BME280 UNESTABLE MEASUREMENT

Projects General Guidance
1

Hi,

I have a with BME280 sensor. The temperature mesurement is fine, but the presión and the altitude are inestable measurement; when the time is going the sensor increase its measurment, still if it stays in the same place. after a one hour in the same place, the sensor increase your alitude about 20 meters.

Any idea what is going?

Thanks,

Esteban

2

You've got a low pressure weather system moving through your area?

3

The air pressure would vary as the weather changes, thats normal.

The software then estimates altitude based on the air pressure, so as that changes so does the altitude.