BMP280

Other Hardware Sensors
1

Hi,

I am stuck with a BMP280 sensor from China. I have soldered the pins, connected it via 5V<->3.3V level shifter to A4 and A5 pins on my Arduino UNO but the results are confusing.

Using multiple libraries (Adafruit, Sparkfun), I always get the same constant results

Temperature: 25.92 degrees C
Temperature: 78.66 degrees F
Pressure: 83138.10 Pa
Altitude: 1693.57m
Altitude: 5556.33ft
%RH: 0.00 %

The temperature never changes and the pressure seems wrong (according to the forecast I should get around 1020 hPa.)

I tried connecting the sensor directly to the arduino without the level shifter, but nothing changed.

Can you please help me out?

Thanks a lot!

2

check.. BMP or BME ??

3

Atmospheric pressure as you get it from the local weather services is normally corrected for altitude, while what you're measuring is of course not corrected (yet). So unless you're living at sea level yourself, you have to correct for it, too.