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    bme68x_set_heatr_conf() function issue

    bme68x_set_heatr_conf() function issue

    steven_bsec
    Member

    Hi,

    I use STM32 to read bme688 IAQ.I write software as below example.

    If I call the bme68x_set_heatr_conf() function, the IAQ is always 25 and the humidity is always 100%, but the temperature and air pressure are normal. If I don't call this function, both IAQ and humidity are normal. what is the reason?

    If the function bme68x_set_heatr_conf() is not called, will the result be inaccurate?

    steven_bsec_0-1650788679375.png

    steven_bsec_1-1650788791682.png

     

     

    5 REPLIES 5

    BSTRobin
    Community Moderator
    Community Moderator

    Hi steven_bsec,

    The original code works. Have you modified anything in "BSEC_2.0.6.1_Generic_Release_04302021" package?

    I no modified BSEC_2.0.6.1_Generic_Release_04302021 package.The file I use is as below.

    I want to confirm two questions:
    1. What are the possible reasons? Can't the sensor reach heatr_temp?
    2.What is the effect of not calling the bme68x_set_heatr_conf() function

    steven_bsec_1-1650794376932.pngsteven_bsec_0-1650793812817.png

     

    It mean that the bme688 needs to be heated to 320 degrees Celsius?

    steven_bsec_2-1650794750811.png

     

    BSTRobin
    Community Moderator
    Community Moderator

    Hi steven_bsec,

    Example code used this function to configure sensor with parameters. This function is needed.

    but when i call bme68x_set_heatr_conf  ,the AQI  does not change and humidity is too high .

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