ch.aplu.ev3

Class NxtUltrasonicSensor

java.lang.Object

ch.aplu.ev3.Part

ch.aplu.ev3.Sensor

ch.aplu.ev3.NxtUltrasonicSensor

public class NxtUltrasonicSensor
extends Sensor

Class that represents a NXT ultrasonic sensor.

Constructor Summary

Constructors

Constructor and Description
NxtUltrasonicSensor() Creates a sensor instance connected to port S1.
NxtUltrasonicSensor(SensorPort port) Creates a sensor instance connected to the given port.

Method Summary

Methods

Modifier and Type	Method and Description
void	addUltrasonicListener(UltrasonicListener ultrasonicListener) Registers the given ultrasonic listener with default trigger level 20.
void	addUltrasonicListener(UltrasonicListener ultrasonicListener, int triggerLevel) Registers the given ultrasonic listener for the given trigger level.
int	getDistance() Polls the sensor.
lejos.hardware.sensor.NXTUltrasonicSensor	getLejosSensor() Returns the reference of the the underlying lejos.hardware.sensor.NXTUltrasonicSensor.
int	setTriggerLevel(int triggerLevel) Sets a new trigger level and returns the previous one.

Methods inherited from class ch.aplu.ev3.Sensor

getLejosPort

Methods inherited from class java.lang.Object

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

Constructor Detail

NxtUltrasonicSensor

public NxtUltrasonicSensor(SensorPort port)

Creates a sensor instance connected to the given port.

Parameters:

port - the port where the sensor is plugged-in

NxtUltrasonicSensor

public NxtUltrasonicSensor()

Creates a sensor instance connected to port S1.

Method Detail

addUltrasonicListener

public void addUltrasonicListener(UltrasonicListener ultrasonicListener,
                         int triggerLevel)

Registers the given ultrasonic listener for the given trigger level.

Parameters:

ultrasonicListener - the UltrasonicListener to become registered.

triggerLevel - the trigger level where the callback is triggered

addUltrasonicListener

public void addUltrasonicListener(UltrasonicListener ultrasonicListener)

Registers the given ultrasonic listener with default trigger level 20.

Parameters:

ultrasonicListener - the UltrasonicListener to become registered.

setTriggerLevel

public int setTriggerLevel(int triggerLevel)

Sets a new trigger level and returns the previous one.

Parameters:

triggerLevel - the new trigger level

Returns:

the previous trigger level

getDistance

public int getDistance()

Polls the sensor.

Returns:

the current value the sensor reported (in cm), 255 if the sensor does not detect a target.

getLejosSensor

public lejos.hardware.sensor.NXTUltrasonicSensor getLejosSensor()

Returns the reference of the the underlying lejos.hardware.sensor.NXTUltrasonicSensor.

Returns:

the reference of the lejos.hardware.sensor.NXTUltrasonicSensor