var portName = '/dev/cu.usbmodem1421';

var inData = 0;

let inDataMap;

let currentgrowEllipse = 0.0;

let lastgrowEllipse = 0.0;

​

function setup() {

  createCanvas(300,300);

  serial = new p5.SerialPort();

  // serial.readLine();

  //split

  //var currentString = serial.readLine();

  // var arrayOfValue = split(currentString, ", ");

  // "103","105","200" = [103,105,200]

  serial.on('data', serialEvent);

  serial.open(portName); 

  var options = { baudrate: 57600}; // change the data rate to whatever you wish

    serial.open(portName, options);

  smooth();

}

​

​

function serialEvent() {

  inData = Number(serial.read());

  print("MPH: " + inData);

  rectMode(CENTER);

}

​

function draw() {

  background(0,10);

  fill(255);

  text("MPH: " + inData, 30,30);

  let currentgrowEllipse = map(inData, 0, 255, 20, windowWidth);

  let lerpEllipse = lerp(currentgrowEllipse, lastgrowEllipse, 0.2);

      ellipse(width/2, height/2, lerpEllipse*0.8 + 50);

​

  lastgrowEllipse = currentgrowEllipse;

}

​

​