Classes and interfaces

The implementation supports the Mobile Sensor API as specified in the feature description but with the following exceptions.

ChannelInfo

The implementation defines the following data properties for sensor channels:

**Table:** Channel data properties
Sensor	Accuracy	Data type	Unit	Channel names
Accelerometer (raw values)	0.1	`TYPE_INT`	raw	`axis_x` `axis_y` `axis_z`
Accelerometer (SI values)	0.1	`TYPE_DOUBLE`	m/s^2	`axis_x` `axis_y` `axis_z`
Battery charge level	0	`TYPE_INT`	%	`battery_charge`
Charger state	0	`TYPE_INT`	boolean	`charger_state`
Double tap	0	`TYPE_INT`	int	`double_tap`
Network field intensity	0	`TYPE_INT`	%	`network_field_intensity`
Orientation	0	`TYPE_INT`	unit	`orientation`

The implementation defines the following measurement ranges for sensor channels:

Note: The values are specific to sensor device driver.

**Table:** Channel measurement ranges
Sensor	Channels	Largest value	Smallest value	Resolution
Accelerometer (raw values)	`axis_x` `axis_y` `axis_z`	127	-128	1
Accelerometer (SI values)	`axis_x` `axis_y` `axis_z`	19.6133	-19.6133	0.15322890625
Battery charge level	`battery_charge`	100	0	1
Charger state	`charger_state`	1	0	1
Network field intensity	`network_field_intensity`	100	0	1
Orientation	`orientation`	6	0	1

The double tap sensor supports only the following 3 return values:

**Table:** Double tap sensor return values
SENSOR_SAPI_TAP_LEFT_RIGHT	3
SENSOR_SAPI_TAP_TOP_BOTTOM	12
SENSOR_SAPI_TAP_FRONT_BACK	48

For more information about double tap sensor and receiving values from it, see How to receive input from the double tap sensor in the context of a game with Java ME.

For more information about the supported sensor channels, see Appendix E of the Mobile Sensor API specification.

SensorConnection

The implementation supports the following parameters for Connector.open for opening a SensorConnection:

**Table:** SensorConnection parameters
Function	<quantity>	<contextType>	<model>	<location>
Accelerometer (raw values)	`acceleration`	`user`	`Nokia2`	`NoLoc`
Accelerometer (SI values)	`acceleration`	`user`	`Nokia`	`NoLoc`
Battery charge level	`battery_charge`	`device`	`Nokia`	`device`
Charger state	`charger_state`	`device`	`Nokia`	`device`
Double tap	`double_tap`	`device`	`Nokia`	`device`
Network field intensity	`network_field_intensity`	`device`	`Nokia`	`device`
Orientation	`orientation`	`device`	`Nokia`	`device`

For a description of the terms, see section Finding and identifying sensors.

You can also retrieve the above values during runtime by calling SensorManager.findSensors(null, null).

SensorInfo

The implementation defines the following sensor properties:

**Table:** SensorInfo properties
Property	Type	Value
`PROP_LOCATION`	string	See `<location>` in table SensorConnection parameters in Series 40.
`PROP_MAX_RATE`	string	Maximum sampling rate (in Hz) supported by the sensor on the device. Note: The orientation and double tap sensors do not support this property as neither uses a sampling rate.
`PROP_VENDOR`	string	`Nokia`
`PROP_VERSION`	string	Supported API version on the device, for example `1.2`.

Sensors are always available, push MIDlets are not supported, and the maximum buffer size is 256. This results in the following return values for SensorInfo methods:

**Table:** SensorInfo query methods
Method	Type	Value
`getMaxBufferSize`	int	`256`
`isAvailable`	boolean	`true`
`isAvailabilityPushSupported`	boolean	`false`
`isConditionPushSupported`	boolean	`false`