Hello, I’m using the python script – capture_jls.py file on JS220s – to capture the power profile for x amount of time - for automation. It is working OK and outputs the waveform in .jls format. Whenever I want to connect and capture data from 2 Joules using the same script, it gives me the followin…

I totally forgot about capture_all.py , which shows how to use scan. However, capture_all It still records to JLS v1. For JS220, I now strongly recommend using JLS v2, which is just better, more flexible, and much faster to view & navigate in the UI. A few questions: Do you have any other requir…

Hi @szhaq and welcome to the Joulescope forum! You can use the scan function rather than scan_require_one. You would then need to do whatever you want with the list of returned devices. If you are simply looking to record to jls, you can use the newer pyjoulescope_driver record entry point direct…

Hi @mliberty Thanks for your reply and confirmation. I used the capture_all.jls file and it works fine with both Joulescopes together Answering to your questions below: No other requirements, we want the jls file as well as a cvs file. I can convert the JLS file to CSV easily so no issues there. …

Great! For (2), note that while the Joulescopes will capture at approximately the same rate (specified as ±25 ppm each, ±50 ppm combined worst case total), they will not start capturing at exactly the same time. If you are happy with the existing alignment, great! We will add multiple, simultaneo…

Also see: Sync multiple julescopes

Great thanks! So I do have a followup question: When I was using the capture.py script to get .jls output in a certain directory, after that I was running the following command in the same directory to convert JLS to CVS file and it worked fine: python -m joulescope recording ‘test123.jls’ --exp…

I tried something, but it worked. I am likely not repeating exactly what you did. Here is what I tried: > cd C:\repos\Jetperch\pyjoulescope_examples\bin PS C:\repos\Jetperch\pyjoulescope_examples\bin> python .\capture_all.py --frequency 1000000 Capturing data: type CTRL-C to stop ... I pressed …

Raise RuntimeError("multiple devices found")

Technical Discussion

mliberty September 27, 2023, 8:29pm 6

Also see:

Sync multiple julescopes

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Raise RuntimeError("multiple devices found")

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