var portName = "Jeff";

​

function setup() {

  serial = new p5.SerialPort();

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

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

  createCanvas(400, 400);

}

​

function draw() {

  background(0, 0, 120);

}

​

// get the list of ports:

function printList(portList) {

  // portList is an array of serial port names

  for (var i = 0; i < portList.length; i++) {

    // Display the list the console:

    if (portList[i].indexOf('usbmodem') != -1) {

      portName = portList[i];

      console.log("Using " + portName + " for serial");

      serial.open(portName);

    }

    console.log(i + " " + portList[i]);

  }

}

​

function serialEvent() {

  console.log(serial.read());

  // var ln = serial.readLine();

  // if (ln.length > 0 ) {

  //    console.log(ln);

  // } else {

  //   //console.log(".");

  // }

}

​

​