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Thread: lps22hb pressure sensor

  1. #1
    Senior Member
    Join Date
    Aug 2016
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    149

    lps22hb pressure sensor

    Hello,
    these days i tested the pressure sensor lps22hb,the pressure measured is 43 hpa lower than it should,that is it show 970 hpa while it should show 1013 hpa.
    I read in st community that and others have this problem(thread) but some solution was not given.
    Has anyone tried it this sensor?

  2. #2
    Junior Member
    Join Date
    Sep 2013
    Location
    Alps, Switzerland, (middleof)
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    18
    Quote Originally Posted by thanos View Post
    Hello,
    it show 970 hpa while it should show 1013 hpa.
    What height above sea level do you take the measuring? Could it be that you are approx (8x43=424m) above sea level and take QNH as reference?

  3. #3
    Senior Member
    Join Date
    Aug 2016
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    149
    I'm at the 37 meter altitude,i measured with the bmp180 and gives me the correct pressure.

  4. #4
    Junior Member
    Join Date
    Sep 2013
    Location
    Alps, Switzerland, (middleof)
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    Ok, was just a guess. According to datasheet it should be more accurate than BMP. Maybe some error in the used Library?

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