lejos.nxt
Class I2CSensor

java.lang.Object
  lejos.nxt.I2CSensor

All Implemented Interfaces:

SensorConstants

Direct Known Subclasses:

ColorSensor, CompassSensor, IRSeeker, NXTCam, RCXLink, RCXMotorMultiplexer, TiltSensor, UltrasonicSensor

public abstract class I2CSensor
extends Object
implements SensorConstants

Abstract class that implements common methods for all I2C sensors. Extend this class to implement new I2C sensors.

Author:

Lawrie Griffiths (lawrie.griffiths@ntlworld.com)

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

I2CSensor(I2CPort port)

Method Summary

int	getData(int register, byte[] buf, int len) Executes an I2C read transaction and waits for the result.
String	getProductID() Return the sensor product identifier.
String	getSensorType() Return the sensor type.
String	getVersion() Return the sensor version number.
int	sendData(int register, byte value) Executes an I2C write transaction.
int	sendData(int register, byte[] buf, int len) Executes an I2C write transaction.
void	setAddress(int addr)

Methods inherited from class java.lang.Object

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

Constructor Detail

I2CSensor

public I2CSensor(I2CPort port)

Method Detail

getData

public int getData(int register,
                   byte[] buf,
                   int len)

Executes an I2C read transaction and waits for the result.

Parameters:

register - I2C register, e.g 0x41

buf - Buffer to return data

len - Length of the return data

Returns:

status zero=success, non-zero=failure

sendData

public int sendData(int register,
                    byte[] buf,
                    int len)

Executes an I2C write transaction.

Parameters:

register - I2C register, e.g 0x42

buf - Buffer containing data to send

len - Length of data to send

Returns:

status zero=success, non-zero=failure

sendData

public int sendData(int register,
                    byte value)

Executes an I2C write transaction.

Parameters:

register - I2C register, e.g 0x42

value - single byte to send

Returns:

status zero=success, non-zero=failure

getVersion

public String getVersion()

Return the sensor version number.

Returns:

8-byte string

getProductID

public String getProductID()

Return the sensor product identifier.

Returns:

8-byte string

getSensorType

public String getSensorType()

Return the sensor type.

Returns:

8-byte string

setAddress

public void setAddress(int addr)