Bosch Sensortec Community

    cancel
    Showing results for 
    Search instead for 
    Did you mean: 

    BME280 Humidity Reading

    klteng
    New Poster

    BME280 Humidity Reading

    I am reading the BME280 humidity and it is always stuck at 100%. The reading for temperature and pressure seems fine.  I have made 5 pcs of PCB with BME280 and all are the same.  Does anyone encounter this issue before?  Any solution?

     

    2 REPLIES 2
    o_o
    Contributor

    Re: BME280 Humidity Reading

    Was the PCB washed after assembly ?

    Because of the hole in the package, washing is not allowed and can damage the sensor.
    shellywang
    Occasional Contributor

    Re: BME280 Humidity Reading

     It seems that the humidity sensor was not turned on. When setting the sensor, please make sure you first set ctrl_hum to turn on the humidity sensor, and then set set ctrl_meas to turn on pressure sensor and temperature sensor.

     In this way, you can see changes to the three sensor data outputs become effective.

    And you could  have a check on github on how to use BME280API:

    https://github.com/BoschSensortec/BME280_driver

    Icon--AD-black-48x48Icon--address-consumer-data-black-48x48Icon--appointment-black-48x48Icon--back-left-black-48x48Icon--calendar-black-48x48Icon--center-alignedIcon--Checkbox-checkIcon--clock-black-48x48Icon--close-black-48x48Icon--compare-black-48x48Icon--confirmation-black-48x48Icon--dealer-details-black-48x48Icon--delete-black-48x48Icon--delivery-black-48x48Icon--down-black-48x48Icon--download-black-48x48Ic-OverlayAlertIcon--externallink-black-48x48Icon-Filledforward-right_adjustedIcon--grid-view-black-48x48IC_gd_Check-Circle170821_Icons_Community170823_Bosch_Icons170823_Bosch_Icons170821_Icons_CommunityIC-logout170821_Icons_Community170825_Bosch_Icons170821_Icons_CommunityIC-shopping-cart2170821_Icons_CommunityIC-upIC_UserIcon--imageIcon--info-i-black-48x48Icon--left-alignedIcon--Less-minimize-black-48x48Icon-FilledIcon--List-Check-grennIcon--List-Check-blackIcon--List-Cross-blackIcon--list-view-mobile-black-48x48Icon--list-view-black-48x48Icon--More-Maximize-black-48x48Icon--my-product-black-48x48Icon--newsletter-black-48x48Icon--payment-black-48x48Icon--print-black-48x48Icon--promotion-black-48x48Icon--registration-black-48x48Icon--Reset-black-48x48Icon--right-alignedshare-circle1Icon--share-black-48x48Icon--shopping-bag-black-48x48Icon-shopping-cartIcon--start-play-black-48x48Icon--store-locator-black-48x48Ic-OverlayAlertIcon--summary-black-48x48tumblrIcon-FilledvineIc-OverlayAlertwhishlist