Recitation 10

import processing.serial.*;
import processing.video.*;
Capture cam;
int Size = 10;


Serial myPort;
int valueFromArduino;
int PORT_INDEX=5;


void setup() {
 size(640, 480);
  cam = new Capture (this, 640, 480);
  cam.start();

  printArray(Serial.list());
  // this prints out the list of all available serial ports on your computer.

  myPort = new Serial(this, Serial.list()[ PORT_INDEX ], 9600);
  // WARNING!
  // You will definitely get an error here.
  // Change the PORT_INDEX to 0 and try running it again.
  // And then, check the list of the ports,
  // find the port "/dev/cu.usbmodem----" or "/dev/tty.usbmodem----" 
  // and replace PORT_INDEX above with the index number of the port.
}


void draw() {
  if (cam.available()) {
    cam.read();
    cam.loadPixels();
  }
  while ( myPort.available() > 0) {
    valueFromArduino = myPort.read();
  }
  int a = int(map (valueFromArduino,200,1500,1,10));
  for (int y=0; y<cam.height; y+=a) {
    for (int x=0; x<cam.width; x+=a) {
      int i= y*cam.width+x;
      fill( cam.pixels[i] );
      noStroke();
      ellipse(x, y, a, a);
    }
  }
  //image(cam,0,0,width,height);
  cam.updatePixels();


  // to read the value from the Arduino
  

  println(valueFromArduino);//This prints out the values from Arduino
}

Recitation 10 a

// IMA NYU Shanghai
// Interaction Lab
// This code sends one value from Arduino to Processing


void setup() {
  Serial.begin(9600);
  pinMode(pin, INPUT);
}


void loop() {
  Serial.write(sensorValue);
  uint16_t sensorValue = analogRead (pin);
  double distance = get_IR (sensorValue); 
  Serial.println (sensorValue);               
  Serial.println (" cm");
  Serial.println ();
  delay (500);
  delay(10);
  double get_IR (uint16_t sensorValue) {
    if (sensorValue < 16)  sensorValue = 16;
    return 2076.0 / (sensorValue - 11.0);
  }