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.