> For the complete documentation index, see [llms.txt](https://bananapi.gitbook.io/bpi-open-debugger-burn-board/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bananapi.gitbook.io/bpi-open-debugger-burn-board/zh/uartinterface.md).

# UART Interface：

STC series microcontroller programming and debugging output port for printing information.