> For the complete documentation index, see [llms.txt](https://sdk.twelite.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sdk.twelite.info/en/hw-api-ref/perifuraru/uart/fprintf-raiburari.md).

# fprintf library

- [vfPrintf()](https://sdk.twelite.info/en/hw-api-ref/perifuraru/uart/fprintf-raiburari/vfprintf.md)
- [vPutChar()](https://sdk.twelite.info/en/hw-api-ref/perifuraru/uart/fprintf-raiburari/vputchar.md)
- [tsFILE](https://sdk.twelite.info/en/hw-api-ref/perifuraru/uart/fprintf-raiburari/tsfile.md)