let portName = "/dev/tty.usbmodem2101"; // Update this to match your Arduino's port

let rectangleColor;

let rectangleSize = 100;

const targetUID = "46CFF3B";

​

let openEyeImg, closedEyeImg;

let lastBlinkTime = 0;

const blinkInterval = 2000; // 2 seconds

const blinkDuration = 400; // 0.4 seconds

​

function preload() {

  openEyeImg = loadImage("open.png");

  closedEyeImg = loadImage("closed.png");

}

​

function setup() {

  createCanvas(480, 600);

  textAlign(CENTER, CENTER);

  textSize(16);

​

  rectangleColor = color(0, 0, 0, 0); // Start with transparent color

​

  serial = new p5.SerialPort();

  serial.on("list", gotList);

  serial.on("connected", serverConnected);

  serial.on("open", portOpen);

  serial.on("data", serialEvent);

  serial.on("error", serialError);

  serial.on("close", portClose);

​

  serial.list();

  serial.open(portName);

}

​

function draw() {

  clear();

  blinkImage();

​

  // Draw the rectangle

  strokeWeight(5);

  fill("white");

  rect(30, 470, rectangleSize, rectangleSize);

​

  // Add text instructions

  fill(0);

  text(

    "RFID Tag: " + (rectangleColor.levels[0] > 0 ? "Detected" : "Not Detected"),

    width / 2,

    height - 40

  );

  text(

    "FSR: " + (rectangleSize > 100 ? "Pressed" : "Released"),

    width / 2,

    height - 20

  );

}

​

function blinkImage() {

  // Draw the fitted eye image

  let currentTime = millis();

  let eyeImg;

​

  if (

    currentTime - lastBlinkTime > blinkInterval &&

    currentTime - lastBlinkTime <= blinkInterval + blinkDuration

  ) {

    eyeImg = closedEyeImg;

  } else {

    eyeImg = openEyeImg;

  }

​

  let scale = min(width / eyeImg.width, height / eyeImg.height);

  image(

    eyeImg,

    (width - eyeImg.width * scale) / 2,

    (height - eyeImg.height * scale) / 2,

    eyeImg.width * scale,

    eyeImg.height * scale

  );

​

  if (currentTime - lastBlinkTime > blinkInterval + blinkDuration) {

    lastBlinkTime = currentTime;

  }

}

​

function serialEvent() {

  let inString = serial.readStringUntil("\r\n").trim();

  console.log("Received:", inString);

​

  if (inString.startsWith("RFID")) {

    let parts = inString.split(":");

    let reader = parts[0].substring(4); // Extract reader name

    let uid = parts[1];

    console.log("RFID tag detected on " + reader + " with UID: " + uid);

​

    // Check if the detected UID matches the target UID

    if (uid === targetUID) {

      rectangleColor = color(255, 0, 0); // Red

    } else {

      rectangleColor = color(0, 0, 0, 0); // Transparent

    }

  } else if (inString.startsWith("FSR")) {

    let state = inString.split(":")[1];

    if (state === "PRESSED") {

      console.log("FSR Pressed");

      rectangleSize = 200; // Make the rectangle bigger

    } else if (state === "RELEASED") {

      console.log("FSR Released");

      rectangleSize = 100; // Make the rectangle smaller

    }

  }

}

​

function gotList(thelist) {

  console.log("Available serial ports:");

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

    console.log(i + ": " + thelist[i]);

  }

}

​

function serverConnected() {

  console.log("Connected to Server");

}

​

function portOpen() {

  console.log("Serial Port Opened");

}

​

function serialError(err) {

  console.log("Serial Port Error: " + err);

}

​

function portClose() {

  console.log("Serial Port Closed");

}

​