abbozzo

import processing.serial.*;

Serial port;
int val;           // Ovviamente fa un po' cacare, ma funziona

int x=100, y=100;

void setup()
{
  size(200, 200);

  println(Serial.list());
  println("totale porte " + Serial.list().length);

  String portName = Serial.list()[findport(0)];
  port = new Serial(this, portName, 9600);
  port.write('@');
  port.clear();
}

void draw()
{
  if ( port.available() > 0) {  // If data is available,
    val = port.read();         // read it and store it in val
  }
  background(255);
  if (val == 42) {  // 42 -> *
    fill(0);
  }
  else {
    fill(204);
  }
  rect(180, 10, 10, 10);
  fill(200);
  ellipse(x, y, 20, 20);
}

void keyPressed() {
  if (key=='a') x=x+2;
  if (key=='s') x=x-2;
  if (key=='z') y=y+2;
  if (key=='x') y=y-2;
  if (key=='l') System.exit(0);
}



int findport(int a) {
  Serial porttemp;
  int nport=-1;
  for (int i = a; i < Serial.list().length; i++) {

    println("Ciclo " + i +" "+  Serial.list()[i]);

    try {
      porttemp = new Serial (this, Serial.list()[i], 9600);
    }
    catch(Exception e ) {
      return findport(i+1);
    }

    porttemp.clear();
    delay(50); // giusto il tempo per aprire la porta, altirmenti trova -1

    if (porttemp.read() == 35) { // 35 -> #
      nport=i;
      println("Arduino trovato sulla porta " + nport + " in " + millis() + "ms");
      i=Serial.list().length;
    }

    porttemp.clear();
    porttemp.stop();
    porttemp = null;
  }
  if(nport==-1){
    System.err.println("\n\tNessun Ardunino trovato");
    System.exit(0);
  }
  return nport;
}



//Simple wire code for Arduino

/*
void setup() {
  Serial.begin(9600);  // Start serial communication at 9600 bps
  while(Serial.read()!=64){
    Serial.write("#");
  }
  Serial.write("\n\n Online..");
}

void loop() {
  Serial.write('*');
}
 */