Hi,
1-I did some test for nrf51422 (SDK12.3 + soft device S130) power consumption. result as below:
-system on sleep mode( without UART and BLE Advertise ):90uA
-system on sleep mode(with active UART and BLE Advertise ):1.1mA
UART module current consumption is greater than 1 mA. According to the nrf51422 product specification, the max UART consumption is 220uA.
2-I read here https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk51.v9.0.0%2Fhardware_driver_uart.html that there is UART with Low Power mode, is there any example to help us implement the Low Power?