let portName = "COM7"; // fill in your serial port name here

let xPos=0;

let yPos=0;

let onOff=0;

​

function setup() {

  createCanvas(640, 480);

  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(255);

  ellipse(xPos, yPos, 50, 50); // draw the circle

  if (mouseIsPressed){

    if(mouseX<=width/2)

      onOff=1;

    else

      onOff=2;

  }else{

    onOff=0;

  }

}

​

// get the list of ports:

function printList(portList) {

  // portList is an array of serial port names

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

    // Display the list the console:

    print(i + " " + portList[i]);

  }

}

​

function serverConnected() {

  print("connected to server.");

}

​

function portOpen() {

  print("the serial port opened.");

}

​

function serialEvent() {

  // read a string from the serial port

  // until you get carriage return and newline:

  let inString = serial.readLine();

  print(inString);

  // //check to see that there's actually a string there:

  // if (inString.length > 0) {

  //   let sensors = split(inString, ","); // split the string on the commas

  //   if (sensors.length == 2) {

  //     // if there are three elements

  //     xPos = map(sensors[0], 0, 1023, 0, width); // element 0 is the locH

  //     yPos = map(sensors[1], 550, 250, 0, height); // element 1 is the locV

  //   }

  // }

​

  // serial.write(onOff);

}

​

function serialError(err) {

  print("Something went wrong with the serial port. " + err);

}

​

function portClose() {

  print("The serial port closed.");

}

​

/* ARDUINO CODE

​

void setup() {

  Serial.begin(9600);

  pinMode(2, OUTPUT);

  pinMode(5, OUTPUT);

  while (Serial.available() <= 0) {

    Serial.println("0,0"); // send a starting message

    delay(300);              // wait 1/3 second

  }

}

void loop() {

  while (Serial.available() > 0) {

    // read the incoming byte:

   int inByte = Serial.read();

    switch (inByte) {

      case 0:

        digitalWrite(2, LOW);

        digitalWrite(5, LOW);

        break;

      case 1:

        digitalWrite(2, HIGH);

        break;

      case 2:

        digitalWrite(5, HIGH);

        break;

    }

    int sensorValue = analogRead(A0);

    Serial.print(sensorValue);

    Serial.print(",");

    sensorValue = analogRead(A1);

    Serial.print(sensorValue);

    Serial.println();

  }

}

​

*/

​