BT advertising current on the 54L15 DK

[dave]

Hi,

I am using the nrf54L15DK to take some current measurements.  

I am using the PPk2, connected to P6 on the DK, supplying 3V, and have the USB on the DK connected.

With a basic project where main just does a k_sleep, and in muy prj.conf I have CONFIG_SERIAL=n, I am able to get down to about 2.7uA, which is great.

I want to look at the current during bt advertising current.  When I enable BT with `CONFIG_BT=y` the idle current jumps to about 270uA (no changes in main).  I have tried initializing BT with `bt_enable(NULL)` and started advertising, but the idle current between advertising periods is still in the 270uA range.

My understanding is that I should be able to get this much lower (10's of uA).  What config settings do I need to change, or runtime code do I need to add to get the current draw lower?

Thanks

[khelmutlord]

Hey Dave, check out this sample we've made for peripheral power profiling: github.com/.../peripheral_power_profiling

[dave]

khelmutlord 
  I was able to figure out our issue.  We were building in ns.  The sample app build has an error when building in ns, building without ns gets the low current.  Switching that in our app we are down to about 10uA average with a 1 second advertising window.

Are we able to get that kind of current level when building with ns and have BT enabled? Or with BT do we have to not use ns?