Qt Bluetooth
The Bluetooth API provides connectivity between Bluetooth enabled devices.
Currently, the API is supported on the following platforms: Android, iOS, Linux (BlueZ 4.x/5.x) and OS X.
Overview
Bluetooth is a short-range (less than 100 meters) wireless technology. It has a reasonably high data transfer rate of 2.1 Mbit/s, which makes it ideal for transferring data between devices. Bluetooth connectivity is based on basic device management, such as scanning for devices, gathering information about them, and exchanging data between them.
Qt Bluetooth supports Bluetooth Low Energy development for client/central role use cases. Further details can be found in the Bluetooth Low Energy Overview section.
A new addition in this Qt Bluetooth 5.7 release covers support for Bluetooth Low Energy applications performing the peripheral/server role. This new API is a Technology Preview.
Getting Started
To use the C++ library in your application, add the following configuration option to your .pro
file:
QT += bluetooth
To use the classes of the module in your application you need the following import statement in your .qml
file:
import QtBluetooth 5.2
Related Information
Guides
Reference
Logging Categories
The QtBluetooth module exports the following logging categories:
Logging Category | Description |
---|---|
qt.bluetooth | Enables logging of cross platform code path in QtBluetooth |
qt.bluetooth.android | Enables logging of the Android implementation |
qt.bluetooth.bluez | Enables logging of the BLuez/Linux implementation |
qt.bluetooth.ios | Enables logging of the iOS implementation |
qt.bluetooth.osx | Enables logging of the OS X implementation |