how to wake up from deep sleep mode using button long press

RE: how to wake up from deep sleep mode using button long press

Kazi Afroza Sultana — Fri, 12 Jul 2024 15:27:09 GMT

Hello,

#define LONG_PRESS_TIMEOUT K_SECONDS(); This defines how long you need to press the button for it to register as a "long press".

You can try to set the value 5. Putting the value 5 means you need to hold down the button for 5s.

Regarding waking up from deep sleep,

The device can be put into System OFF mode using the POWER register interface. When in System OFF mode, the device can be woken up through one of the following signals:

The DETECT signal, optionally generated by the GPIO peripheral
The ANADETECT signal, optionally generated by the LPCOMP module
The SENSE signal, optionally generated by the NFC module to “wake-on-field”
A reset

you can look at this case (+) Deep Sleep Mode and wake Up(standby mode) on Button press and run in normal mode (nRF9160) - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com) and this one for nRF5 SDK (+) Current Consumption in deep sleep mode: when the voltage goes below 1.5V current starts peaking to 300µA. - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com).

RE: how to wake up from deep sleep mode using button long press

srinivasa m — Tue, 09 Jul 2024 12:06:06 GMT

Hi Kazi,

Thanks for your response, my concern is how to wake up the device from deep sleep mode by long press for 5 seconds.

kindly share any logic or any code to wake up from deep sleep mode

regards,

Srinivasa M

RE: how to wake up from deep sleep mode using button long press

Kazi Afroza Sultana — Mon, 08 Jul 2024 15:14:31 GMT

Hello Srinivasa,

You can look at this sample of long press button which shows how to implement long press for buttons.

NCS_examples/peripherals/long_press_button/src/main.c at main · martelmy/NCS_examples · GitHub

Thanks.

kazi