https://devzone.nordicsemi.com/f/nordic-q-a/52391/nrf52840-zigbee-wake-from-gpio-pin-changeHi~ I am developing door sensor system using nRF52840. Currently for power consumption, sensor (nRF52840) is system off(NRF_POWER-&gt;SYSTEMOFF=1). nRF52840 can wake up from system off. Questions are 1. Can both edges of given gpio can wake upen-USTelligent Community 13Fri, 20 Sep 2019 12:04:33 GMThttps://devzone.nordicsemi.com/thread/210924?ContentTypeID=1Fri, 20 Sep 2019 12:04:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0b32aaeb-c343-42ce-a00e-fe91a72bc6c1Andreas<p>Hi,</p> <p>&nbsp;</p> <p>1) Yes, this is determined by the <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/gpio.html?cp=3_0_0_5_8_1_9#register.PIN_CNF-0-31">SENSE </a>level, which generates the DETECT signal used to wake up.</p> <p>2) No, the wakeup triggers a power-on reset, which <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/power.html?cp=3_0_0_4_2_5_7#concept_res_behav">resets everything</a>.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>