RE: nRF9160 lowest power with RTC running

Canastra — Thu, 09 Sep 2021 08:39:51 GMT

Hi Kenneth

Now I've an working sample to wakeup from pin and rtc.

the current consumption on the dk is 2-3uA.

So every thing is OK

Thanks.

BTW.

It would be helpful if there is a sample in nRF connect SDK for this situation.

RE: nRF9160 lowest power with RTC running

Kenneth — Tue, 24 Aug 2021 12:48:12 GMT

[quote user=""]

Wake up from RTC does not work.

When I run __WFI();

Current is not ok 10-12uA

[/quote]

If you make a very simple main() that only use k_sleep(), then that uses the RTC in the background, so this should be power optimized. What current consumption do you measure then?

I would think that the current consumption problem with "10-12uA" is that you have not configured wakeup on pin correct, you should configure to use "sense" wakeup from lowest power consumption, I suspect you have configured "in event" for wakeup from sleep. Using "in event" will have higher current consumption:
https://infocenter.nordicsemi.com/topic/ps_nrf9160/gpiote.html