Package lejos.hardware.sensor

Class HiTechnicEOPD

java.lang.Object

lejos.hardware.Device

lejos.hardware.sensor.BaseSensor

lejos.hardware.sensor.AnalogSensor

lejos.hardware.sensor.HiTechnicEOPD

All Implemented Interfaces:

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

public class HiTechnicEOPD
extends AnalogSensor
implements SensorConstants

HiTechnic EOPD Sensor
The EOPD or Electro Optical Proximity Detector uses an internal light source to detect the presence of a target or determine changes in distance to a target.

Supported modes
Mode name	Description	unit(s)	Getter
Long Distance	Measures the relative distance to an object	N/A, a normalized value that represents the relative distance to an object. 0 = minimum range, 1 = maximum range.	getLongDistanceMode()
Short Distance	Measures the relative distance to an object	N/A, a normalized value that represents the relative distance to an object. 0 = minimum range, 1 = maximum range.	getShortDistanceMode()

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

Author:

Michael Smith

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	HiTechnicEOPD.ShortDistanceMode

Field Summary

Fields

Modifier and Type	Field	Description
protected static long	SWITCH_DELAY

Fields inherited from class lejos.hardware.sensor.AnalogSensor

currentType, port

Fields inherited from class lejos.hardware.sensor.BaseSensor

currentMode, modes

Fields inherited from class lejos.hardware.Device

closeList

Fields inherited from interface lejos.hardware.sensor.SensorConstants

BLACK, BLANK_INDEX, BLUE, BLUE_INDEX, BROWN, GREEN, GREEN_INDEX, MAX_TYPE, MIN_TYPE, MODE_RAW, NXT_ADC_RES, RED, RED_INDEX, TYPE_ANGLE, TYPE_COLORBLUE, TYPE_COLORFULL, TYPE_COLORGREEN, TYPE_COLORNONE, TYPE_COLORRED, TYPE_CUSTOM, TYPE_HIGHSPEED, TYPE_HIGHSPEED_9V, TYPE_HISPEED, 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, WHITE, YELLOW

Constructor Summary

Constructors

Constructor	Description
HiTechnicEOPD(AnalogPort port)
HiTechnicEOPD(Port port)

Method Summary

Modifier and Type	Method	Description
SensorMode	getLongDistanceMode()	HiTechnic EOPD sensor, Long distance mode Measures the relative distance to a surface.
SensorMode	getShortDistanceMode()	HiTechnic EOPD sensor, Short distance mode Measures the relative distance to a surface.
protected void	init()

Methods inherited from class lejos.hardware.sensor.AnalogSensor

normalize, NXTRawIntValue, NXTRawValue, switchType

Methods inherited from class lejos.hardware.sensor.BaseSensor

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

Methods inherited from class lejos.hardware.Device

close, releaseOnClose

Methods inherited from class java.lang.Object

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

Field Detail

SWITCH_DELAY

protected static final long SWITCH_DELAY

See Also:

Constant Field Values

Constructor Detail

HiTechnicEOPD

public HiTechnicEOPD(AnalogPort port)

Parameters:

port - NXT sensor port 1-4

HiTechnicEOPD

public HiTechnicEOPD(Port port)

Parameters:

port - NXT sensor port 1-4

Method Detail

init

protected void init()

getLongDistanceMode

public SensorMode getLongDistanceMode()

HiTechnic EOPD sensor, Long distance mode
Measures the relative distance to a surface.

Size and content of the sample
The sample contains one element containing the relative distance to a surface in the range of 0 to 1. Where 0 corresponds to the minimum of the measurement range and 1 corresponds to the maximum of the measyurement range. The measurement range depends on the color and reflectivity of the measured surface. The measurement is more or less linear to the distance for a given surface.

getShortDistanceMode

public SensorMode getShortDistanceMode()

HiTechnic EOPD sensor, Short distance mode
Measures the relative distance to a surface. This mode is suited for white objects at short distance.

Size and content of the sample
The sample contains one element containing the relative distance to a surface in the range of 0 to 1. Where 0 corresponds to the minimum of the measurement range and 1 corresponds to the maximum of the measyurement range. The measurement range depends on the color and reflectivity of the measured surface. The measurement is more or less linear to the distance for a given surface.