BME280 sensor humidity always 0

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  • I use a BME280 sensor connected to my MDBT42Q . Temperature and pressure measurement is working fine, but humidity is always 0.

    In contrast bme.hum_raw is greater 0, at my place currently 35406. Could there be a problem with the calibration function implementation in bme.js?
    Thanks, Peter

  • It could be there's an issue I guess. Does bme.dH appear to contain nonzero numbers?

    Also, are you certain you have a BME280 sensor, and not a BMP280? I believe they are basically identical apart from the lack of humidity in the P

  • bme.dH is [ undefined, 0, 0, 0, 0, 0, 0 ].

    As you are asking: In fact I´m not 100% sure, that I have a BME280. The breakout board has both labels: BMP280 and BME280. But you may be right, that in fact it´s only a BMP280.

    Thanks for the hint!

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BME280 sensor humidity always 0

Posted by Avatar for Peter_Bernscheider @Peter_Bernscheider