I don't know anything about MIDI, but here is my shot in the dark. If you want to use just the nunchuck and Arduino, here is the data flow. The nunchuck sends its sensor data to the Arduino over I2C. The Arduino then relays this data to your PC over its serial connection. You would then have to write your own program on the PC side to read that in an put it into a MIDI program. The last part I have no idea how to do, since I have never worked with MIDI.
Some other people have already got the wiimote to work with MIDI, you could probably look at their code for an example. Of course they get their data from blue tooth rather than the Arduinos serial connection.
http://crustea.vjfrance.com/article-130714.html
http://createdigitalmusic.com/2006/12/07/midi-control-for-music-with-wii-remote-teaser/
http://screenfashion.org/2007/04/the_wiinstrument.html (uses both nunchuck and wiimote)
I don't know anything about
I don't know anything about MIDI, but here is my shot in the dark. If you want to use just the nunchuck and Arduino, here is the data flow. The nunchuck sends its sensor data to the Arduino over I2C. The Arduino then relays this data to your PC over its serial connection. You would then have to write your own program on the PC side to read that in an put it into a MIDI program. The last part I have no idea how to do, since I have never worked with MIDI.
Some other people have already got the wiimote to work with MIDI, you could probably look at their code for an example. Of course they get their data from blue tooth rather than the Arduinos serial connection.
http://crustea.vjfrance.com/article-130714.html
http://createdigitalmusic.com/2006/12/07/midi-control-for-music-with-wii-remote-teaser/
http://screenfashion.org/2007/04/the_wiinstrument.html (uses both nunchuck and wiimote)
good luck!