ch.aplu.robotsim

Class SoundSensor

java.lang.Object

Actor

ch.aplu.robotsim.Part

ch.aplu.robotsim.SoundSensor

public class SoundSensor
extends Part

Class that represents a NXT sound sensor. The sound is taken from the standard audio device. A microphone must be available. This is a dublicate of NxtSoundSensor to remain compatible with older versions.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	addSoundListener(SoundListener listener) Registers the given sound listener with default trigger level 50.
void	addSoundListener(SoundListener listener, int triggerLevel) Registers the given sound listener for the given trigger level.
int	getValue() Polls the sensor.
void	sampleReceived(int count)
int	setTriggerLevel(int triggerLevel) Sets a new trigger level and returns the previous one.

Methods inherited from class java.lang.Object

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

Constructor Detail

SoundSensor

public SoundSensor(SensorPort port)

Creates a sensor instance connected to the given port. Only one sensor instance is allowed.

Parameters:

port - the port where the sensor is plugged-in

Method Detail

addSoundListener

public void addSoundListener(SoundListener listener,
                             int triggerLevel)

Registers the given sound listener for the given trigger level.

Parameters:

listener - the SoundListener to register

triggerLevel - the trigger level where the callback is triggered

addSoundListener

public void addSoundListener(SoundListener listener)

Registers the given sound listener with default trigger level 50.

Parameters:

listener - the SoundListener to register

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

sampleReceived

public void sampleReceived(int count)

getValue

public int getValue()

Polls the sensor. Calls Thread.sleep(1) to prevent CPU overload in close polling loops.

Returns:

the current value the sensor reported: 0 (quiet) .. 150 (loud)