let ellipseXPos=100;

​

function setup() {

  createCanvas(640, 480);

  textSize(18);

}

​

function draw() {

  // one value from Arduino controls the background's red color

  background(104, 255, 255);

  map(ellipseXPos,0,1023,0,width);

  ellipse(ellipseXPos,height/2,100,50);

​

  // the other value controls the text's transparency value

​

  if (!serialActive) {

    text("Press Space Bar to select Serial Port", 20, 30);

  } else {

    text("Connected", 20, 30);

  }

​

  // click on one side of the screen, one LED will light up

  // click on the other side, the other LED will light up

}

​

function keyPressed() {

  if (key == " ") {

    // important to have in order to start the serial connection!!

    setUpSerial();

  }

}

​

function readSerial(data) {

  ////////////////////////////////////

  //READ FROM ARDUINO HERE

  ////////////////////////////////////

​

  if (data != null) {

    ellipseXPos=data;

    }

​

}

​

//Arudino Code

/*

void setup() {

  Serial.begin(9600);

}

​

void loop() {

  // wait for data from p5 before doing something

      int sensor = analogRead(A0);

      delay(1);

      Serial.println(sensor);

}

*/

​