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Thread: lps22hb pressure sensor

  1. 08-09-2018, 02:51 PM #1
    thanos
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    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?
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  2. 08-09-2018, 06:55 PM #2
    sigi
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    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?
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  3. 08-09-2018, 07:45 PM #3
    thanos
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    I'm at the 37 meter altitude,i measured with the bmp180 and gives me the correct pressure.
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  4. 08-09-2018, 08:11 PM #4
    sigi
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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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