https://devzone.nordicsemi.com/f/nordic-q-a/10617/how-to-wake-up-nrf51-from-sleep-mode-by-a-motion-eventHi, on aliexpress you can buy a nRF 51 board with a LIS3DH digital output motion sensor: de.aliexpress.com/.../32325205949.html Is there any example or source available, how to wake up the nRF 51 from sleep mode triggered by a motion event? en-USTelligent Community 13Fri, 04 Dec 2015 15:24:35 GMThttps://devzone.nordicsemi.com/thread/39590?ContentTypeID=1Fri, 04 Dec 2015 15:24:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:10f9840c-89b8-459d-a9f3-dc4df197e4cfovrebekk<p>Hi</p> <p>If you just need to wake up on a pin change you can use the GPIOTE driver in the SDK, as documented <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk51.v10.0.0/hardware_driver_gpiote.html?cp=4_1_0_2_2">here</a>.</p> <p>Any example configuring buttons for wakeup should also be relevant, such as this one: <a href="https://github.com/NordicSemiconductor/nrf51-powerdown-examples/tree/master/system-on-wakeup-on-rtc">Button example</a></p> <p>Best regards<br /> Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/39591?ContentTypeID=1Thu, 03 Dec 2015 12:55:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e79d3567-cad1-40f4-9069-db8a45b64817awneil<p>For any 3rd-party product, you should ask that 3rd party for specific support with <strong><em>their</em></strong> product.</p> <p>As far as the nRF51 is concerned, its wakeup behaviour &amp; capabilities are defined in its <strong>datasheet</strong> - so you will have to study that, and think how you can apply that with the facilities available on that board.</p> <p>The LIS3DH is an <strong>ST</strong> product - you will have to study its <strong>datasheet</strong> for details of its functions &amp; performance...</p> <p><a href="http://www.st.com/web/catalog/sense_power/FM89/SC444/PF250725?icmp=pf250725_pron_pr_feb2014">www.st.com/.../PF250725</a></p><div style="clear:both;"></div>