How to create your own Sensor

The Qt Sensors module provides access to sensor hardware via QML and C++ interfaces.

The API is supported on Android, iOS, and Windows (MSVC).

Creating your own sensor using C++ API

Using a Qt module's C++ API requires linking against the module library, either directly or through other dependencies.

Creating a sensor

To create your own sensor you can use the following steps:

• Create your own MySensor and MySensorReading classes

   class MyReadingPrivate;
  
   class MyReading : public QSensorReading
     {
       Q_OBJECT
       Q_PROPERTY(qreal myprop READ myprop)
       DECLARE_READING(MyReading)
   public:
       qreal myprop() const;
       void setMyprop(qreal myprop);
     };
  
   class MySensor : public QSensor
   {
       Q_OBJECT
   public:
       explicit MySensor(QObject *parent = 0);
       MyReading *reading() const;
       static char const * const sensorType;
     };
  

• Create a MySensorBackend by inheriting from QSensorBackend
• Create MySensorBackendFactory factory class for instantiating that backend by inheriting a class QSensorBackendFactory
• Register the backend factory by calling QSensorManager::registerBackend ("MySensorType", "MySensorId", &myfactory)
• Instantiate the new MySensor and start using it

As an another option the sensors are put into a Creating a sensor plugin that you can use on demand.