var portName = '/dev/tty.usbmodem14601'; // fill in your serial port name here

var cSize = 10; // size of the circle

​

function setup() {

  createCanvas(800, 600);

  serial = new p5.SerialPort(); // make a new instance of the serialport library

  serial.on('list', printList); // set a callback function for the serialport list event

  serial.on('connected', serverConnected); // callback for connecting to the server

  serial.on('open', portOpen); // callback for the port opening

  serial.on('data', serialEvent); // callback for when new data arrives

  serial.on('error', serialError); // callback for errors

  serial.on('close', portClose); // callback for the port closing

​

  //serial.list(); // list the serial ports

  serial.open(portName); // open a serial port

}

​

​

function draw() {

  background("#2277A3");            // set the background color

  fill("#55CAFE");                      // set the circle fill color

  noStroke();                                   // don't use a stroke around the circle

  // draw the circle:

  ellipse(width/2, height/2, cSize, cSize);

}

​

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function serialEvent() {

  var data = serial.read();

  // if (data.length > 0) {

  //  // console.log(data);

  //   var sensors = split(data, ",");

  //   console.log(sensors);

  //   xPos = int(sensors[0]);

  //   yPos = int(sensors[1]);

    cSize = int(data);

}

​

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