Le Speaker de la Wiimote décrypté

Il est maintenant possible d'utiliser la haut-parleur de la Wiimote sur PC, afin d'y envoyer des sons, de la musique etc...

Voici un script pour GlovePIE (v0.27 ou 0.28) permettant d'emettre des sons sur la Wiimote :)
Il suffit de copier/coller ceci dans GlovePIE et de cliquer sur "Run"

// Carl Kenner's Wiimote Speaker Test script! Version 2
// A = start sound, B = stop sound
// Minus = decrease sample frequency
// Plus = increase sample frequency
// It takes a short time to start (due to delays built into Poke)

// Change the next line to set the rate at which sound data is sent
// BUT it must be low enough for the wiimote to respond to the B button
// it may depend on your PC speed. Must be at least 91 for freq 13.
pie.FrameRate = 120 Hz

if not var.initialized then
var.freq = 13 // Set sample rate = 3640 Hz (so computer can keep up)
var.volume = 0x40 // volume = 40 ??? Seems to be about max
debug = var.freq
var.initialized = true
end if

if var.On and (not Wiimote.One) and (not Wiimote.Two) then
// Report 18, send 20 bytes, square wave, 1/4 sample rate freq
WiimoteSend(1, 0x18, 20 shl 3, 0xCC,0x33,0xCC,0x33,0xCC,0x33,0xCC,0x33,0xCC,0x33, 0xCC,0x33,0xCC,0x33,0xCC,0x33,0xCC,0x33,0xCC,0x33)
else if var.On and Wiimote.One then
// Report 18, send 20 bytes, square wave, 1/2 sample rate freq
WiimoteSend(1, 0x18, 20 shl 3, 0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3, 0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3)
else if var.On and Wiimote.Two then
// Report 18, send 20 bytes, square wave, 1/8 sample rate freq
WiimoteSend(1, 0x18, 20 shl 3, 0xCC,0xCC,0x33,0x33,0xCC,0xCC,0x33,0x33,0xCC,0xCC, 0x33,0x33,0xCC,0xCC,0x33,0x33,0xCC,0xCC,0x33,0x33)
end if


if pressed(Wiimote.A) then
// Enable Speaker
Wiimote.Report14 = 0x04 | Int(Wiimote.Rumble)
// Mute Speaker
Wiimote.Report19 = 0x04 | Int(Wiimote.Rumble)
// Write 0x01 to register 0xa20009
WiimotePoke(1, 0x04a20009, 0x01)
// Write 0x08 to register 0xa20001
WiimotePoke(1, 0x04a20001, 0x08)
// Write 7-byte configuration to registers 0xa20001-0xa20008
WiimotePoke(1, 0x04a20001, 0x00)
WiimotePoke(1, 0x04a20002, 0x00)
WiimotePoke(1, 0x04a20003, 0x00)
WiimotePoke(1, 0x04a20004, var.freq)
WiimotePoke(1, 0x04a20005, var.volume) // 40
WiimotePoke(1, 0x04a20006, 0x00)
WiimotePoke(1, 0x04a20007, 0x00)
// Write 0x01 to register 0xa20008
WiimotePoke(1, 0x04a20008, 0x01)
// Unmute speaker
Wiimote.Report19 = 0x00 | Int(Wiimote.Rumble)
var.On = true
end if
if Wiimote.Home then
var.freq= abs(Wiimote.RawForceY)
if var.freq <13
var.freq=13
endif
debug = var.freq
WiimotePoke(1, 0x04a20004, var.freq)
WiimotePoke(1, 0x04a20005, var.volume)
end if

if pressed(Wiimote.B) then
var.On = false
Wiimote.Report19 = 0x04 | Int(Wiimote.Rumble) // Mute Speaker
Wiimote.Report14 = 0x00 | Int(Wiimote.Rumble) // Disable speaker
end if

if pressed(Wiimote.Plus) then
var.freq--
debug = var.freq
// Mute Speaker
Wiimote.Report19 = 0x04 | Int(Wiimote.Rumble)
// Write 0x01 to register 0xa20009
WiimotePoke(1, 0x04a20009, 0x01)
// Write 0x08 to register 0xa20001
WiimotePoke(1, 0x04a20001, 0x08)
// Write 7-byte configuration to registers 0xa20001-0xa20008
WiimotePoke(1, 0x04a20001, 0x00)
WiimotePoke(1, 0x04a20002, 0x00)
WiimotePoke(1, 0x04a20003, 0x00)
WiimotePoke(1, 0x04a20004, var.freq) // max volume?
WiimotePoke(1, 0x04a20005, var.volume)
WiimotePoke(1, 0x04a20006, 0x00)
WiimotePoke(1, 0x04a20007, 0x00)
// Write 0x01 to register 0xa20008
WiimotePoke(1, 0x04a20008, 0x01)
// Unmute speaker
Wiimote.Report19 = 0x00 | Int(Wiimote.Rumble)
end if

if pressed(Wiimote.Minus) then
var.freq++
debug = var.freq
// Mute Speaker
Wiimote.Report19 = 0x04 | Int(Wiimote.Rumble)
// Write 0x01 to register 0xa20009
WiimotePoke(1, 0x04a20009, 0x01)
// Write 0x08 to register 0xa20001
WiimotePoke(1, 0x04a20001, 0x08)
// Write 7-byte configuration to registers 0xa20001-0xa20008
WiimotePoke(1, 0x04a20001, 0x00)
WiimotePoke(1, 0x04a20002, 0x00)
WiimotePoke(1, 0x04a20003, 0x00)
WiimotePoke(1, 0x04a20004, var.freq) // max volume?
WiimotePoke(1, 0x04a20005, var.volume)
WiimotePoke(1, 0x04a20006, 0x00)
WiimotePoke(1, 0x04a20007, 0x00)
// Write 0x01 to register 0xa20008
WiimotePoke(1, 0x04a20008, 0x01)
// Unmute speaker
Wiimote.Report19 = 0x00 | Int(Wiimote.Rumble)
end if

Appuyer sur A pour mettre en marche le Speaker
Appuyer sur B pour arrêter le speaker
Rester appuyer sur Home pour diminuer la fréquence
Appuyer sur - pour diminuer la fréquence
Appuyer sur + pour augmenter la fréquence
Appuyer sur 1 ou 2 pour changer le rythme

Des applications plus concrètent risque d'arriver très bientôt (pour WiiTar et WiiLaser par exemple).
Maintenant toutes les fonctionnalités de la Wiimote sont exploitables, reste a avoir des applications qui gèrent tout ça :)