The library now also support multiple Wiimotes

BTD.cpp

@@ -39,8 +39,6 @@ bPollEnable(false) // Don't start polling before dongle is connected
     
     if (pUsb) // register in USB subsystem
 		pUsb->RegisterDeviceClass(this); //set devConfig[] entry
-    
-    wiiServiceID = -1;
 }
 
 uint8_t BTD::Init(uint8_t parent, uint8_t port, bool lowspeed) {
@@ -735,13 +733,9 @@ void BTD::ACL_event_task() {
     uint16_t MAX_BUFFER_SIZE = BULK_MAXPKTSIZE;
     uint8_t rcode = pUsb->inTransfer(bAddress, epInfo[ BTD_DATAIN_PIPE ].epAddr, &MAX_BUFFER_SIZE, l2capinbuf); // input on endpoint 2  
     if(!rcode) { // Check for errors
-        if(connectToWii) // Only send the data to the Wii service
+        for (uint8_t i=0; i<BTD_NUMSERVICES; i++)
-            btService[wiiServiceID]->ACLData(l2capinbuf);
+            if (btService[i])
-        else {
+                btService[i]->ACLData(l2capinbuf);
-            for (uint8_t i=0; i<BTD_NUMSERVICES; i++)
-                if (btService[i])
-                    btService[i]->ACLData(l2capinbuf);
-        }
     }
 #ifdef EXTRADEBUG
     else if (rcode != hrNAK) {

BTD.h

@@ -181,8 +181,6 @@ public:
     uint8_t remote_name[30]; // First 30 chars of last remote name
     uint8_t hci_version;
     
-    int8_t wiiServiceID; // Stores the service ID of the Wii service
-    
     bool connectToWii; // Used to only send the ACL data to the wiimote
     bool incomingWii;
     bool pairWithWii;

Wii.cpp

@@ -28,7 +28,7 @@ WII::WII(BTD *p, bool pair):
 pBtd(p) // pointer to USB class instance - mandatory
 {
     if (pBtd)
-        pBtd->wiiServiceID = pBtd->registerServiceClass(this); // Register it as a Bluetooth service
+        pBtd->registerServiceClass(this); // Register it as a Bluetooth service
     
     pBtd->pairWithWii = pair;
             
@@ -48,6 +48,7 @@ void WII::Reset() {
     motionPlusConnected = false;
     activateNunchuck = false;
     motionValuesReset = false;
+    activeConnection = false;
     l2cap_event_flag = 0; // Reset flags
     l2cap_state = L2CAP_WAIT;
 }
@@ -61,7 +62,9 @@ void WII::disconnect() { // Use this void to disconnect any of the controllers
 }
 
 void WII::ACLData(uint8_t* l2capinbuf) {
-    if (((l2capinbuf[0] | (l2capinbuf[1] << 8)) == (hci_handle | 0x2000)) || pBtd->incomingWii) { // acl_handle_ok or it's a new connection
+    if (((l2capinbuf[0] | (l2capinbuf[1] << 8)) == (hci_handle | 0x2000)) || (pBtd->incomingWii && !wiimoteConnected && !activeConnection)) { // acl_handle_ok or it's a new connection
+        pBtd->incomingWii = false;
+        activeConnection = true;
         if ((l2capinbuf[6] | (l2capinbuf[7] << 8)) == 0x0001) { //l2cap_control - Channel ID for ACL-U
             if (l2capinbuf[8] == L2CAP_CMD_COMMAND_REJECT) {
 #ifdef DEBUG
@@ -577,7 +580,9 @@ void WII::L2CAP_task() {
 void WII::Run() {
     switch (l2cap_state) {
         case L2CAP_WAIT:
-            if(pBtd->connectToWii) {
+            if(pBtd->connectToWii && !pBtd->l2capConnectionClaimed && !wiimoteConnected && !activeConnection) {
+                pBtd->l2capConnectionClaimed = true;
+                activeConnection = true;
 #ifdef DEBUG
                 Notify(PSTR("\r\nSend HID Control Connection Request"));
 #endif

Wii.h

@@ -207,6 +207,7 @@ private:
     
     /* Variables filled from HCI event management */
     uint16_t hci_handle;
+    bool activeConnection; // Used to indicate if it's already has established a connection
     
     /* variables used by high level L2CAP task */    
     uint8_t l2cap_state;

examples/Bluetooth/WiiMulti/WiiMulti.ino

@@ -0,0 +1,113 @@
+/*
+ Example sketch for the Wiimote Bluetooth library - developed by Kristian Lauszus
+ This example show how one can use multiple controllers with the library
+ For more information visit my blog: http://blog.tkjelectronics.dk/ or 
+ send me an e-mail:  kristianl@tkjelectronics.com
+ */
+
+#include <Wii.h>
+USB Usb;
+BTD Btd(&Usb); // You have to create the Bluetooth Dongle instance like so
+//WII Wii(&Btd,PAIR); // You will have to pair each controller with the dongle before you can define the instances like below
+WII Wii_1(&Btd);
+WII Wii_2(&Btd);
+//WII Wii_3(&Btd); // You can create as many instances as you like, but it will take up a lot of RAM!!
+
+WII* Wii[2]; // We will use this pointer to store the two instance, you can easily make it larger if you like
+const uint8_t length = sizeof(Wii)/sizeof(Wii[0]); // Get the lenght of the array
+bool printAngle[length];
+
+void setup() {
+  Wii[0] = &Wii_1;
+  Wii[1] = &Wii_2;
+  //Wii[2] = &Wii_3; // You only need to uncomment this if you wanted to use another controller
+
+  Serial.begin(115200);
+  if (Usb.Init() == -1) {
+    Serial.print(F("\r\nOSC did not start"));
+    while(1); //halt
+  }
+  Serial.print(F("\r\nWiimote Bluetooth Library Started"));
+}
+void loop() {
+  Usb.Task();
+
+  for(uint8_t i=0;i<length;i++) {
+    if(!Wii[i]) continue; // Skip if it hasn't been defined
+    if(Wii[i]->wiimoteConnected) {
+      if(Wii[i]->getButtonClick(HOME)) { // You can use getButtonPress to see if the button is held down
+        Serial.print(F("\r\nHOME"));
+        Wii[i]->disconnect(); // Disconnect the Wiimote - it will establish the connection again since the Wiimote automatically reconnects
+      } 
+      else {
+        if(Wii[i]->getButtonClick(LEFT)) {
+          Wii[i]->setAllOff();
+          Wii[i]->setLedOn(LED1);
+          Serial.print(F("\r\nLeft"));
+        }
+        if(Wii[i]->getButtonClick(RIGHT)) {
+          Wii[i]->setAllOff();
+          Wii[i]->setLedOn(LED3);
+          Serial.print(F("\r\nRight"));
+        }
+        if(Wii[i]->getButtonClick(DOWN)) {
+          Wii[i]->setAllOff();
+          Wii[i]->setLedOn(LED4);
+          Serial.print(F("\r\nDown"));
+        }      
+        if(Wii[i]->getButtonClick(UP)) {
+          Wii[i]->setAllOff();
+          Wii[i]->setLedOn(LED2);          
+          Serial.print(F("\r\nUp"));
+        }
+
+        if(Wii[i]->getButtonClick(PLUS))
+          Serial.print(F("\r\nPlus"));
+        if(Wii[i]->getButtonClick(MINUS))
+          Serial.print(F("\r\nMinus"));
+
+        if(Wii[i]->getButtonClick(ONE))
+          Serial.print(F("\r\nOne"));
+        if(Wii[i]->getButtonClick(TWO))
+          Serial.print(F("\r\nTwo"));
+
+        if(Wii[i]->getButtonClick(A)) {
+          printAngle[i] = !printAngle[i];
+          Serial.print(F("\r\nA"));
+        }      
+        if(Wii[i]->getButtonClick(B)) {
+          Wii[i]->setRumbleToggle();
+          Serial.print(F("\r\nB"));
+        }
+      }
+      if(printAngle[i]) {
+        Serial.print(F("\r\nPitch: "));
+        Serial.print(Wii[i]->getPitch());
+        Serial.print(F("\tRoll: "));
+        Serial.print(Wii[i]->getRoll());
+        if(Wii[i]->motionPlusConnected) {
+          Serial.print(F("\tYaw: "));
+          Serial.print(Wii[i]->getYaw());
+        }      
+        if(Wii[i]->nunchuckConnected) {
+          Serial.print(F("\tNunchuck Pitch: "));
+          Serial.print(Wii[i]->nunchuckPitch);
+          Serial.print(F("\tNunchuck Roll: "));
+          Serial.print(Wii[i]->nunchuckRoll);
+        }
+      }
+    }
+    if(Wii[i]->nunchuckConnected) {
+      if(Wii[i]->getButtonClick(Z))
+        Serial.print(F("\r\nZ"));
+      if(Wii[i]->getButtonClick(C))
+        Serial.print(F("\r\nC"));
+      if(Wii[i]->getAnalogHat(HatX) > 137 ||  Wii[i]->getAnalogHat(HatX) < 117 || Wii[i]->getAnalogHat(HatY) > 137 || Wii[i]->getAnalogHat(HatY) < 117) {
+        Serial.print(F("\r\nHatX: "));
+        Serial.print(Wii[i]->getAnalogHat(HatX));
+        Serial.print(F("\tHatY: "));
+        Serial.print(Wii[i]->getAnalogHat(HatY));
+      }
+    }
+  }
+}