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    IAQ from BME688 on NRF9160 ZephyrRTOS

    DDVi
    Member

    IAQ from BME688 on NRF9160 ZephyrRTOS

    Hi, Zephyr already has support for BME680. We are interested in IAQ from BME688 on NRF9160 ZephyrRTOS, and have been using this:

    https://github.com/zephyrproject-rtos/zephyr/blob/main/drivers/sensor/bme680/bme680.c#L383

    But the values saturate at 250. Shouldn't it go up to 500? It would go up to 250 in rather benign situations and flatten there. I have tried putting it close to Alcohol, surrounding it with ethanol but can only get a flat line at 250. 

    Many thanks for any hints?

    3 REPLIES 3
    BSTRobin
    Community Moderator

    Re: IAQ from BME688 on NRF9160 ZephyrRTOS

    Hello DDVi,

    What is the current accuracy value? And how long did you test it?

    DDVi
    Member

    Re: IAQ from BME688 on NRF9160 ZephyrRTOS

    The accuracy says 0. They have been running for over a month, both indoors and outdoors. 

    BSTRobin
    Community Moderator

    Re: IAQ from BME688 on NRF9160 ZephyrRTOS

    Hello DDVi,

    There was BSEC example code in another topic, you could refer here: https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/NRF52840-with-BME680/m-p/49693/highlight...

    IAQ accuracy.png

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