Base current consumption when using nRF Connect SDK v2.0.0 (peripheral uart sample)

[Daewoong Kim]

Hi,

i've developed a few application using nRF5 SDK, and

Now I'm just getting started to study nRF Connect SDK (v2.x.x) by using "peripheral uart" sample.

I thought that "peripheral uart" sample is similar to ble_uart_app example of nRF5 SDK

However, even if i turn off the debug option (e.g. config_console),

the base current of "peripheral uart" sample is about 60 uA... is this right...?

When i developed nRF5 SDK (w/ nRF52840 DK), the base current (idle current) was about 4 uA.

So, i wonder about that,

1) The idle current of nRF Connect SDK is about 60 uA ? (is this affected by Zephyr OS operation??)

2) if not, then... is it possible to make it lower the base current of peripheral uart sample ?

(i just turned off the console or debug option at the <prj.conf> files. Is there any other options to change or setting?)

Thanks,

Daewoong Kim

[Øivind]

Hi,

Could you try enabling CONFIG_PM_DEVICE=y, does that reduce the idle current? If not, please take a look at the documentation for the device power management system:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.1.2/zephyr/services/pm/device.html

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.1.2/zephyr/services/pm/api/index.html#device-pm-apis

[Daewoong Kim]

Thank you for your help.

I'm gonna try to the way you suggest

Have a nice day..!

Daewoong Kim