Wake up from sd_power_system_off() automatically

[GK]

Dear all,

I am using nrf52832

SDK15 and soft device s132.

Is there a way to wake up the device from sytem_off mode(deep sleep mode) automatically?

Can I do it without giving any signal to GPIO pins from external world?

If I want to wake up the device (from deep sleep mode) periodically, Is there a way?

Thanking you in advance.

with regards,

Geetha

[Einar Thorsrud]

Hi Geetha,

No, it is not possible. There are no clocks running in system off mode, hence no concept of time. If you want to wake up regularly you need to use system ON low power mode, and this is what is typically used in most products. The current consumption in system ON low power mode is also negligible, typically about 2 μA, including the 32 kHz clock and an RTC instance.

Einar