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h2zero / NimBLE-Arduino

A fork of the NimBLE library structured for compilation with Arduino, for use with ESP32, nRF5x.
https://h2zero.github.io/NimBLE-Arduino/
Apache License 2.0
670 stars 138 forks source link

Low Sleep Mode #586

Closed j45p41 closed 1 month ago

j45p41 commented 9 months ago

Hi,

I am trying to use put NRF52840 to sleep.

I have tried Arduino_nRF5x_lowPower library but it seems to not work with thislinrary showing the following error:

.pio/libdeps/nrf52840_dk_adafruit/Arduino nRF5x lowPower/src/Arduino_nRF5x_lowPower.h:25:10: fatal error: nrf_sdm.h

I simply want to put the device to sleep and wake up on interrupt, while using ADXL362 and interrupt source.

Otherwise great library that I want to keep on using.

Thanks!

h2zero commented 9 months ago

This is not a function of this library, more of a core function. That said, you can follow the Nordic examples and use NRF_POWER->SYSTEMOFF = 1; to enter system off sleep mode after enabling a GPIO wakeup.

h2zero commented 7 months ago

Just to add to my response above, the Arduino_nRF5x_lowPower library is only for use with the softdevice, not NimBLE. n-able core has the systemPowerOff() function that should work for this purpose.