BME280 large offset
Posted: 19 Dec 2023, 11:40
I was running an old version of espeasy, from somewhere around 2021, on an ESP32.
A BME280 was connected to it and had an offset of about 1 degree celcius. No problem.
Now I created a new set: new ESP32, new BME280 and the latest version of espeasy.
Now the reading is almost 5 degrees too high, and also more "spiky".
So to be sure it isn't a faulty BME280, I took the old BME280, connected it to the new ESP32/espeasy but this one now also shows over 4 degrees too high.
So that kinda proofs that something has changed in the software?
In both setups, old and new, the position of the BME280 is at about the same (same wall, same height, simmilar casing with simmilar openings).
Based on small changes in placement, I would accept perhaps a few tenths difference, not over 3 degrees more "wrong".
A BME280 was connected to it and had an offset of about 1 degree celcius. No problem.
Now I created a new set: new ESP32, new BME280 and the latest version of espeasy.
Now the reading is almost 5 degrees too high, and also more "spiky".
So to be sure it isn't a faulty BME280, I took the old BME280, connected it to the new ESP32/espeasy but this one now also shows over 4 degrees too high.
So that kinda proofs that something has changed in the software?
In both setups, old and new, the position of the BME280 is at about the same (same wall, same height, simmilar casing with simmilar openings).
Based on small changes in placement, I would accept perhaps a few tenths difference, not over 3 degrees more "wrong".