The NFC API provides connectivity between NFC enabled devices.
NFC is an extremely short-range (less than 20 centimeters) wireless technology and has a maximum transfer rate of 424 kbit/s. NFC is ideal for transferring small packets of data when two devices are touched together.
The NFC API provides APIs for interacting with NFC Forum Tags and NFC Forum Devices, including target detection and loss, registering NDEF message handlers, reading and writing NDEF messages on NFC Forum Tags and sending tag specific commands.
find_package() command to locate the needed module components in the
find_package(Qt6 COMPONENTS Nfc REQUIRED) target_link_libraries(mytarget PRIVATE Qt::Nfc)
See also the Build with CMake overview.
To configure the module for building with qmake, add the module as a value of the
QT variable in the project's .pro file:
QT += nfc
Changes to Qt NFC lists important changes in the module API and functionality that were done for the Qt 6 series of Qt.
Qt NFC is available under commercial licenses from The Qt Company. In addition, it is available under free software licenses. Since Qt 5.4, these free software licenses are GNU Lesser General Public License, version 3, or the GNU General Public License, version 2. See Qt Licensing for further details.
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