> For the complete documentation index, see [llms.txt](https://monasheng.gitbook.io/zerotohero/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://monasheng.gitbook.io/zerotohero/cots-parts-zero-to-hero/cots-parts/electronics.md).

# Electronics

- [Batteries](https://monasheng.gitbook.io/zerotohero/cots-parts-zero-to-hero/cots-parts/electronics/batteries.md)
- [Sensors](https://monasheng.gitbook.io/zerotohero/cots-parts-zero-to-hero/cots-parts/electronics/sensors.md)
- [I/O](https://monasheng.gitbook.io/zerotohero/cots-parts-zero-to-hero/cots-parts/electronics/i-o.md)