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Visitor II
July 22, 2019
Question

LIS2DW12 interrupt on stop motion

  • July 22, 2019
  • 1 reply
  • 630 views

I'm looking for the best way to send an interrupt on when the LIS2DW12 senses that motion has stopped.

Ideally, the LIS2DW12 will be sleeping until it senses that it is moving...like in a car. The LIS2DW12 will only be moving for about 10 to 500m in and around a certain area. We are only interested in knowing when the LIS2DW12 senses that it has stopped from at least 5 seconds of being driven around.

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    1 reply

    ST Employee
    July 23, 2019

    Hi Rique,

    LIS2DW12 wak-up feature may fit your needs.

    0690X000009YzicQAC.png

    Please refer to AN5038 - LIS2DW12: always-on 3D accelerometer:

    https://www.st.com/resource/en/application_note/dm00401877.pdf

    Thank you.

    Best Regards,

    Winfred