let lightValue = 0; // Initial value from Arduino's photocell sensor

​

​

function setup() {

  createCanvas(640, 480);

  textSize(18);

  setUpSerial(); 

}

​

function draw() {

  background(220);

​

  // Display plant

  fill(34, 139, 34); // Green color for the plant

  rect(width / 2 - 10, height - plantHeight, 20, plantHeight);

​

  // Display light value

  fill(0);

  text('Light Value: ' + lightValue, 20, 60);

​

  if (!serialActive) {

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

  } else {

    text("Connected", 20, 30);

  }

​

  // Adjust plant height based on light value

  if (lightValue > 50) {

    let growthRate = map(lightValue, 50, 1023, 0, 5); // Adjust the growth rate as needed

    plantHeight += growthRate;

​

    // Constrain plant height to prevent it from growing indefinitely

    plantHeight = constrain(plantHeight, 10, height - 30);

  }

}

​

function keyPressed() {

  if (key == " ") {

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

    setUpSerial();

  }

}

​

// This function will be called by the web-serial library

function readSerial(data) {

  if (data != null) {

    // Parse the incoming data from Arduino

    let sensorValues = split(trim(data), ",");

    if (sensorValues.length == 2) {

      // Update the light value

      lightValue = int(sensorValues[0]);

    }

  }

}

​

​

​

​