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Pa or hPa? about adafruit_bmp280_library HOT 6 CLOSED

adafruit avatar adafruit commented on August 18, 2024 1
Pa or hPa?

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Comments (6)

ladyada avatar ladyada commented on August 18, 2024 1

readPressure() is Pa, but the Unified sensor example (sensortest) is in hPa

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bleckers avatar bleckers commented on August 18, 2024

Getting values of 101631.3 leads me to believe this library returns Pa, unless we are on Venus or something?

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ladyada avatar ladyada commented on August 18, 2024

yes it returns Pa, if you submit a PR for the doc fix, we'll merge!

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bleckers avatar bleckers commented on August 18, 2024

Done! Thank you :D

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ladyada avatar ladyada commented on August 18, 2024

you have to PR it next

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kevinjwalters avatar kevinjwalters commented on August 18, 2024

This is inconsistent with the specification/guidelines on https://learn.adafruit.com/using-the-adafruit-unified-sensor-driver/how-does-it-work#standardised-si-units-for-sensor-data-2-2 which states hPa (hecto-Pascals). I noticed this on the video for CLUE: https://www.youtube.com/watch?v=Nz38vF2W8BI&t=11s (look closely at values on y axis)

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