Lab4_P5Side

/*
This P5 sketch is a template for getting started with Serial Communication. 
The SerialEvent callback is where incoming data is received 


By Arielle Hein, adapted from ITP Phys Comp Serial Labs
Edited March 13 2018

*/

var sensor1;
var sensor2;

var serial; //variable to hold an instance of the serial port library
var portName = '/dev/cu.usbserial-DN03ZQTJ'; //fill in with YOUR port

function setup() {
  createCanvas(400, 400);

  serial = new p5.SerialPort(); //a new instance of serial port library

  //set up events for serial communication
  serial.on('connected', serverConnected);
  serial.on('open', portOpen);
  serial.on('data', serialEvent);
  serial.on('error', serialError);
  serial.on('close', portClose);

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

  //let's figure out what port we're on - useful for determining your port
  // serial.on('list', printList); //set a callback function for the serialport list event
  // serial.list(); //list the serial ports
  background('violet'); //background in setup to allow for drawing
}

function draw() {

  fill(255,255,255); //ellipse color
  noStroke();
  ellipse(sensor1,sensor2, 20, 20);
}

//all my callback functions are down here:
//these are useful for giving feedback

function serverConnected(){
	console.log('connected to the server');
}

function portOpen(){
  console.log('the serial port opened!');
}

//THIS IS WHERE WE RECEIVE DATA!!!!!!
//make sure you're reading data based on how you're sending from arduino
function serialEvent(){
  //receive serial data here
  var inString = serial.readLine();
  
  if(inString.length > 0){
  	var splitString = split(inString, ',');
    
    sensor1 = Number(splitString[0]);
    sensor2 = Number(splitString[1]);
    }
}

function serialError(err){
  console.log('something went wrong with the port. ' + err);
}

function portClose(){
  console.log('the port was closed');
}

// 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:
 print(i + " " + portList[i]);
 }
}