ev3dev.hardware.sensor.ev3

Class EV3GyroSensor

java.lang.Object

ev3dev.hardware.Device

ev3dev.hardware.EV3DevSysfs

ev3dev.hardware.EV3DevDevice

ev3dev.hardware.sensor.BaseSensor

ev3dev.hardware.sensor.ev3.EV3GyroSensor

All Implemented Interfaces:

SensorMode, SensorModes, java.io.Closeable, java.lang.AutoCloseable, SampleProvider

public class EV3GyroSensor
extends BaseSensor

EV3 Gyro sensor
The digital EV3 Gyro Sensor measures the sensors rotational motion and changes in its orientation.

Supported modes
Mode name	Description	unit(s)	Getter
Angle	Measures the orientation of the sensor	Degrees	getAngleMode()
Rate	Measures the angular velocity of the sensor	Degrees / second	#getRateMode()
Rate and Angle	Measures both angle and angular velocity	Degrees, Degrees / second	#getAngleAndRateMode()

Sensor configuration
Use reset() to recalibrate the sensor and to reset accumulated angle to zero. Keep the sensor motionless during a reset. The sensor shuld also be motionless during initialization.

See Sensor Product page See The leJOS sensor framework See leJOS conventions for SampleProviders

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	EV3GyroSensor.AngleMode

Field Summary

Fields

Modifier and Type	Field and Description
private static long	SWITCHDELAY

Fields inherited from class ev3dev.hardware.sensor.BaseSensor

currentMode, currentModeS, modes

Fields inherited from class ev3dev.hardware.EV3DevDevice

PATH_DEVICE

Fields inherited from class ev3dev.hardware.Device

closeList

Constructor Summary

Constructors

Constructor and Description
EV3GyroSensor(java.lang.String sensorPort)

Method Summary

Modifier and Type	Method and Description
int	getAngle()
SampleProvider	getAngleMode() EV3 Gyro sensor, Angle mode Measures the orientation of the sensor in respect to its start orientation.
void	reset() Hardware calibration of the Gyro sensor and reset off accumulated angle to zero.

Methods inherited from class ev3dev.hardware.sensor.BaseSensor

fetchSample, getAvailableModes, getCurrentMode, getMode, getMode, getModeCount, getName, sampleSize, setCurrentMode, setCurrentMode, setModes, switchMode, switchMode

Methods inherited from class ev3dev.hardware.EV3DevDevice

connect, getIntegerAttribute, getStringAttribute, setIntegerAttribute, setStringAttribute

Methods inherited from class ev3dev.hardware.EV3DevSysfs

getElements, readFloat, readInteger, readString, writeInteger, writeString

Methods inherited from class ev3dev.hardware.Device

close, releaseOnClose

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SWITCHDELAY

private static final long SWITCHDELAY

See Also:

Constant Field Values

Constructor Detail

EV3GyroSensor

public EV3GyroSensor(java.lang.String sensorPort)

Method Detail

getAngleMode

public SampleProvider getAngleMode()

EV3 Gyro sensor, Angle mode
Measures the orientation of the sensor in respect to its start orientation.

Size and content of the sample
The sample contains one elements representing the orientation (in Degrees) of the sensor in respect to its start position.

Configuration
The start position can be set to the current position using the reset method of the sensor.

Returns:

A sampleProvider See leJOS conventions for SampleProviders

reset

public void reset()

Hardware calibration of the Gyro sensor and reset off accumulated angle to zero.
The sensor should be motionless during calibration.

getAngle

public int getAngle()