How to put nRF52840 DK in deep sleep?

[Haifan]

I just bought the nRF52840 DK.  How do I put it in deep sleep mode?

[ps_anu]

hi ... you can use sd_app_evt_wait() ,it will be in  sleep mode  until you are waking up by using external or internal interrupt . you can see this link  https://devzone.nordicsemi.com/f/nordic-q-a/24398/sleep-wakeup-tutorial

[Haifan]

What's the power consumption in this mode?

Thanks.