Qt class for reading 3-axis sensor data in (embedded) Linux

There are QObject-derived class and test app.

Tested on Linux 4.1 with standard drivers:

• accelerometer mma8451
• magnetometer mag3110

Example:

  ThreeAxisSensor accel("mma845x");
  QObject::connect(&accel, &ThreeAxisSensor::readingsChanged,
                   [](int x, int y, int z){
      qDebug()<<"x:" << x << "y:" << y << "z:" << z;
  });

  accel.setPollInterval(500);
  accel.setActive(true);

Class operates with driver's sysfs interface. Proper fiels finding automatically by given sensor name. Sensor name could be set in constructor or with setDevice(QString sensorName) method. It must be name of sensor's driver.

Note: class reads raw sensor data. To interpret data see to sensors' datasheet/appnote.