The Qt Company licensing includes LGPL-3;
Licensed under the LGPL License, Version 3 (the "License").
The software uses a dynamically linked Qt library and uses the LGPL version of Qt;.
You may find the LGPPL-3 text in the software directory.
You may not use this file except in compliance with the License.
You may obtain a copy of the License at
	https://www.gnu.org/licenses/lgpl-3.0.html
	
	
Mainly uses the Qt library:
QtCore
QtGUI
QtWidgets
QtSerialPort
QtMultimedia
QtPrintSupport
QtNetwork

These Frameworks  are available under The GNU Lesser General Public License, version 3(LGPL-3) from The Qt Company.See Qt Licensing for further details.