let mass = 50;

let connectButton;

​

function setup() {

  createCanvas(640, 360);

  noFill();

​

  // Initialize position of the ellipse

  position = createVector(width / 2, height / 2);

​

  // Create a button for serial connection

  connectButton = createButton('Connect to Serial');

  connectButton.position(10, 10);

  connectButton.mousePressed(setUpSerial); // Trigger serial setup on button press

}

​

function draw() {

  background(255);

​

  // Map potentiometer value to horizontal position

  position.x = map(potValue, 0, 1023, 0, width);

​

  // Keep the ellipse in the middle of the canvas vertically

  ellipse(position.x, height / 2, mass, mass);

  fill(255);

}

​