Bosch Sensortec Community

    cancel
    Showing results for 
    Search instead for 
    Did you mean: 
    SOLVED

    bme680 - questions regarding BSEC

    bme680 - questions regarding BSEC

    marcuka
    New Poster

       Hello, community! Working on a project with BME680, will notify user on bad AQI values. Successfully run the example from "bsec_iot_example" folder from BSEC "example" folder, on STM32L0xx. Follow the steps in the BME680 BSEC Integration Guide document. Now I need additional information and advices about BME680 as well as BSEC operation.


       1. Can I rely on real AQI values only during its status accuracy has value of 3? I see that periodically BME680 goes from accuracy level 3 to 2 and than goes back. During this periods, shall I discard the AQI values?

       2. If I don't help the device calibrating by changing the room condition, will it be able to self-calibrate? I try it and it was not able to calibrate for more than 2 days. What can I do for the device to self-calibrate fast without external intervention?

       3. If I understand correctly, the described device configurations in chapter 1.2.2 from the integration guide are loaded during device initialization with bsec_iot_init function, state_load parameter? ... and the data to load is located at BSEC "config" subfolders (uint8_t bsec_config_iaq[454])?

       4. The device will be battery powered (3V initially and down to 2V with the battery discharging). I searched this community and found that only raw temperature must be used in this case, it's OK. I want to read the BME680 outputs at 5 min. period, so is "generic_33v_300s_4d" the right configuration for me?

       5. In the integration guide read that float and integer software versions are available, but in the example only float is used. Where I can find more information about that? Will be good to use temperature values like: t, [Celsius] = (t, [raw] - X) / Y.

       6. If I have new question, shall I post it in this topic or shall I start a new one?

       Thanks in advance,

       Martin Peevski

    5 REPLIES 5

    BSTRobin
    Community Moderator
    Community Moderator

    Since there has been no feedback for a long time, we close this question first. If there is an update in the future, you can still give feedback here.

    Icon--AD-black-48x48Icon--address-consumer-data-black-48x48Icon--appointment-black-48x48Icon--back-left-black-48x48Icon--calendar-black-48x48Icon--center-alignedIcon--Checkbox-checkIcon--clock-black-48x48Icon--close-black-48x48Icon--compare-black-48x48Icon--confirmation-black-48x48Icon--dealer-details-black-48x48Icon--delete-black-48x48Icon--delivery-black-48x48Icon--down-black-48x48Icon--download-black-48x48Ic-OverlayAlertIcon--externallink-black-48x48Icon-Filledforward-right_adjustedIcon--grid-view-black-48x48IC_gd_Check-Circle170821_Icons_Community170823_Bosch_Icons170823_Bosch_Icons170821_Icons_CommunityIC-logout170821_Icons_Community170825_Bosch_Icons170821_Icons_CommunityIC-shopping-cart2170821_Icons_CommunityIC-upIC_UserIcon--imageIcon--info-i-black-48x48Icon--left-alignedIcon--Less-minimize-black-48x48Icon-FilledIcon--List-Check-grennIcon--List-Check-blackIcon--List-Cross-blackIcon--list-view-mobile-black-48x48Icon--list-view-black-48x48Icon--More-Maximize-black-48x48Icon--my-product-black-48x48Icon--newsletter-black-48x48Icon--payment-black-48x48Icon--print-black-48x48Icon--promotion-black-48x48Icon--registration-black-48x48Icon--Reset-black-48x48Icon--right-alignedshare-circle1Icon--share-black-48x48Icon--shopping-bag-black-48x48Icon-shopping-cartIcon--start-play-black-48x48Icon--store-locator-black-48x48Ic-OverlayAlertIcon--summary-black-48x48tumblrIcon-FilledvineIc-OverlayAlertwhishlist