nRF5x System Off demo¶
This sample can be used for basic power measurement and as an example of deep sleep on Nordic platforms. The functional behavior is:
Busy-wait for 2 seconds
Sleep for 2 seconds
Sleep for a duration that would, by policy, cause the system to power off if the deep sleep state was not disabled
Turn the system off after enabling wakeup through a button press
A power monitor will be able to distinguish among these states.
This application uses nRF51 DK or nRF52 DK board for the demo.
Building, Flashing and Running¶
west build -b nrf52_pca10040 samples/boards/nrf52/system_off west flash
Open UART terminal.
Power Cycle Device.
Device will demonstrate two activity levels which can be measured.
Device will demonstrate long sleep at minimal non-off power.
Device will turn itself off using deep sleep state 1. Press Button 1 to wake the device and restart the application as if it had been powered back on.