Symbian Belle devices support the use of sensors to enable better user interaction with the mobile devices.

  • Acceleration sensors

    Symbian Belle supports the use of acceleration sensors for movement-triggered functions. These sensors recognize device orientation (landscape/portrait and screen down/up) and tapping.

  • Light sensors

    Light sensors can be used, for example, to switch keypad lights on and off according to environment illumination.

  • Proximity sensors

    Determine when there is an object near or against the front face of the mobile device. This data can be used to switch off the screen touch sensitivity during a call to prevent the touch events from being triggered accidentally.

For more information, see Acceleration sensor.

Using sensors in C++ applications

Use the following APIs for sensors: Sensor channel API and Sensor definitions API. For more information, see Symbian C++ API specifications.