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

# Overview

## Document revisions and changes <a href="#toc473518121" id="toc473518121"></a>

<table><thead><tr><th width="112">Version</th><th>Changes</th></tr></thead><tbody><tr><td>1.0</td><td>Internal release</td></tr><tr><td> 1.1</td><td>Release</td></tr></tbody></table>

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## What are GPIO's?

GPIO (General Purpose Input/Output) are pins on the NVIDIA Jetson that can be configured to either input or output a digital signal. They are used to interface with external devices such as sensors, buttons, LEDs, etc.