NUNCHUCK Class Reference

API for the Wii* Nunchuk controller. More...

Detailed Description

• ID: nunchuck
• Name: Wii Nunchuk
• Category: accelerometer
• Manufacturer: generic
• Link: http://wiibrew.org/wiki/Wiimote/Extension_Controllers
• Connection: i2c
• Kit: robok

UPM module for the Wii Nunchuk controller. This module was tested with Wii Nunchuk connected to I2C via a Grove Wii Nunchuk adapter.

See http://wiibrew.org/wiki/Wiimote/Extension_Controllers and http://wiibrew.org/wiki/Wiimote/Extension_Controllers/Nunchuck for more details on the controller and its protocol.

A warning for the Grove Wii Nunchuk adapter: it has 2 traces on one side, and 3 traces on the other. Do not match these up with the Nunchuk connector's traces. The connector's 'Grove' should be on the same side as the Grove interface socket on the adapter.

        // Instantiate a nunchuck controller bus 0
        upm_nunchuck.NUNCHUCK nunchuck = new upm_nunchuck.NUNCHUCK(0);

        // always do this first
        System.out.println("Initializing... ");
        if (!nunchuck.init()) {
            System.err.println("nunchuck->init() failed.");
            return;
        }

        while (true) {
            nunchuck.update();
            System.out.println("stickX: " + nunchuck.getStickX() + ", stickY: "
                    + nunchuck.getStickY());
            System.out.println("accelX: " + nunchuck.getAccelX() + ", accelY: "
                    + nunchuck.getAccelY() + ", accelZ: " + nunchuck.getAccelZ());

            if (nunchuck.getButtonC())
                System.out.println("Button C pressed");
            else
                System.out.println("Button C not pressed");

            if (nunchuck.getButtonZ())
                System.out.println("Button Z pressed");
            else
                System.out.println("Button Z not pressed");

            Thread.sleep(1000);
        }

Public Member Functions
synchronized void	delete ()
	NUNCHUCK (int bus, short addr)
	NUNCHUCK (int bus)
boolean	writeByte (short reg, short arg1)
int	readBytes (short reg, byte[] buffer)
boolean	init ()
void	update ()
void	setStickX (int value)
int	getStickX ()
void	setStickY (int value)
int	getStickY ()
void	setAccelX (int value)
int	getAccelX ()
void	setAccelY (int value)
int	getAccelY ()
void	setAccelZ (int value)
int	getAccelZ ()
void	setButtonC (boolean value)
boolean	getButtonC ()
void	setButtonZ (boolean value)
boolean	getButtonZ ()

Constructor & Destructor Documentation

NUNCHUCK	(	int	bus,
		short	addr
	)

NUNCHUCK constructor

Parameters

bus	I2C bus to use
addr	I2C address to use

Member Function Documentation

boolean init

(

)

Initializes the controller. Here, we disable encryption after delaying for a time to ensure the controller is ready.

Returns

True if initialization is successful

void update

(

)

Reads and updates the current state of the controller.

boolean writeByte	(	short	reg,
		short	arg1
	)

Writes value(s) into registers

Parameters

reg	Register location to start writing into
byte	Byte to write

Returns

True if successful

---

The documentation for this class was generated from the following file:

• /var/lib/jenkins/workspace/upm-doc-stable/build-33/src/nunchuck/NUNCHUCK.java