WMR200/A Issue (hopefully) resolved...

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John E.P. Hynes

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Jun 26, 2026, 1:37:00 PM (5 days ago) Jun 26
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In case anyone ever needs it, I'm pretty sure I've corrected that annoying and many-years-old problem with the Oregon Scientific WMR200 driver. It seemed like the device itself had a firmware issue where it would rarely and unpredictably stall. The previous driver didn't handle this at all and just exited...

I added a short handler to catch when such a stall occurs, and retry up to three times, resetting the port before each attempt. So far, it's working here - having caught one such stall after about a week, resetting, and on the first attempt, recovering normally.

Anyway, if it's still of use to anyone, it's here: https://github.com/HyTronix/weewx-wmr200a-hytronix.git

If I notice any other issues that pop up or that I can fix, I'll keep that repo updated.

-John

Tom Keffer

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Jun 26, 2026, 1:39:28 PM (5 days ago) Jun 26
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Could you submit a Pull Request so we can merge your changes into the version at the WeeWX repository?

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John E.P. Hynes

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Jun 26, 2026, 1:41:18 PM (5 days ago) Jun 26
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Sure - done.
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