Reduce power consumption while advertising

[TheRaven]

Hello,

I'm using the "experimental_ble_app_blinky" on the nRF52 DK, and I would like to reduce the power consumption during the advertising.

Indeed, during the advertising, I measured 0.445mA, and I think it is very high ! (Maybe I'm wrong : is this a normal value ?).

I disabled all the blinking LEDs on the example, and I followed the documentation in order to make the measurements (and when I don't use BLE and I just use sd_app_evt_wait(); I have a consumption of abou 1µA).

What can I do in order to reduce the power consumption during the advertising please ? (I would like to have the advertising mode always set when the board isn't connected o a BLE device : that's why I would like to reduce the consumption at the maximum).

Also, when the device is connected, the consumption is about 0.116mA : is it high ? Or correct ?

[Sigurd]

If you want to reduce the power consumption you could e.g. increase the advertising interval. 445 uA is a normal value if you use a 20 ms advertising interval. You can estimate the current consumption using our Power Profiler calculator here.

[TheRaven]

Thanks a lot, it worked ! By setting the advertising interval to 1000ms, the value of the consumption measurement decrease to 12µA, which is perfect !