Lenzi_wall_processing_vis

//MIT Mobile Experience Lab
//ReActive Innovation for Artisans project - Vibration sensor wall prototype
//June 2015
//Data visualization in Processing


import processing.serial.*;

Serial myPort;  // Create object from Serial class
PImage bg;
int[] serialInArray = new int[8]; // received data in bytes
int serialCount = 0;     // count of bytes received

int[] data = new int[4]; //data values

boolean firstContact = false; //received?

void setup() {
  size(544, 770);
  // The background image must be the same size as the parameters
  // into the size() method. In this program, the size of the image
  // is 640 x 360 pixels.
  colorMode(HSB, 360);
  bg = loadImage("meshbackground.png");
  // Print a list of the serial ports
  println(Serial.list());
  String portName = Serial.list()[1]; //change the 0 to a 1 or 2 etc. to match your port
  myPort = new Serial(this, portName, 9600); 
}

void draw() {
  background(bg);
  //A0
  fill(data[3]*4,360,360);
  ellipse(122,149,data[3],data[3]);
  
  //A1
  fill(data[0]*4,360,360);
  ellipse(393,149,data[0],data[0]);
  
  //A2
  fill(data[2]*4,360,360);
  ellipse(171,455,data[2],data[2]);
  
  //A3
  fill(data[1]*4,360,360);
  ellipse(467,457,data[1],data[1]);
  
  
}

void serialEvent(Serial myPort) {
  //read a byte from the serial port
  int inByte = myPort.read();
  
  if (firstContact == false) {
  if (inByte == 'A') {
    myPort.clear(); //clear serial buffer
    firstContact = true; //receiving A means contact made
    myPort.write('A'); //handshake
  }
  }
  else {
   // read latest byte
   serialInArray[serialCount] = inByte;
   serialCount++;
   //8 bytes are being received
   if (serialCount > 7) {
     println("new vals");
     for (int i = 0; i < 4;i++){
     data[i] = serialInArray[i];
     //print data
     println(serialInArray[i]);
     }
     
     //sending "A" requests new sensor readings
     myPort.write('A');
     //reset serialCount
     serialCount= 0;
   }
  }
}