the temp coefficient setting.
So to help me further
1. Connect to the focuser, with logging enabled
2. After connection, goto the temperature tab and check the TC ON/OFF checkbox
3. Use the menu setting - Extra Settings - Temperature Compensation - Get temperature compensation settings from controller
I would expect to see that temp compensation as enabled.
Next:
1. Use the menu setting - Extra Settings - Temperature Compensation - Disable temperature compensation
2. Then, use the menu setting - Extra Settings - temperature Compensation - Calculate temperature Coefficient
and follow the steps outlined and follow through as far as you can get - (the procedure is outlined in the PDF pg 150 onwards), - during which you should see status messages related to the temperature readings every few seconds - this code waits for the temperature to drop by 3 degrees, if it does not it will wait forerver -
So normally this is how you would do this - set up the telescope just before dusk - you only need a connection to the focuser, not the mount. Occassionaly every 30s or so monitor the temperature. You need to position the probe to measure the temperature of the focuser tube, of course for a SCT there is no focuser tube so I used to mount the probe about half way down the telescope tube between the front corrector plate and the rear of the SCT.
When you see the temperature start to fall, As the sun goes away, start the temperature compensation from the menu
Once completed (or as far as you get), then exit the application and post the log file for me to review.
Temp Compensation not working
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My Bad
Focuser supports temperature compensation
29/01/2021 23:14:53: Connect: Get status of temperature compensation
29/01/2021 23:14:53: Connect: response = 10#
Temperature compensation is off
29/01/2021 23:14:54: Connect: Get Temperature
29/01/2021 23:14:54: Connect: Send command to focuser
29/01/2021 23:14:54: Connect: response = Z23.0#
Temperature is 23.0
29/01/2021 23:15:18: getTempCompSetting:: Get temp conp status
29/01/2021 23:15:18: getTempCompSetting:: response = 11#
29/01/2021 23:15:18: getTempCompSetting:: Get temperature coefficient
29/01/2021 23:15:18: getTempCompSetting:: response = B232#
29/01/2021 23:15:18: getTempCompSetting:: Get temp comp direction
29/01/2021 23:15:18: getTempCompSetting:: response = k0#
temperature compensation now ON
temperature cofficient - motor steps per degree = 232
temp compensation direction = 0
This is where things go wrong
29/01/2021 23:16:20: CalculateTemperatuerCoefficient:
You clicked on the Menu Item calculateTemperatureCoefficient
=START=========================================================
29/01/2021 23:16:20: CalculateTemperatuerCoefficient: DIVIDE BY ZERO EXCEPTION
System.DivideByZeroException: Attempted to divide by zero.
at myFocuserPro2.Focuser.calculateTemperatureCoefficientMenuItem_Click(Object sender, EventArgs e)
This is an error::::::::
YOU SHOULD HAVE CLICKED START RECORDING FROM THE MENU
I MAY HAVE TOLD YOU TO CLICK THE WRONG MENU OPTION
START RECORDING IS WHAT YOU SHOULD HAVE CLICKED
The calculateTemperatureCoefficient menu option can only be clicked
when you have readings - so it fails because no readings were taken -
because it is "start recording" that takes the readings first
PLEASE RETRY EXERCISE WITH THE CORRECTED MENU OPTION AND POST THE LOGFILE
Hi Robert
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 30 January 2021 11:49
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
My Bad
Focuser supports temperature compensation
29/01/2021 23:14:53: Connect: Get status of temperature compensation
29/01/2021 23:14:53: Connect: response = 10#
Temperature compensation is off
29/01/2021 23:14:54: Connect: Get Temperature
29/01/2021 23:14:54: Connect: Send command to focuser
29/01/2021 23:14:54: Connect: response = Z23.0#
Temperature is 23.0
29/01/2021 23:15:18: getTempCompSetting:: Get temp conp status
29/01/2021 23:15:18: getTempCompSetting:: response = 11#
29/01/2021 23:15:18: getTempCompSetting:: Get temperature coefficient
29/01/2021 23:15:18: getTempCompSetting:: response = B232#
29/01/2021 23:15:18: getTempCompSetting:: Get temp comp direction
29/01/2021 23:15:18: getTempCompSetting:: response = k0#
temperature compensation now ON
temperature cofficient - motor steps per degree = 232
temp compensation direction = 0
This is where things go wrong
29/01/2021 23:16:20: CalculateTemperatuerCoefficient:
You clicked on the Menu Item calculateTemperatureCoefficient
=START=========================================================
29/01/2021 23:16:20: CalculateTemperatuerCoefficient: DIVIDE BY ZERO EXCEPTION
System.DivideByZeroException: Attempted to divide by zero.
at myFocuserPro2.Focuser.calculateTemperatureCoefficientMenuItem_Click(Object sender, EventArgs e)
This is an error::::::::
YOU SHOULD HAVE CLICKED START RECORDING FROM THE MENU
I MAY HAVE TOLD YOU TO CLICK THE WRONG MENU OPTION
START RECORDING IS WHAT YOU SHOULD HAVE CLICKED
The calculateTemperatureCoefficient menu option can only be clicked
when you have readings - so it fails because no readings were taken -
because it is "start recording" that takes the readings first
PLEASE RETRY EXERCISE WITH THE CORRECTED MENU OPTION AND POST THE LOGFILE
Temp Compensation not working
Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/
To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
Hi Robert
Resending this message as I am not sure the log file attached to the last one.
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: Michael O'Brien
Sent: 30 January 2021 13:00
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
Hi Robert
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 30 January 2021 11:49
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
My Bad
Focuser supports temperature compensation
29/01/2021 23:14:53: Connect: Get status of temperature compensation
29/01/2021 23:14:53: Connect: response = 10#
Temperature compensation is off
29/01/2021 23:14:54: Connect: Get Temperature
29/01/2021 23:14:54: Connect: Send command to focuser
29/01/2021 23:14:54: Connect: response = Z23.0#
Temperature is 23.0
29/01/2021 23:15:18: getTempCompSetting:: Get temp conp status
29/01/2021 23:15:18: getTempCompSetting:: response = 11#
29/01/2021 23:15:18: getTempCompSetting:: Get temperature coefficient
29/01/2021 23:15:18: getTempCompSetting:: response = B232#
29/01/2021 23:15:18: getTempCompSetting:: Get temp comp direction
29/01/2021 23:15:18: getTempCompSetting:: response = k0#
temperature compensation now ON
temperature cofficient - motor steps per degree = 232
temp compensation direction = 0
This is where things go wrong
29/01/2021 23:16:20: CalculateTemperatuerCoefficient:
You clicked on the Menu Item calculateTemperatureCoefficient
=START=========================================================
29/01/2021 23:16:20: CalculateTemperatuerCoefficient: DIVIDE BY ZERO EXCEPTION
System.DivideByZeroException: Attempted to divide by zero.
at myFocuserPro2.Focuser.calculateTemperatureCoefficientMenuItem_Click(Object sender, EventArgs e)
This is an error::::::::
YOU SHOULD HAVE CLICKED START RECORDING FROM THE MENU
I MAY HAVE TOLD YOU TO CLICK THE WRONG MENU OPTION
START RECORDING IS WHAT YOU SHOULD HAVE CLICKED
The calculateTemperatureCoefficient menu option can only be clicked
when you have readings - so it fails because no readings were taken -
because it is "start recording" that takes the readings first
PLEASE RETRY EXERCISE WITH THE CORRECTED MENU OPTION AND POST THE LOGFILE
Temp Compensation not working
Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/
To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
Temp Compensation not working
Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/
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Something I cant see is the status window saying initial step or temp recorded if that’s any help?
Mike
Sent from Mail for Windows 10
From: Michael O'Brien
Sent: 30 January 2021 13:15
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
Hi Robert
Resending this message as I am not sure the log file attached to the last one.
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: Michael O'Brien
Sent: 30 January 2021 13:00
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
Hi Robert
I have definitely been pressing “start recording” and then getting the message " Have you focused the telescope and are ready to begin?” which I respond by pressing “Yes” I then get the message telling me that the application is ready to to save the current focuser position and temperature values as the first reading. To which I press “Yes” I next get a message to say “Please wait till you are prompted to refocus. Do not make any changes. Click OK to continue. I can then see the Temp refresh messages in the Status window but despite temperature changes exceeding 3 degrees don’t get another prompt no matter how long I wait.
I have attached another log file with this sequence followed as detailed.
I appreciate your time and effort helping.
Mike
Sent from Mail for Windows 10
From: brownrb
Sent: 30 January 2021 11:49
To: [arduinoascomfocuserpro2diy:discussion]
Subject: [arduinoascomfocuserpro2diy:discussion] Re: Temp Compensation not working
My Bad
Focuser supports temperature compensation
29/01/2021 23:14:53: Connect: Get status of temperature compensation
29/01/2021 23:14:53: Connect: response = 10#
Temperature compensation is off
29/01/2021 23:14:54: Connect: Get Temperature
29/01/2021 23:14:54: Connect: Send command to focuser
29/01/2021 23:14:54: Connect: response = Z23.0#
Temperature is 23.0
29/01/2021 23:15:18: getTempCompSetting:: Get temp conp status
29/01/2021 23:15:18: getTempCompSetting:: response = 11#
29/01/2021 23:15:18: getTempCompSetting:: Get temperature coefficient
29/01/2021 23:15:18: getTempCompSetting:: response = B232#
29/01/2021 23:15:18: getTempCompSetting:: Get temp comp direction
29/01/2021 23:15:18: getTempCompSetting:: response = k0#
temperature compensation now ON
temperature cofficient - motor steps per degree = 232
temp compensation direction = 0
This is where things go wrong
29/01/2021 23:16:20: CalculateTemperatuerCoefficient:
You clicked on the Menu Item calculateTemperatureCoefficient
=START=========================================================
29/01/2021 23:16:20: CalculateTemperatuerCoefficient: DIVIDE BY ZERO EXCEPTION
System.DivideByZeroException: Attempted to divide by zero.
at myFocuserPro2.Focuser.calculateTemperatureCoefficientMenuItem_Click(Object sender, EventArgs e)
This is an error::::::::
YOU SHOULD HAVE CLICKED START RECORDING FROM THE MENU
I MAY HAVE TOLD YOU TO CLICK THE WRONG MENU OPTION
START RECORDING IS WHAT YOU SHOULD HAVE CLICKED
The calculateTemperatureCoefficient menu option can only be clicked
when you have readings - so it fails because no readings were taken -
because it is "start recording" that takes the readings first
PLEASE RETRY EXERCISE WITH THE CORRECTED MENU OPTION AND POST THE LOGFILE
Temp Compensation not working
Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/
To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
Temp Compensation not working
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Temp Compensation not working
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Last edit: Saahil Sinha 2021-01-30
I believe I said in an earlier email
and follow the steps outlined and follow through as far as you can get - (the procedure is outlined in the PDF pg 150 onwards), - during which you should see status messages related to the temperature readings every few seconds -this code waits for the temperature to drop by 3 degrees, if it does not it will wait forerver
From your posted log it it is very clear that you did not do this. You actually warmed UP the probe because the temperature rises, not falls. There are no shortcuts here. We write the code to behave under certain conditions, and then we document what needs to be followed for the code to work.
So if you change the conditions, you cannot expect the code to work right?
The key important part is above
When you see the temperature start to fall,
but in your case, I see is the temperature rising, so no wonder it failed.
I believe that you have been possibly holding the probe in your hand to warm it up. But - again that contradicts the instructions yes?
I mean you could have dunked the probe in Icy water to get it to cool down yes? BUT, that aint a good thing to do because the purpose of the calibration is to be able to determine the correct temperature coefficient value that that temperature compensation is applied correctly to your telescope when you "enable" it. Dunking it in icy water gives a value you would never be able to use in real life.
There really are no shortcuts in Astronomy and sometimes we just gotta read the manual.
Regards
Robert
Last edit: brownrb 2021-01-31