SON et ARDUINO

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1°) Emission de notes de musique :

Connecter le HP sur une broche digitale en ajoutant une résistance de 100 ohms.

Utilisez la commande tone (avec ici pin=8) :

tone(pin, frequency) ou tone(pin, frequency, duration)

Exemples de sketch :

http://arduino.cc/en/Tutorial/Tone3

et http://arduino.cc/en/Tutorial/Tone

2°) Lecture de fichier WAV :

Télécharger la librairie TMRpcm.h branchez une carte SD (cf. page SD) en ayant placé des fichiers au format wav et copiez le sketch suivant : (suivez le schéma ci-dessus décrit puis relier le HP en suivant les commentaires du sketch)

 #include <SD.h>           // need to include the SD library  
 //#define SD_ChipSelectPin 53 //example uses hardware SS pin 53 on Mega2560  
 //#define SD_ChipSelectPin 4 //using digital pin 4 on arduino nano 328, can use other pins  
 #include <TMRpcm.h>      // also need to include this library...  

 TMRpcm tmrpcm;  // create an object for use in this sketch  
 unsigned long time = 0;  
 void setup(){  
  tmrpcm.speakerPin = 9; //5,6,11 or 46 on Mega, 9 on Uno, Nano, etc  
  //Complimentary Output or Dual Speakers:  
  //pinMode(10,OUTPUT); Pin pairs: 9,10 Mega: 5-2,6-7,11-12,46-45   
  Serial.begin(9600);  
  pinMode(13,OUTPUT); //LED Connected to analog pin 0  
   Serial.print("Initializing SD card...");  
  // On the Ethernet Shield, CS is pin 4. It's set as an output by default.  
  // Note that even if it's not used as the CS pin, the hardware SS pin   
  // (10 on most Arduino boards, 53 on the Mega) must be left as an output   
  // or the SD library functions will not work.   
   pinMode(10, OUTPUT);  
  if (!SD.begin(10)) {  
   Serial.println("initialization failed!");  
   return;  
  }  
  Serial.println("initialization done.");  
  tmrpcm.play("tada.wav"); //the sound file "music" will play each time the arduino powers up, or is reset  
 }  
 void loop(){   
  //blink the LED manually to demonstrate music playback is independant of main loop  
  if(tmrpcm.isPlaying() && millis() - time > 50 ) {     
    digitalWrite(13,!digitalRead(13));  
    time = millis();    
  }else  
  if(millis() - time > 500){     
   digitalWrite(13,!digitalRead(13));   
   time = millis();   
  }  
  if(Serial.available()){    
   switch(Serial.read()){  
   case 'd': tmrpcm.play("taime.wav"); break;  
   case 'P': tmrpcm.play("tada.wav"); break;  
   case 't': tmrpcm.play("theme.wav"); break;  
   case 'p': tmrpcm.pause(); break;  
   case '?': if(tmrpcm.isPlaying()){ Serial.println("A wav file is being played");} break;  
   case 'S': tmrpcm.stopPlayback(); break;  
   case '=': tmrpcm.volume(1); break;  
   case '-': tmrpcm.volume(0); break;  
   case '0': tmrpcm.quality(0); break;  
   case '1': tmrpcm.quality(1); break;  
   default: break;  
   }  
  }  
 }