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    BMA280 no-motion & LPM1

    BMA280 no-motion & LPM1

    ibefra
    New Poster

    I want to minimize current consumption by switching from NORMAL to Low Power Mode 1 and to detect no-motion simultaneously.

    That works. But when I'm trying to move BMA280 continually, no-motion interrupt is fired despite the fact that motion does persist. Tested with sleep_dur 0.5ms, 500ms, 1s. In NORMAL mode I see no interrupts by moving the device, and I do see no-motion interrupt when BMA280 is motionless.

     

    Is that expected behaviour? Can I use no-motion & LPM1 together or not?

    15 REPLIES 15

    FAE_CA1
    Community Moderator
    Community Moderator

    Right. If there are no changes in acceleration (theoretically constant velocity) for 300s, software timer will reach 300 and system will detect rest state. Neither ANY_, nor NO_ motion solves that case.

    Thanks.

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