lejos.nxt.addon
Class TouchMUX

java.lang.Object
  lejos.nxt.addon.TouchMUX

public class TouchMUX
extends Object

Interface for the Mindsensors Touch Multiplexer. This device allows up to three touch sensors to be attached to a single NXT sensor port.

Author:

Andy

Field Summary

static int	ID_T1 Bit ID returned by readSensors when sensor T1 is pressed
static int	ID_T2 Bit ID returned by readSensors when sensor T1 is pressed
static int	ID_T3 Bit ID returned by readSensors when sensor T1 is pressed
static int	NUMBER_OF_SENSORS number of touch sensors supported by this device
Touch	T1 Instance for the touch sensor connected to port T1
Touch	T2 Instance for the touch sensor connected to port T2
Touch	T3 Instance for the touch sensor connected to port T3

Constructor Summary

TouchMUX(ADSensorPort port)
Create a object to provide access to a touch sensor multiplexer

Method Summary

Touch	getInstance(int id) Return a Touch interface providing access to the sensor specified by the given id.
int	readSensors() Read the touch multiplexer and return a bit mask showing which sensors are currently pressed.

Methods inherited from class java.lang.Object

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

Field Detail

NUMBER_OF_SENSORS

public static final int NUMBER_OF_SENSORS

number of touch sensors supported by this device

See Also:

Constant Field Values

ID_T1

public static final int ID_T1

Bit ID returned by readSensors when sensor T1 is pressed

See Also:

Constant Field Values

ID_T2

public static final int ID_T2

Bit ID returned by readSensors when sensor T1 is pressed

See Also:

Constant Field Values

ID_T3

public static final int ID_T3

Bit ID returned by readSensors when sensor T1 is pressed

See Also:

Constant Field Values

T1

public final Touch T1

Instance for the touch sensor connected to port T1

T2

public final Touch T2

Instance for the touch sensor connected to port T2

T3

public final Touch T3

Instance for the touch sensor connected to port T3

Constructor Detail

TouchMUX

public TouchMUX(ADSensorPort port)

Create a object to provide access to a touch sensor multiplexer

Parameters:

port - The NXT sensor port to which the multiplexer is attached

Method Detail

getInstance

public Touch getInstance(int id)

Return a Touch interface providing access to the sensor specified by the given id.

Parameters:

id - a number between 0..NUMBER_OF_SENSORS-1

Returns:

the requested Touch interface

readSensors

public int readSensors()

Read the touch multiplexer and return a bit mask showing which sensors are currently pressed. Returns ID_T1 if T1 is pressed, ID_T2 if T2 is pressed and ID_T3 id T3 is pressed. If more then one sensor is pressed the return will be an or of the values.

Returns:

bit mask showing which sensor buttons are pressed.