Issue with negative temperatures on Bresser 7002510 about bresserweathersensorreceiver HOT 8 CLOSED

Yes, this is a known bug inherited with the 6-in-1 decoder from the rtl_433 project. There already seems to be a fix:
merbanan/rtl_433#2184

I did not find the time to catch up with it yet. I fear it will have to wait until after christmas...

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Hi @sgtJohnny , a quick fix is to change in WeatherSensor.cpp line 760:

rain_ok = msg[12] <= 0x99 && msg[13] <= 0x99 && msg[14] <= 0x99;
to
rain_ok = msg[12] <= 0x65 && msg[13] <= 0x99 && msg[14] <= 0x99;

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The maintainers of the rtl433_project are not entirely convinced of this fix, but on the other hand it's better than nothing...

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Hi, yes that is right as we do not know if it works for other version of the Bresser Sensor, but for me and some others that have the same outdoor sensor it is working. There is also a second solution, but than you get a compile error.

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Sorry do not know how I was linked to this post

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That's fine - we are watching your efforts in the rtl_433 project with great interest! ;-)

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I have fixed locally, for me both solutions work
rain_ok = msg[12] <= 0x65 && msg[13] <= 0x99 && msg[14] <= 0x99;
of like in the post on rt433:
rain_ok = (msg[16] & 0x01);

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Still testing, but looks good:
https://github.com/matthias-bs/BresserWeatherSensorReceiver/blob/test-6in1-protocol/src/WeatherSensor.cpp

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