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    BME688 AI Application fails

    bsec
    New Poster

    BME688 AI Application fails

    HI,

    I created 2 AI models, one for coffee similar to the youtube video and one for foul vegetables. Both algorithms produce probabilities > 95%. I checked the configuration file output from AI Studio with 3 different applications: Arduino ESP32 (exact the ino example in BSEC 2.0), ESP32 in eclipse development environment and on a STM32 nucleo platform, all linked with libalgobsec.a (depending of the MCU used). In every test I get the result Gas Estimate 1 (normal air -> 1.0). Whatever I do I never get any probability > 0.0 in Gas Estimate 2, even if probe within the Coffee glas or in the fouled vegetable container. Any experience with BME688?

    For sampling I used BME 688 dev kit board (8 sensors) on Adafruit HUZZAH32

    BR

    8 REPLIES 8
    BSTRobin
    Community Moderator

    Re: BME688 AI Application fails

    Hello bsec,

    Recommend you to put the trained config string into SD card of same EKB board(which is used to collect the data) and have a test on the target gas. Could have a try and give feedback?

    bsec
    New Poster

    Re: BME688 AI Application fails

    Hi,

    thanks for reply. I got a .config file from the AI. What happens, if I put it back to the SD Card? Does the ESP32 generate a log file instead of sampling new data? Any documentation for the steps you suggest?

    BR

    Bernd

    BSTRobin
    Community Moderator

    Re: BME688 AI Application fails

    Hello bsec,

    After you got config file, you could import it to BSEC example and run it. You could download BSEC package from here:

    https://www.bosch-sensortec.com/software-tools/software/bme688-software/

    There are deriver code, example code, integration guide under BSEC package. You could refer integration guide to do step by step operation.

    bsec
    New Poster

    Re: BME688 AI Application fails

    Hi,

    this ist exact the software I use and I have problems with! Whatever I measure coffee, foul vegetables, every time class normal air is returned 

     

    BR

    Bernd

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