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    IAQ value not updating (BME688, BSEC2.0)

    MightyNate
    Member

    IAQ value not updating (BME688, BSEC2.0)

    Hello,

    I'm trying to measure the IAQ with a BME688 sensor and the new BSEC2.0 library on an RaspberryPi.

    I had everything working with the BME680 and the BSEC1.4.

    All values despite the IAQ are calculated and updatet correctly but the IAQ status is 0 even after letting it run for over 20 minutes.

    What could be reasons for the IAQ to not update?

    Thanks for any advice

    Nathan

    Tags (3)
    6 REPLIES 6
    MightyNate
    Member

    Re: IAQ value not updating (BME688, BSEC2.0)

    I just let it run for over 1,5 hours and still no change.

    BSTRobin
    Community Moderator

    Re: IAQ value not updating (BME688, BSEC2.0)

    Hello MightyNate,

    Which power mode you configured?

    MightyNate
    Member

    Re: IAQ value not updating (BME688, BSEC2.0)

    I'm running the sensor in Low Power mode.

     

    MightyNate
    Member

    Re: IAQ value not updating (BME688, BSEC2.0)

    I just noticed, that the heat compensated temperature is constantly at around -4 degC which is very unrealistic.

    The raw temeperature is at around 29 degC which matches the weather prediction for my location.

    Might this be a hint  for what is going wrong?

    Besides I'm not using a statefile for the moment and I checked the timestamps, they seem plausible.

    Still the iaq accuracy is always at 0 even after hours of running in Low Power Forced Mode

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