> For the complete documentation index, see [llms.txt](https://cytrence.gitbook.io/cytrence-kiwi-document/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cytrence.gitbook.io/cytrence-kiwi-document/kiwi-pro-plus-features/uart-debug-with-built-in-terminal.md).

# UART Debug with Built-in Terminal

When pins 1 and 3 are set up as UART,  you have the option to connect them either to a virtual serial port or to the built-in UART terminal of the Kiwi device.

The UART pins can be connected to the target computer or any other device equipped with a UART port.

<figure><img src="/files/YW9hmrbGvQScEm6NMW1C" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="warning" %}
The connection configuration will not be activated and persisted until you click the "Apply Settings" button.
{% endhint %}

When the pins are set up as UART connected to the built-in terminal, you can open the terminal by navigating to Advanced -> UART Terminal in the menu.

<figure><img src="/files/WJb6qRHCBHHnKPA0uZwd" alt=""><figcaption></figcaption></figure>