> For the complete documentation index, see [llms.txt](https://makermoekoe.gitbook.io/picoclick-c3/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards.md).

# Extension Boards

- [Motion sensor](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards/motion-sensor.md)
- [Distance sensor](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards/distance-sensor.md)
- [PIR sensor](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards/pir-sensor.md)
- [Light sensor](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards/light-sensor.md)
- [GPIO expander](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards/gpio-expander.md)
- [Encoder](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards/encoder.md)
- [OLED 0.49"](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards/oled-0.49.md)
- [OLED 0.69"](https://makermoekoe.gitbook.io/picoclick-c3/extension-boards/oled-0.69.md)