Opensource Usage
This page acknowledges the open-source libraries and third-party code that help make our products possible. We are grateful for the open-source community and comply with all attribution and licensing requirements, which are listed on this page.
If you have questions about any of the components or licenses listed below, please contact us using the information provided in our product documentation or on our support page.
1. Components Used and Their Licenses
ESP-IDF (Espressif IoT Development Framework)
License: Apache License, Version 2.0
Copyright: © Espressif Systems
Project Information: https://github.com/espressif/esp-idf
This product uses the ESP-IDF framework as provided by Espressif Systems. No modification is made to the terms of the Apache 2.0 license by the manufacturer. A copy of the Apache 2.0 license is included and/or linked in the “Copy of License Texts” section below.
FatFs Filesystem Module
License: BSD-style permissive license
Copyright: © ChaN
Project Information: http://elm-chan.org/fsw/ff/00index_e.html and http://elm-chan.org/fsw/ff/doc/appnote.html
This product uses the FatFs filesystem module. The FatFs license permits use in commercial products, subject to the attribution and conditions specified in the license text.
FreeRTOS Kernel
License: MIT License
Copyright: © Amazon.com, Inc. or its affiliates
Project Information: https://github.com/FreeRTOS/FreeRTOS
This product uses the FreeRTOS kernel. The MIT License permits use, copy, modification, merging, publication, distribution, sublicensing, and/or sale of copies of the software, subject to the terms of the license.
The MIT License does not require the disclosure of this product’s source code or derivative works, beyond the obligations specified in the license text itself (e.g., inclusion of copyright and permission notice where required).
lwIP TCP/IP Stack
License: BSD 3-Clause License
Copyright: © The lwIP Contributors
Project Information: https://savannah.nongnu.org/projects/lwip/
This product includes the lwIP TCP/IP stack. The BSD 3-Clause License permits redistribution in source and binary forms, with or without modification, subject to the conditions set out in the license.
The BSD 3-Clause License does not require disclosure of this product’s source code. Attribution and preservation of license notices are required as described in the license text.
Wireless & Connectivity Firmware (Proprietary)
This product includes precompiled proprietary firmware blobs for Wi-Fi and Bluetooth operation provided by Espressif Systems.
These firmware images are not open-source.
They may not be modified, reverse-engineered, or redistributed separately, except as explicitly permitted by their respective licenses or by Espressif Systems.
Their inclusion is required for wireless and connectivity functionality and they remain governed by their own license terms.
2. NO WARRANTY
All open-source components used in this product are provided by their respective authors and copyright holders “as is,” without warranties of any kind, either express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, or non-infringement.
The manufacturer provides no warranty of any kind with respect to the open-source components themselves. Any warranties for the product as a whole (if applicable) are provided separately and do not alter the “as-is” nature of the included open-source software.
For complete warranty details relating to the product, please refer to the product’s warranty statement and terms of sale.
3. Copy of License Texts
• Apache License 2.0: https://www.apache.org/licenses/LICENSE-2.0
• MIT License: https://opensource.org/licenses/MIT
• BSD 3-Clause License: https://opensource.org/licenses/BSD-3-Clause
• FatFs License: http://elm-chan.org/fsw/ff/doc/appnote.html
4. Additional Components
From time to time, additional open-source components or updated versions of existing components may be incorporated into the product via firmware or software updates. When this occurs, we will update this page or the associated documentation to include the relevant notices and license information, as applicable.