https://devzone.nordicsemi.com/f/nordic-q-a/77438/sample-to-powersave-and-wakeup-periodiclyHi Im new on nRF9160 and Zephyr. Is there a sample to powersave to lowes current and wakeup every hour very fast?en-USTelligent Community 13Wed, 14 Jul 2021 21:28:58 GMThttps://devzone.nordicsemi.com/thread/320114?ContentTypeID=1Wed, 14 Jul 2021 21:28:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3d1c4d2b-2cdc-4ea3-8e61-fb1be0084efcStian R&#248;ed Hafskjold<p>Hi, basically all examples use this kind of power save &quot;feature&quot;. You can use a timer to set up a periodic task: <a href="http://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/reference/kernel/timing/timers.html">http://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/reference/kernel/timing/timers.html#</a></p> <p>Zephyr will handle the wakeup and other threads, and put the CPU to sleep when there are no ongoing tasks.</p> <p>You can check out the blinky example to get started: <a href="http://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/samples/basic/blinky/README.html">http://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/samples/basic/blinky/README.html</a></p> <p><a href="https://github.com/nrfconnect/sdk-zephyr/blob/master/samples/basic/blinky/src/main.c">https://github.com/nrfconnect/sdk-zephyr/blob/master/samples/basic/blinky/src/main.c</a> </p> <p>It uses a k_sleep function in the main loop to toggle the LEDs, which is another way of setting up periodic tasks.</p><div style="clear:both;"></div>