Communicating with the board

Unless you programmed a very simple application, you probably want to connect to the board from your computer to display logging information or send input. You can use Universal Asynchronous Receiver/Transmitter (UART) for communicating with the board.

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 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.