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    IAQ value not updating (BME688, BSEC2.0)

    IAQ value not updating (BME688, BSEC2.0)

    MightyNate
    Member

    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

    9 REPLIES 9

    MightyNate
    Member

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

    BSTRobin
    Community Moderator
    Community Moderator

    Hello MightyNate,

    Which power mode you configured?

    I'm running the sensor in Low Power mode.

     

    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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