![](//d33sqmjvzgs8hq.cloudfront.net/wp-
content/themes/oneqt/assets/images/cookie_small.png)

We bake cookies in your browser for a better experience. Using this site means
that you consent. [Read More](//qt.io/terms-conditions/)

Menu

  * [ Partners ](//qt.io/partners/)
  * [ Blog ](https://blog.qt.io/)

[ ](https://qt.io/)

  * [Download](https://qt.io/download/)
  * [Device Creation](https://www.qt.io/qt-for-device-creation/)
  * [Application Development](https://www.qt.io/application-development/)
  * [Services](https://www.qt.io/services/)
  * [Developers](https://www.qt.io/developers/)

  * [EN](https://qt.io/support/)
  * [RU](https://qt.io/ru/)
  * [ZH](https://qt.io/zh-hans/)

#

  * [Wiki](https://wiki.qt.io/)
  * [Documentation](https://doc.qt.io/)
  * [Forum](https://forum.qt.io/)
  * [Bug Reports](https://bugreports.qt.io/)
  * [Code Review](https://codereview.qt-project.org/)
  * [Resource Center](https://resources.qt.io/)
  * [Qt Extensions](https://marketplace.qt.io/)

# Qt Documentation

  * [Qt 5.12](index.html)
  * [Qt WebEngine](qtwebengine-index.html)
  * [Qt WebEngine Licensing](qtwebengine-licensing.html)
  * Sudden Motion Sensor library

# Sudden Motion Sensor library

[Project Homepage](http://www.suitable.com/tools/smslib.html)

    
    
    SMSLib Sudden Motion Sensor Access Library
    Copyright (c) 2010 Suitable Systems
    All rights reserved.
    
    Developed by: Daniel Griscom
                  Suitable Systems
                  http://www.suitable.com
    
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the
    "Software"), to deal with the Software without restriction, including
    without limitation the rights to use, copy, modify, merge, publish,
    distribute, sublicense, and/or sell copies of the Software, and to
    permit persons to whom the Software is furnished to do so, subject to
    the following conditions:
    
    - Redistributions of source code must retain the above copyright notice,
    this list of conditions and the following disclaimers.
    
    - Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimers in the
    documentation and/or other materials provided with the distribution.
    
    - Neither the names of Suitable Systems nor the names of its
    contributors may be used to endorse or promote products derived from
    this Software without specific prior written permission.
    
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR
    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
    SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.
    
    For more information about SMSLib, see
       &lt;http://www.suitable.com/tools/smslib.html&gt;
    or contact
       Daniel Griscom
       Suitable Systems
       1 Centre Street, Suite 204
       Wakefield, MA 01880
       (781) 665-0053

© 2020 The Qt Company Ltd. Documentation contributions included herein are the
copyrights of their respective owners. The documentation provided herein is
licensed under the terms of the [GNU Free Documentation License version
1.3](https://www.gnu.org/licenses/fdl.html) as published by the Free Software
Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in
Finland and/or other countries worldwide. All other trademarks are property of
their respective owners.

  * [Download](https://qt.io/download/)
    * [Start for Free](https://qt.io/download/)
    * [Qt for Application Development](https://qt.io/download-eval-for-applications-step-2/)
    * [Qt for Device Creation](https://qt.io/request-eval-for-devices-step-2/)
    * [Qt Open Source](https://qt.io/download-open-source/)
    * [Terms & Conditions](https://qt.io/terms-conditions/)
    * [Licensing FAQ](https://qt.io/FAQ/)
  * [Product](https://qt.io/product/)
    * [Qt in Use](https://qt.io/product/)
    * [Qt for Application Development](https://qt.io/application-development/)
    * [Qt for Device Creation](https://qt.io/qt-for-device-creation/)
    * [Commercial Features](https://qt.io/qt-features/)
    * [Qt Creator IDE](https://qt.io/ide/)
    * [Qt Quick](https://qt.io/qt-quick/)
  * [Services](https://qt.io/services/)
    * [Technology Evaluation](https://qt.io/services-technology-evaluation/)
    * [Proof of Concept](https://qt.io/services-proof-of-concept/)
    * [Design & Implementation](https://qt.io/services-design-implementation/)
    * [Productization](https://qt.io/services-productization/)
    * [Qt Training](https://qt.io/qt-training/)
    * [Partner Network](https://qt.io/partners/)
  * [Developers](https://qt.io/developers/)
    * [Qt Extensions](https://marketplace.qt.io/)
    * [Examples & Tutorials](https://doc.qt.io/qt-5/qtexamplesandtutorials.html)
    * [Development Tools](https://doc.qt.io/qt-5/topics-app-development.html)
    * [Wiki](https://wiki.qt.io/)
    * [Forums](https://forum.qt.io/)
    * [Contribute to Qt](https://wiki.qt.io/contribute)
  * [About us](https://qt.io/about-us/)
    * [Training & Events](https://qt.io/events/)
    * [Resource Center](https://qt.io/resource-center/)
    * [News](https://qt.io/news/)
    * [Careers](https://qt.io/careers/)
    * [Locations](https://qt.io/locations/)
    * [Contact Us](https://qt.io/contact-us)

[](https://qt.io/about-us/)

  * [Sign In](https://account.qt.io/login "Sign into your account.")
  * [Feedback](mailto:feedback@theqtcompany.com?Subject=Feedback%20about%20doc.qt.io%20site)
  * [Contact us](https://qt.io/contact-us/)
  * [© 2020 The Qt Company](https://qt.io/about-us/)

