question about the power consumption of nRF52832 in BT connected and advertising mode

[PYC]

the power consumption is about 6.12mW in BT connected, and consumption is about 7.75mW in advertising mode.

is it normal or has possibility to reduce it to extend the battery life?

thanks in advance.

[awneil]

It will depend very much on your settings - connection interval, advertising interval, etc ...

you can explore it with the online Power Profiler:

https://devzone.nordicsemi.com/nordic/power/w/opp

[PYC]

https://devzone.nordicsemi.com/nordic/power/w/opp/2/online-power-profiler-for-ble

excuse me, here is result by our setting, may you review it to see there is any setitng could improve the power consumption?

Thanks.

[PYC]

opp-params-ble.zip

[Stian Røed Hafskjold]

The file just contains the same default parameters as when you refresh the page. With these settings you can expect an average current consumption of 89 uA in advertising mode. This is very far from the 7.76mW (= 2.6 mA, assuming 3V input) reported consumption. So yes, there should be plenty of room for improvement here to extend the battery life.

[PYC]

yes, the supply voltage is 3V, may i have your suggestion to extend the battery life more?

Thanks in advance.

[PYC]

excuse me, may i have your suggestion to modify the parameter to extend the battery life? Thanks.

[Stian Røed Hafskjold]

Sorry, I don't know anything about your application, so it's hard for me to give any suggestions. You can start out with the ble_app_pwr_profiling example in the SDK, it should compare well with the online power profiler. Use that to verify your measurement setup, custom HW, etc. Then add stuff one by one to figure out where it goes wrong.