Eyes

# Python Code for Eye Detection and Light Control
import cv2
import mediapipe as mp
import serial
import time

# Initialize MediaPipe Face Mesh
mp_face_mesh = mp.solutions.face_mesh
face_mesh = mp_face_mesh.FaceMesh(min_detection_confidence=0.5, min_tracking_confidence=0.5)

# Initialize serial communication with Arduino
ser = serial.Serial('COM4', 9600)  # Replace 'COM4' with your Arduino port
time.sleep(2)

# Open webcam
cap = cv2.VideoCapture(0)

def calculate_eye_aspect_ratio(landmarks, eye_indices):
    # Calculate the eye aspect ratio to determine if eyes are closed
    left_point = landmarks[eye_indices[0]]
    right_point = landmarks[eye_indices[3]]
    top_point = landmarks[eye_indices[1]]
    bottom_point = landmarks[eye_indices[5]]
    
    # Horizontal distance (width)
    horizontal_length = ((right_point[0] - left_point[0]) ** 2 + (right_point[1] - left_point[1]) ** 2) ** 0.5
    # Vertical distance (height)
    vertical_length = ((bottom_point[0] - top_point[0]) ** 2 + (bottom_point[1] - top_point[1]) ** 2) ** 0.5

    return vertical_length / horizontal_length

while True:
    # Capture frame-by-frame
    success, image = cap.read()
    if not success:
        break

    # Convert the BGR image to RGB
    rgb_image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)

    # Process the image and find face mesh
    results = face_mesh.process(rgb_image)

    if results.multi_face_landmarks:
        for face_landmarks in results.multi_face_landmarks:
            landmarks = [(int(lm.x * image.shape[1]), int(lm.y * image.shape[0])) for lm in face_landmarks.landmark]

            # Indices for the right eye (can change to left eye if needed)
            right_eye_indices = [33, 160, 158, 133, 153, 144]

            # Calculate Eye Aspect Ratio (EAR) for the right eye
            ear = calculate_eye_aspect_ratio(landmarks, right_eye_indices)

            # Threshold to determine if the eye is closed
            if ear < 0.2:
                # Eyes closed, turn off the light
                ser.write(b'0\n')
                cv2.putText(image, "Eyes Closed - Light OFF", (50, 50), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 0, 255), 2)
            else:
                # Eyes open, turn on the light
                ser.write(b'1\n')
                cv2.putText(image, "Eyes Open - Light ON", (50, 50), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 0), 2)

    # Display the resulting frame
    cv2.imshow('Eye Control for Light', image)

    # Break the loop when 'q' key is pressed
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# Release the capture and close windows
cap.release()
cv2.destroyAllWindows()
ser.close()
    

/* Arduino Code for Light Control */
int ledPin = 13; // LED connected to digital pin 13

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600); // Start serial communication
}

void loop() {
  if (Serial.available() > 0) {
    char state = Serial.read(); // Read the incoming data
    if (state == '1') {
      digitalWrite(ledPin, HIGH); // Turn on the LED
    } else if (state == '0') {
      digitalWrite(ledPin, LOW); // Turn off the LED
    }
  }
}