If your application outputs logging information or needs console input, you should
connect the kit to your computer to interact with a console. You can use Universal Asynchronous Receiver/Transmitter (UART) for
communicating with the kit.
Connecting via
UART is quick and power-efficient, but it requires dedicated use of the
UART peripheral for logging. Alternatively, you can use an
external
UART to
Universal Serial Bus (USB) bridge. We use
the term CDC-UART to refer to
UART communication through the
UART to
USB CDC ACM bridge, to
distinguish it from communication through the Nordic UART Service (NUS) over
Bluetooth®
Low Energy.