Copyrights and Licenses
***********************

Software Copyrights
===================

All original source code in this repository is Copyright (C) 2021-2025 Espressif Systems.
This source code is licensed under the Apache License 2.0 as described in the file
:project_file:`LICENSE <LICENSE>`.

Additional third party copyrighted code is included under the following licenses.

Where source code headers specify Copyright & License information,
this information takes precedence over the summaries made here.

Some examples use external components which are not Apache licensed,
please check the copyright description in each example source code.

ESP-IDF
-------

* `ESP-IDF`_ is licensed under the Apache License 2.0, as described in its `copyright and license document`_.

Matter SDK
----------

* The `Matter SDK`_ is licensed under the Apache License 2.0 as described in the file `LICENSE`_ file.

Managed Components from Espressif's Component Registry
------------------------------------------------------

* `espressif/mdns`_ is licensed under the Apache License 2.0.
* `espressif/esp_secure_cert_mgr`_ is licensed under the Apache License 2.0.
* `espressif/esp_encrypted_img`_ is licensed under the Apache License 2.0.
* `espressif/esp_insights`_ is licensed under the Apache License 2.0.
* `espressif/json_parser`_ is licensed under the Apache License 2.0.
* `espressif/json_generator`_ is licensed under the Apache License 2.0.
* `espressif/led_strip`_ is licensed under the Apache License 2.0.
* `espressif/button`_ is licensed under the Apache License 2.0.

Documentation
-------------

* HTML version of the `ESP-Matter Programming Guide`_ uses the Sphinx theme `sphinx_idf_theme`_,
  which is Copyright (c) 2013-2020 Dave Snider, Read the Docs, Inc. & contributors,
  and Espressif Systems (Shanghai) CO., LTD. It is based on `sphinx_rtd_theme`_.
  Both are licensed under MIT license.

.. _ESP-IDF: https://github.com/espressif/esp-idf
.. _Matter SDK: https://github.com/project-chip/connectedhomeip
.. _LICENSE: https://github.com/espressif/esp-matter/blob/master/LICENSE
.. _sphinx_idf_theme: https://github.com/espressif/sphinx_idf_theme
.. _sphinx_rtd_theme: https://github.com/readthedocs/sphinx_rtd_theme
.. _ESP-Matter Programming Guide: https://docs.espressif.com/projects/esp-matter/en/latest
.. _copyright and license document: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/COPYRIGHT.html
.. _Espressif Component Registry: https://components.espressif.com
.. _espressif/mdns: https://components.espressif.com/components/espressif/mdns
.. _espressif/esp_secure_cert_mgr: https://components.espressif.com/components/espressif/esp_secure_cert_mgr
.. _espressif/esp_encrypted_img: https://components.espressif.com/components/espressif/esp_encrypted_img
.. _espressif/esp_insights: https://components.espressif.com/components/espressif/esp_insights
.. _espressif/json_parser: https://components.espressif.com/components/espressif/json_parser
.. _espressif/json_generator: https://components.espressif.com/components/espressif/json_generator
.. _espressif/led_strip: https://components.espressif.com/components/espressif/led_strip
.. _espressif/button: https://components.espressif.com/components/espressif/button