> For the complete documentation index, see [llms.txt](https://tk233.gitbook.io/notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tk233.gitbook.io/notes/stm32/connectivity.md).

# Connectivity

- [UART](https://tk233.gitbook.io/notes/stm32/connectivity/uart.md)
- [USART](https://tk233.gitbook.io/notes/stm32/connectivity/usart.md)
- [USART - CAN Dongle (Fixed Size Serializer with Robust Timeout Handling)](https://tk233.gitbook.io/notes/stm32/connectivity/usart/usart-can-dongle-fixed-size-serializer-with-robust-timeout-handling.md)
- [CAN](https://tk233.gitbook.io/notes/stm32/connectivity/can.md)
- [FDCAN](https://tk233.gitbook.io/notes/stm32/connectivity/fdcan.md)
- [I2C](https://tk233.gitbook.io/notes/stm32/connectivity/i2c.md)
- [SPI](https://tk233.gitbook.io/notes/stm32/connectivity/spi.md)
- [SPI - GC9A01A LCD Screen](https://tk233.gitbook.io/notes/stm32/connectivity/spi/spi.md)
- [SPI - RFID](https://tk233.gitbook.io/notes/stm32/connectivity/spi/spi-1.md)
- [SPI - SD Card](https://tk233.gitbook.io/notes/stm32/connectivity/spi/spi-sd-card.md)
- [Ethernet](https://tk233.gitbook.io/notes/stm32/connectivity/ethernet.md)
- [Ethernet - LWIP](https://tk233.gitbook.io/notes/stm32/connectivity/ethernet/ethernet.md)
- [Ethernet - UDP](https://tk233.gitbook.io/notes/stm32/connectivity/ethernet/ethernet-udp.md)
- [Ethernet - UDP Multicast](https://tk233.gitbook.io/notes/stm32/connectivity/ethernet/ethernet-udp-multicast.md)
- [USB - FS](https://tk233.gitbook.io/notes/stm32/connectivity/usb-fs.md)
- [USB - HS](https://tk233.gitbook.io/notes/stm32/connectivity/usb-hs.md)