https://devzone.nordicsemi.com/f/nordic-q-a/76167/sleep-and-wake-up-by-gpioHello, My board is connected to Gyro, Magneto sensor. And board is sleep and wake-up by GPIO. It usually works well. But time to time after wake-up from sleep mode, sensor data read wired. In below picture, from -800 to -400, same value isen-USTelligent Community 13Wed, 09 Jun 2021 12:39:30 GMThttps://devzone.nordicsemi.com/thread/314467?ContentTypeID=1Wed, 09 Jun 2021 12:39:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:60c34df2-fde2-4a25-b420-74994ff69807Jared<p>Hi,</p> [quote user=""]They confirmed that it looks fine and suggest me to check difference between wake-up from sleep and power reset.[/quote] <p><span><a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/power.html?cp=4_2_0_17_6#unique_577666769">The difference between a wakeup from System Off sleep versus a Power-On-Reset is that the GPIO peripheral is reset only in the latter case. </a>The GPIO peripheral is not reset after a wakeup from System Off sleep, it will instead retain its configuration. Which means that it will retain the configuration you set right before you go to sleep when it wakes up.</span></p> <p><span>Hope it helps.</span></p> <p><span>regards</span></p> <p><span>Jared&nbsp;</span></p> <p><span><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/4150.pastedimage1623242367812v1.png" alt=" " /></span></p><div style="clear:both;"></div>