lejos.nxt
Class RCXLightSensor

java.lang.Object
  lejos.nxt.RCXLightSensor

All Implemented Interfaces:

SensorConstants

public class RCXLightSensor
extends Object
implements SensorConstants

Abstraction for an RCX light sensor.

Field Summary

Fields inherited from interface lejos.nxt.SensorConstants

MODE_ANGLESTEP, MODE_BOOLEAN, MODE_CELSIUS, MODE_FARENHEIT, MODE_PCTFULLSCALE, MODE_PERIODCOUNTER, MODE_RAW, MODE_TRANSITIONCNT, TYPE_ANGLE, TYPE_CUSTOM, TYPE_LIGHT_ACTIVE, TYPE_LIGHT_INACTIVE, TYPE_LOWSPEED, TYPE_LOWSPEED_9V, TYPE_NO_SENSOR, TYPE_REFLECTION, TYPE_SOUND_DB, TYPE_SOUND_DBA, TYPE_SWITCH, TYPE_TEMPERATURE

Constructor Summary

RCXLightSensor(LegacySensorPort port)
Create an RCX light sensor object attached to the specified port.

Method Summary

void	activate() Activates an RCX light sensor.
void	passivate() Passivates an RCX light sensor.
int	readValue() Read the current sensor value.

Methods inherited from class java.lang.Object

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

Constructor Detail

RCXLightSensor

public RCXLightSensor(LegacySensorPort port)

Create an RCX light sensor object attached to the specified port. The sensor will be activated, i.e. the LED will be turned on.

Parameters:

port - port, e.g. Port.S1

Method Detail

activate

public void activate()

Activates an RCX light sensor. This method should be called if you want to get accurate values from an RCX sensor. In the case of RCX light sensors, you should see the LED go on when you call this method.

passivate

public void passivate()

Passivates an RCX light sensor.

readValue

public int readValue()

Read the current sensor value.

Returns:

Value as a percentage.