how to wake up the device by using threshold

[ps_anu]

hi ... i am using nRF52832 ,i want to save the battery so i am planning to use system off mode . how to wake up the device from system off mode using threshold value or either system on mode 

is it possible ? how to do 

Thanks in advance

[Stian Røed Hafskjold]

Ok, so I think you are finished with you code now. It goes to sleep in the idle_state_handle() and wake up using app_timer interrupt.

[Stian Røed Hafskjold]

Using LED pin for what?

[ps_anu]

led pin to wake up the device from system off mode ..as per option 1

[Stian Røed Hafskjold]

Not sure what  "led pin" is, but yes you can wake the chip up from system OFF using a GPIO pin interrupt signal from the temperature sensor.

[ps_anu]

How to do that can you explain me