Feature Description

Supported sensors

The implementation of this API for the S60 platform contains all mandatory but none of the optional parts of the API reference.

The following sensors are available:

• Accelerometer

  • Used to measure acceleration of the device on three different axes (x, y and z)

  • Can be used to measure acceleration of gravity to determine the orientation of the phone, or acceleration of movement of the phone

  • Returns output in two formats:

    • Raw (integer)

    • SI-acceleration values (m/s^2, double)

  • Sampling rate is by default 40 Hz. Symbian C++ S60 applications can change the value, but Java MIDlets cannot. If the sampling rate is changed, the MIDlet is notified only by the rate of accumulated measurement values.

• Battery charge level sensor

  • Used to measure the current battery charge level of the phone

  • Sampling rate is 10 Hz

• Charger state sensor

  • Used to check whether the device has been connected to a battery charger

  • Sampling rate is 10 Hz

• Network field intensity sensor

  • Used to measure the intensity of the currently used cellular network signal.

  • Sampling rate is more than 100 Hz

Excluded features

The following optional features are not supported in the implementation of the Mobile Sensor API:

• Controls (such as MeasurementRangeControl, SampleRateControl, StartControl or StopControl)

• Push MIDlet support