Tenma 72-7732A Comport / HID

Hello,

I'm trying to write a Python Script that reads the output of Tenma 72-7732A Digital Multimeter, while I am aware of the software that comes with it on the installation disk, I want a Python Script.

When plugging in the Optical to USB lead into the machine, it appears as a "HID Vendor Compliant Device" not as a comport.

I have attempted to read the USB, all I get is B[0,0,0,0,0,0]

I am wondering if anyone has successfully read this device with Python, as a comport or as a HID Device?

Thank you!

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aswinvenu over 1 year ago

https://github.com/swharden/pyTENMA

Maybe this helps.!
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Zacory over 1 year ago in reply to aswinvenu

Like I said in the post, "not as a comport" - the pyTenma software looks for a comport

Thank you though
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Zacory over 1 year ago in reply to aswinvenu

Like I said in the post, "not as a comport" - the pyTenma software looks for a comport

Thank you though
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cstanton over 1 year ago in reply to Zacory

Hey Zacory

Zacory said:
Like I said in the post, "not as a comport" - the pyTenma software looks for a comport

I'm sure aswinvenu was replying with this because:

Zacory said:
I am wondering if anyone has successfully read this device with Python, as a comport

So maybe there's some hint in that code and you can change the way Python interrogates the device.

From my limited expertise I wouldn't expect a HID component to communicate in this way, and I would expect this to be a problem with the driver installed, assuming you're using windows, and it needing a replacement driver?

You can find the windows software/driver here:

Tenma 72-7732 Windows 7 Software

Tenma 72-7732A software win10.zip

I'd confirm that by looking at how the device identifies under Linux, maybe with a liveUSB (I appreciate you don't explicitly state what operating system you're using).
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battlecoder over 1 year ago in reply to cstanton

This could also be the case. Sometimes devices will not show up in windows as comm ports until you install their driver.
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