unable to run calibration python file

[mksbabu]

Hi Team,
I am unable to run below python file related to calibration which is in realsense code and getting below error for on-chip calibration method, faced camera towards flat white wall & flat surface. Could you please help me on it since I want to use same code in my application.

Python file: https://github.com/IntelRealSense/librealsense/blob/master/wrappers/python/examples/depth_auto_calibration_example.py
Error:

Stack trace:

File "C:\Users\spand\demo\pythoncalibration\pythoncalibration.py", line 121, in run_on_chip_calibration
table, health = adev.run_on_chip_calibration(args, progress_callback, 30000)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\spand\demo\pythoncalibration\pythoncalibration.py", line 87, in main
run_on_chip_calibration(args.onchip_speed, args.onchip_scan)
File "C:\Users\spand\demo\pythoncalibration\pythoncalibration.py", line 285, in (Current frame)
main()
RuntimeError: hwmon command 0x80( 8 2 0 8 ) failed (response -7= HW not ready)

Thanks,
Spandana.

[MartyG-RealSense]

Hi @mksbabu Which firmware driver version are you using in your camera, please? It is important to be using the appropriate firmware for each SDK version.

SDK 2.54.2: firmware 5.15.1.0
SDK 2.54.1: firmware 5.15.0.2
SDK 2.53.1: firmware 5.14.0.0
SDK 2.50.0 and 2.51.1: firmware 5.13.0.50

[mksbabu]

@MartyG-RealSense I have tried with pyrealsense2 2.54.1.5217 and firmware version as 5.15.0.2 but I got health value only for 2 times when I ran it several times and still getting same error frequently.

To try this with pyrealsense2 2.54.2.5684 and firmware as 5.15.1.0 but didn't find bin file here (https://dev.intelrealsense.com/docs/firmware-releases) to update firmware from 5.15.0.2 to 5.15.1.0.

could you please try to run this python file from your side and help me on it

Regards
Spandana.

[MartyG-RealSense]

I am not able to test code on my computer, unfortunately.

For some RealSense users, the On-Chip calibration tool only works correctly up until version 2.49.0 and not in versions 2.50.0 and newer (which only give the hwmon RuntimeError that you experienced). If you are one of the affected users then there is nothing that can be done except to try a different computer if you have one available.

---

An alternative way to adjust the calibration of the camera is to reset the calibration to its factory-new default state in the RealSense Viewer tool using instructions at #10182 (comment)

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There is also another calibration tool called Dynamic Calibration that can be used instead of On-Chip, though it cannot be controlled from Python scripting. It can be downloaded for Windows from the link below:

https://www.intel.com/content/www/us/en/download/645988/intel-realsense-d400-series-dynamic-calibration-tool.html

Because the Windows version is a pre-built executable program, it simply needs to be run and does not require the installation of any other programs or the compilation of code. As the calibration is stored in the camera hardware and not on a computer, you could calibrate on a Windows computer and then take the calibrated camera back to another PC such as a Linux computer.

If you need to use a Linux PC then the Dynamic Calibration tool can installed on Linux using instructions on page 14 onwards of the tool's user guide.

https://www.intel.com/content/www/us/en/support/articles/000026723/emerging-technologies/intel-realsense-technology.html

[mksbabu]

Thank you @MartyG-RealSense .I will look into it.
Is pyrealsense2 available in Python 3.12.0?

[MartyG-RealSense]

The pyrealsense2 wrapper can be compiled from source code for modern Python versions such as 3.12.

For package installation with the pip install pyrealsense2 command, Python 3.11 is currently the newest supported version at the time of writing this.