My sensor does indicates an altitude of 189m whereas the reference weather station (next to house) is known to be at 120m height! What's wrong with the sensor?
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My sensor does indicates an altitude of 189m whereas the reference weather station (next to house) is known to be at 120m height (at the top of the tower)! What's wrong with the sensor?
The altitude is deduced from the difference of local pressure and pressure at the sea level.
The altitude is deduced from the difference of local pressure and pressure at the sea level.
Ligne 171 :
Ligne 171 :
Once the baseline value corrected, you will have the correct altitude:
Once the baseline value corrected, you will have the correct altitude:
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bmp180.baseline = 100200 # Pression du jour au niveau de la mer (multiplier par 100)
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bme.readAltitude(1002.00)
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mon senseur retourne une altitude de 104m, nettement plus convenable.
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The sensor would return the right altitude (104m) for the sensor which is quite good since we are not in the tower (like the reference weather station).
=== La pression atmosphérique semble incorrecte! ===
=== La pression atmosphérique semble incorrecte! ===