Bosch Sensortec Community

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    Welcome to the Bosch Sensortec Community!

    ChristianH
    Community Manager

    This community offers developers the opportunity to discuss and exchange about the sensing solutions by Bosch Sensortec. This community is created by Bosch Sensortec for its customers, partners or other enthusiasts. Therefore, we welcome everyone with an interest in Bosch Sensortec products to join the community, as long as you observe these community rules:

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    15 Comments
    elev0083
    New Poster

    I'm looking for a MEMs inertial sensor for a medical application that is not sensitive to resonance caused by external acoustic signals.  Here are a few papers explaining the topic of concern.  Unintended sensor resonance could be problematic in my application.  Can you provide any insight or sensor suggestions?

    https://spqr.eecs.umich.edu/walnut/

    https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-tu.pdf

    DK1
    New Poster

    What is the best replacement option for the BMC150 ?

    o_o
    Contributor

    Closest replacement would be BMA423 + BMM150 connected to the auxialiary interface.

    If you prefer a single package, then BMX160 (although it has an extra gyroscope)

    jsvirzi
    New Poster

    I have an application with 4 BMI085, which I chose because of the ability to "externally" synchronize data. Is this synchronization exclusively with gyroscope on same device?

    All 4 BMI085 will operate with identical settings, and therefore output data rates at 1600Hz. My question is 

    1. can I choose 1 gyroscope to provide synchronization to all 4 accelerometers? It is preferable to have 4 accelerometers with perfectly synchronized data, rather than each accelerometer synchronized to its gyroscope

    Thank you,

    -jsv

    sugandha_daal
    New Poster

    Hi All

    I am using BMP280  Breakout board for my project.

    It is connected with RPI and I am using Android things OS.

    Problem Statement; BMP280 Board giving sensor changed: 181.25519 sensor changed: 180.64856, sensor changed: -135.9237, sensor changed: -133 intermittently.

    Temperature sensor is working but intermittently sensor gives -135.9237, 179.63043, -128.93599, 188.4 values continuously for sometime. After some period of time, it starts giving correct temperature automatically. I do not know the reason. I have to solve this issue. I am new in this. Can anyone help me in this?

    gpechoc
    New Poster

    Please tell me how can I post my question ?

    I don't find no help for that.

     

    Best regards

    Gerald

    User_tech
    New Poster

    Hi all,

    what happens to BMP388 sensor when the NVM storing the calibration data gets corrupted?

    Vindski
    Member

    How do I submit my question, in the question and answers part?
    I find a square for typing the question, but nothing happens. And I dont find any button for submitting.

    NipunD
    New Poster

    Can we use BHI260AB for machine learning purposes to run a trained decision tree model ?

    cch
    New Poster

    Hi,

    I'm using a BMI160 shuttle board with SPI and I get conflicts configuring two interrupts, I placed double tap to INT1 and High-G to INT2. The problem is that the last interrupt to set up seems to break the previous one configuration, see attached code.

    int8_t rslt = BMI160_E_COM_FAIL;
    struct bmi160_int_settg int_config;

    // High-G
    // Interrupt channel and type
    int_config.int_channel = BMI160_INT_CHANNEL_1;
    int_config.int_type = BMI160_ACC_HIGH_G_INT;

    // Interrupt channel/pin settings
    int_config.int_pin_settg.output_en = BMI160_ENABLE; // Output Pin
    int_config.int_pin_settg.output_mode = BMI160_DISABLE; // Push-pull mode
    int_config.int_pin_settg.output_type = BMI160_ENABLE; // Active High
    int_config.int_pin_settg.edge_ctrl = BMI160_ENABLE; // Edge triggered output
    int_config.int_pin_settg.input_en = BMI160_DISABLE; // Disable Pin as input
    int_config.int_pin_settg.latch_dur = BMI160_LATCH_DUR_NONE;
    // High-G interrupt parameters
    int_config.int_type_cfg.acc_high_g_int.high_g_x = BMI160_ENABLE;
    int_config.int_type_cfg.acc_high_g_int.high_g_y = BMI160_ENABLE;
    int_config.int_type_cfg.acc_high_g_int.high_g_z = BMI160_ENABLE;
    int_config.int_type_cfg.acc_high_g_int.high_data_src=BMI160_DISABLE;
    int_config.int_type_cfg.acc_high_g_int.high_thres = 5; // 1 g @ (value * 15.63mg for 4 g range)
    int_config.int_type_cfg.acc_high_g_int.high_dur = 2; // 20 ms [(value + 1) * 2.5ms]
    // Set high-G interrupt
    rslt = bmi160_set_int_config(&int_config, &sensor);

    // Double Tap interrupt
    // Interrupt channel and type
    int_config.int_channel = BMI160_INT_CHANNEL_2;
    int_config.int_type = BMI160_ACC_DOUBLE_TAP_INT;

    // Interrupt channel/pin settings
    int_config.int_pin_settg.output_en = BMI160_ENABLE; // Output Pin
    int_config.int_pin_settg.output_mode = BMI160_DISABLE; // Push-pull mode
    int_config.int_pin_settg.output_type = BMI160_ENABLE; // Active High
    int_config.int_pin_settg.edge_ctrl = BMI160_ENABLE; // Edge triggered output
    int_config.int_pin_settg.input_en = BMI160_DISABLE; // Disable Pin as input
    int_config.int_pin_settg.latch_dur = BMI160_LATCH_DUR_NONE;
    // Double Tap interrupt parameters
    int_config.int_type_cfg.acc_tap_int.tap_en = BMI160_ENABLE;
    int_config.int_type_cfg.acc_tap_int.tap_data_src=BMI160_ENABLE;
    int_config.int_type_cfg.acc_tap_int.tap_dur = 3;
    int_config.int_type_cfg.acc_tap_int.tap_quiet = BMI160_ENABLE;
    int_config.int_type_cfg.acc_tap_int.tap_shock = BMI160_ENABLE;
    int_config.int_type_cfg.acc_tap_int.tap_thr = 3;
    // Set double tap interrupt
    rslt = bmi160_set_int_config(&int_config, &sensor);

    Russell-SIBI
    Member

    Yo! 

    I'm using the BME688 and have 2 test devices. We are trying to detect cigarette smoke with the sensor and have been doing testing in a large room with smoking for 5 minutes and then letting the air return to normal. 

    We have the sensors algorithm saying that the smoke from the cigarettes matches anything from apples and oranges to various other things.

    This testing is for commercial use and we have already order 7000 BME688s for testing and would very much like some more support but there seems to be no more infomation on proper testing and various applications or even how to use the AI Suite in a more indepth fashion.

    Is there anyone we can talk to and what about the advanced user settings? 

    BobEChuck
    New Poster

    Hello,  

    How does one post to this forum?  I have questions about the BME688.  Unable to get it working with BSEC.  Kind Regards,

    Robert

    mac65
    New Poster

    Hi, i am using the Adafruit BME280 Breakout Board.

    I have to place the module in a vertical position instead of horizontally, I wanted to know if I can have problems reading the pressure.

    Thanks in advance for any support.

    mahivarma
    New Poster

    How to ask a question

    barrett357
    New Poster

    BME AI-Studio is installed on Windows 10 but the window is so large I cannot select the button on the lower part of the window. How can I reduce the size? I tried my notebook and 19 inch 5x9 monitor.

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