arduino vers processing "serial " "minim" "library"

Voici un petit programme pour déclencher un son en Fonction d'une valeur généré par ARDUINO.
Pour une explication voir le lien YOUTUBE ICI (en cours).

Le programme à mettre dans l'arduino:
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// Sweep

// by BARRAGAN

#include

Servo myservo; // create servo object to control a servo

// a maximum of eight servo objects can be created

int pos = 0; // variable to store the servo position

int analogInput = 3;

int led = 13;

int analogValue = 0;

void setup()

{

myservo.attach(9); // attaches the servo on pin 9 to the servo object

pinMode(led, OUTPUT);

pinMode(analogInput, INPUT);

Serial.begin(9600);

}

void loop()

{

// pour voir si le montage fonctionne

for(pos = 0; pos <>

{ // in steps of 1 degree

myservo.write(pos); // tell servo to go to position in variable 'pos'

delay(15); // waits 15ms for the servo to reach the position

if (pos <>

Serial.println(pos); //variable pos = 0 - 180 ne pas utiliser print mais println

Serial.print("\t");

delay(100);

}

for(pos = 180; pos>=1; pos-=1) // goes from 180 degrees to 0 degrees

{

myservo.write(pos); // tell servo to go to position in variable 'pos'

delay(15); // waits 15ms for the servo to reach the position

if (pos <>

Serial.println(pos); //variable pos = 0 - 180

Serial.print("\t");

delay(100);

}

}

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et le programme à mettre dans processing:


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// reception de valeur par le port serie arduino 0 à 1023

// processing divise par 4 pour conversion en couleur donc valeur de 0 à 101

// test de la valeur si inferieure à 61 lecture du son

// au dessus pas de son

import processing.serial.*;

Serial port;

String buff1 = "";

String buff2 = "";

int NEWLINE = 10;

int oldval=0;

int farve=255;

int mode=0;

int val=0;

// Store the last 64 values received so we can graph them.

int[] values = new int[64];

// declaration du lecteur

import ddf.minim.*;

Minim minim;

AudioPlayer player;

void setup()

{

size(512, 512);

strokeWeight(3);

println("Available serial ports:");

println(Serial.list());

// Uses the first port in this list (number 0). Change this to

// select the port corresponding to your Arduino board. The last

// parameter (e.g. 9600) is the speed of the communication. It

// has to correspond to the value passed to Serial.begin() in your

// Arduino sketch.

port = new Serial(this, Serial.list()[1], 9600);

// If you know the name of the port used by the Arduino board, you

// can specify it directly like this.

//port = new Serial(this, "COM1", 9600);

// chargement de la musique dansla buffer

minim = new Minim(this);

player = minim.loadFile("Singapore.mp3", 2048);

// test de lecture au demarrage

// player.play();

}

void draw()

{

//change la couleur du fond en fonction de la valeur

background(oldval);

stroke(farve);

// Graph the stored values by drawing a lines between them.

for (int i = 0; i <>

line(i * 8, height - values[i]/100, (i + 1) * 8, height - values[i +1]/100);

// affiche la valeur reçu dans la Zone ecran

text("received: " + oldval, 10,50);

while (port.available() > 0)

serialEvent(port.read());

println(oldval);

int oldval2=constrain(oldval,0,500);

farve=(int)map(oldval2, 0,500,0,255);

//test de la valeur si inferieure à 61 pour lancer le lecteur

// possible de changer la valeur pour une autre 0, 10,90,180,...

if ( oldval < (90)) {

player.play() ;

println (" valeur inferieure à 90") ;

}

// si la valeur n'est pas inferieure stop le son

else{player.pause();

}

}

void serialEvent(int serial)

{

//

if (serial != NEWLINE) {

if(serial!= TAB){

buff1 += char(serial);

}

// Store all the characters on the line.

} else {

// The end of each line is marked by two characters, a carriage

// return and a newline. We're here because we've gotten a newline,

// but we still need to strip off the carriage return.

buff1 = buff1.substring(0, buff1.length()-1);

// Parse the String into an integer. We divide by 4 because

// analog inputs go from 0 to 1023 while colors in Processing

// only go from 0 to 255.

val = (Integer.parseInt(buff1)+oldval)/2;

//println("test");

// Clear the value of "buff"

buff1 = "";

// Shift over the existing values to make room for the new one.

for (int i = 0; i <>

values[i] = values[i + 1];

// Add the received value to the array.

values[63] = val;

oldval=val;

mode=0;

}

}

void stop()

{

// always close Minim audio classes when you are done with them

player.close();

minim.stop();

super.stop();}

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