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Automation, sensing and robotics • Re: Getting Data From a Xiaomi Mijia LYWSD03MMC Temperature Humidity sensor

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I'm done here.

This has been a frustrating and time consuming nightmare with no obvious benefit.

This morning I'm out for coffee and check the web page to make sure the old sensor is still providing data. It is not:

The last time it was successful was at 6:04 AM this morning.

Here's a recent log entry and an attempt at gatttool

Code:

pi@raspsky:~/webcam $ cat sensor.log==========Mon Dec  1 11:04:00 +07 2025 Reading Weather Sensor DataMon Dec  1 11:04:45 +07 2025 No Sensor Data==========pi@raspsky:~/webcam $ gatttool -b A4:C1:38:C5:33:3A --char-write-req --handle='0x0038' --value="0100" --listen | grep "Notification handle" -m 1connect error: Connection refused (111)
Could be battery. Who knows.

In any event since I can no longer connect with the new sensor and the old sensor is MIA, there's nothing more to do.

Statistics: Posted by Ratsima — Mon Dec 01, 2025 4:35 am



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