NUS based current consumption is different

[J.D.]

Hello.

I read this article

https://devzone.nordicsemi.com/f/nordic-q-a/66914/uart-current-consumption

I did my testing with ble_app_uart from SDK 17.0.2 on a nRF52832, and my power source is 2.5V.

I think same condition but not same result.

I don't know why my result power consumption more.

What am I miss something?

[Kenneth]

Typically idle current consumption of the NUS example is about ~1mA due to it's in UART RX mode waiting for data, I notice in your case you have much lower current (~20uA), so that lead me to believe you have stopped RX here or have you also disabled UART? I would think you need to disable the UART in addtion if you want the lowest power (~2uA). Please refer to:
https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/uarte.html#concept_twi_low_power 

Kenneth