How to use PM suspend mode in Zephyr and which one?

[SM_]

Hi,

I am working on the nRF52840DK using Zephyr NCS v2.1.2 on Windows.

I am using the Zephyr CAF example. in which I have added my own sensors and it is working fine.

Now I want to put the application into Suspend mode (i.e. System ON mode), and wakeup it is using the Timer, so it will consume less current. 

So which PM function is used for Suspend mode and how to use it?

Is there any sample example for this please suggest.

Any help is greatly appreciated! 

Thanks.

[Edvin]

Hello,

The way that you can see that all of our samples just uses a sleep function in the main loop is sufficient for the chip to go to sleep.

As for the timer, you just set up the timer before you go to sleep. You can, for example, use an implementation looking something like this:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/kernel/services/timing/timers.html#using-a-timer-expiry-function

Best regards,

Edvin