| .. | 
 |     Zephyr Project documentation main file | 
 |  | 
 | .. _zephyr-home: | 
 |  | 
 | Zephyr Project Documentation | 
 | ############################ | 
 |  | 
 | .. only:: release | 
 |  | 
 |    Welcome to the Zephyr Project's documentation for version |version|. | 
 |  | 
 |    Documentation for the latest (main) development branch of Zephyr | 
 |    can be found at https://docs.zephyrproject.org/ | 
 |  | 
 | .. only:: (development or daily) | 
 |  | 
 |    **Welcome to the Zephyr Project's documentation | 
 |    for the main tree under development** (version |version|). | 
 |  | 
 | Use the version selection menu on the left to view | 
 | documentation for a specific version of Zephyr. | 
 |  | 
 |  | 
 | .. raw:: html | 
 |  | 
 |    <ul class="grid"> | 
 |        <li class="grid-item"> | 
 | 	   <a href="introduction/index.html"> | 
 | 	       <img alt="" src="_static/images/kite.png"/> | 
 | 	       <h2>Introduction</h2> | 
 | 	   </a> | 
 | 	   <p>Architecture, features & licensing details</p> | 
 |        </li> | 
 |        <li class="grid-item"> | 
 | 	   <a href="develop/getting_started/index.html"> | 
 |                <span class="grid-icon fa fa-map-signs"></span> | 
 | 	       <h2>Getting Started Guide</h2> | 
 | 	   </a> | 
 | 	   <p>Set up Zephyr, build & run a sample application</p> | 
 |        </li> | 
 |        <li class="grid-item"> | 
 | 	   <a href="samples/index.html"> | 
 |                <span class="grid-icon fa fa-cogs"></span> | 
 | 	       <h2>Samples and Demos</h2> | 
 | 	   </a> | 
 | 	   <p>Explore samples and demos for various boards</p> | 
 |        </li> | 
 |        <li class="grid-item"> | 
 | 	   <a href="boards/index.html"> | 
 |                <span class="grid-icon fa fa-object-group"></span> | 
 | 	       <h2>Supported Boards</h2> | 
 | 	   </a> | 
 | 	   <p>List of supported boards and platforms</p> | 
 |        </li> | 
 |        <li class="grid-item"> | 
 | 	   <a href="hardware/index.html"> | 
 |                <span class="grid-icon fa fa-sign-in"></span> | 
 | 	       <h2>Hardware Support</h2> | 
 | 	   </a> | 
 | 	   <p>Supported hardware and porting guides</p> | 
 |        </li> | 
 |        <li class="grid-item"> | 
 | 	   <a href="security/index.html"> | 
 |                <span class="grid-icon fa fa-lock"></span> | 
 | 	       <h2>Security</h2> | 
 | 	   </a> | 
 | 	   <p>Security processes and guidelines</p> | 
 |        </li> | 
 |        <li class="grid-item"> | 
 | 	   <a href="services/index.html"> | 
 |                <span class="grid-icon fa fa-puzzle-piece"></span> | 
 | 	       <h2>OS Services</h2> | 
 | 	   </a> | 
 | 	   <p>OS Services and usage guides</p> | 
 |        </li> | 
 |        <li class="grid-item"> | 
 | 	   <a href="contribute/index.html"> | 
 |                <span class="grid-icon fa fa-github"></span> | 
 | 	       <h2>Contribution Guidelines</h2> | 
 | 	   </a> | 
 | 	   <p>How to submit patches and contribute to Zephyr</p> | 
 |        </li> | 
 |    </ul> | 
 |  | 
 | For information about the changes and additions for past releases, please | 
 | consult the published :ref:`zephyr_release_notes` documentation. | 
 |  | 
 | The Zephyr OS is provided under the `Apache 2.0 license`_ (as found in | 
 | the LICENSE file in the project's `GitHub repo`_).  The Zephyr OS also | 
 | imports or reuses packages, scripts, and other files that use other | 
 | licensing, as described in :ref:`Zephyr_Licensing`. | 
 |  | 
 | .. toctree:: | 
 |    :maxdepth: 1 | 
 |    :hidden: | 
 |  | 
 |    introduction/index.rst | 
 |    develop/index.rst | 
 |    kernel/index.rst | 
 |    services/index.rst | 
 |    build/index.rst | 
 |    connectivity/index.rst | 
 |    hardware/index.rst | 
 |    contribute/index.rst | 
 |    project/index.rst | 
 |    security/index.rst | 
 |    safety/index.rst | 
 |    samples/index.rst | 
 |    boards/index.rst | 
 |    releases/index.rst | 
 |  | 
 | Indices and Tables | 
 | ****************** | 
 |  | 
 | * :ref:`glossary` | 
 | * :ref:`genindex` | 
 |  | 
 | .. _Apache 2.0 license: | 
 |    https://github.com/zephyrproject-rtos/zephyr/blob/main/LICENSE | 
 |  | 
 | .. _GitHub repo: https://github.com/zephyrproject-rtos/zephyr |