WakeUp using Bluetooth Event and Self Wake Up timer(NRF52832)

RE: WakeUp using Bluetooth Event and Self Wake Up timer(NRF52832)

Karl Ylvisaker — Tue, 15 Feb 2022 08:58:19 GMT

[quote user="NileshK"]I was referring SYSTEM_OFF sleep.[/quote]

Thank you for clarifying.

[quote user="NileshK"]I will try SYSTEM_ON mode for waking up using Bluetooth event.[/quote]

Great! If you are using the power management library the device will wake up off itself whenever a Bluetooth event is upcoming (like an upcoming advertising or connection event).
You can read more about the SYSTEM_OFF and SYSTEM_ON sleep modes here.

Best regards,
Karl

RE: WakeUp using Bluetooth Event and Self Wake Up timer(NRF52832)

NileshK — Mon, 14 Feb 2022 14:30:07 GMT

HI Karl,

I was referring SYSTEM_OFF sleep.

I will try SYSTEM_ON mode for waking up using Bluetooth event.

Thank you.

RE: WakeUp using Bluetooth Event and Self Wake Up timer(NRF52832)

Karl Ylvisaker — Tue, 08 Feb 2022 12:26:53 GMT

Hello,

[quote user=""]1) Can we wake up the NRF52832 chip from sleep mode using Bluetooth Event?[/quote]

Are you referring to SYSTEM_ON or SYSTEM_OFF sleep?

In case of SYSTEM_ON, the SoftDevice already does this for you - you can see how this is done in the ble_peripheral examples in the SDK. When the device is idle it enters into SYSTEM_ON sleep, until it is woken by any generated event - such as from a peripheral or the SoftDevice.

In case of SYSTEM_OFF, it is not possible to wake the device from SYSTEM_OFF sleep using Bluetooth events require the SoftDevice to be active, and the Radio to be available, and neither of this is the case when the device is in SYSTEM_OFF sleep. The only way to wake the device from SYSTEM_OFF sleep is through an external interrupt, external to the nRF52832 SoC.

Best regards,
Karl