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Open source

Open-source software

The HydroCommander firmware and the app contain third-party software under open-source licenses. For each version you find all parts here with license, copyright notice and full license text.

On the device you find the same notices under Settings → System settings → Open-source licenses, in the app under Profile → Open-source licenses.

Firmware

App

Applies to the app on Android and iOS and to the demo in the browser at hydrocommander.com/app/, which ships the same packages.

LGPL offer

Some libraries (Arduino core for ESP32 with its libraries, arduinoWebSockets) are licensed under the GNU Lesser General Public License, version 2.1 (LGPL). You may modify them under its terms, relink the firmware with them and reverse engineer for debugging such modifications. For this purpose, the complete corresponding source code of these libraries, the object files of the remaining firmware and build instructions are available on request by email or letter, as a download link or on a physical medium, for no more than our cost of the medium and shipping. This offer is valid for each firmware version for at least three years after we last distributed it. Please write to: Stemp Systems, Tobias Stemp, Büchlbergerstraße 12, 94121 Salzweg, Germany, info@stemp-systems.de, subject “LGPL” and the firmware version.

Required notices

The respective licenses require these notices verbatim, which is why they are in English.

The author of this software is David M. Gay.

Copyright (c) 1991 by AT&T.

Permission to use, copy, modify, and distribute this software for any purpose without fee is hereby granted, provided that this entire notice is included in all copies of any software which is or includes a copy or modification of this software and in all copies of the supporting documentation for such software.

THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED WARRANTY. IN PARTICULAR, NEITHER THE AUTHOR NOR AT&T MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
The author of this software is David M. Gay.

Copyright (C) 1998-2001 by Lucent Technologies
All Rights Reserved

Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that the copyright notice and this permission notice and warranty disclaimer appear in supporting documentation, and that the name of Lucent or any of its entities not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission.

LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.