https://devzone.nordicsemi.com/f/nordic-q-a/56352/how-to-configure-nrf52832-dk-with-the-external-rtcCan someone please guide me how I can configure nrf52832 DK with the external RTC for time and calendar keeping. I am using DS3231 external RTC. I don&#39;t want to loose time and calendar count even after reset or power on off. I am a newbie in Nordic. Ien-USTelligent Community 13Thu, 09 Jan 2020 12:39:21 GMThttps://devzone.nordicsemi.com/thread/228346?ContentTypeID=1Thu, 09 Jan 2020 12:39:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a9c331e9-9729-400f-96ac-a2bfc013a75dSimonr<p>Hi</p> <p>This external RTC should be connected to power, and would not be affected by a reset on the nRF52. Please read up on the datasheet of the DS3231M (f<a href="https://datasheets.maximintegrated.com/en/ds/DS3231M.pdf">ound here</a>) in order to see how to keep the date and time during power off. As we have not made this external RTC, we aren&#39;t experts on it I&#39;m afraid, but I assume it is stated in the datasheet.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>