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    BME680 calibration values

    BME680 calibration values

    phil-by-sea
    New Poster

    How to convert ADC data to 'real' values? for example: Temperature ADC value = 492590. Default device params: par_t1 = 0, par_t2 = 26559, par_t3 = 3.
    Using both integer and float API 'calc_temperature()'. 'calc_temp' = 15609. There is no explanation of the equations used by the API.

    Are we expected to apply our own temperature calibration on the output of 'calc_temperature()'?
    Thanks, Phil

    5 REPLIES 5

    BSTRobin
    Community Moderator
    Community Moderator

    Hi phil-by-sea,

    The temperature value conversion is completed in the sensor API. Do you have any problems using it?

    Hi Robin,

    My bad - I didn't spot that the calibration coefficients were not contiguous - so some of my coeffients were garbage!
    The readings are sensible now - thanks

    BSTRobin
    Community Moderator
    Community Moderator

    Hi phil-by-sea,

    Welcome. Feel free to give your feedback when you use Bosch sensortec products.

    ilcnet
    Established Member
    Hello BSTRobin

    Please help me about this problem when I use this code >>>>
    https://paste.ofcode.org/icexEvhNqmqa657kHPgwPa

    The values are going down after sensing voc gases but this is false because after sensing the gases, the values must be go to up for example with the this code in normal the co2 values show 570,630 and etc after sensing co2 the values must be going up for example 1000,2000,4000 and etc but the values going down and fixed in 500, why? Please help me about this issue thanks
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