***Hand_gesture_control_LED_and_Prothetic_hand_code_Arduino+VS_code***

//VS OpenCv

// Hand_gesture_Prothectic_hand

import cv2

import mediapipe as mp

import serial

import time

# Initialize serial communication with Arduino

arduino = serial.Serial(port='COM4', baudrate=9600, timeout=1)

time.sleep(2)  # Wait for the serial connection to initialize

# Initialize Mediapipe

mp_hands = mp.solutions.hands

hands = mp_hands.Hands()

mp_drawing = mp.solutions.drawing_utils

# Function to detect individual fingers (1 for up, 0 for down)

def detect_fingers(image, hand_landmarks):

    finger_tips = [8, 12, 16, 20]  # Index, Middle, Ring, Pinky

    thumb_tip = 4

    finger_states = [0, 0, 0, 0, 0]  # Thumb, Index, Middle, Ring, Pinky

    # Check thumb

    if hand_landmarks.landmark[thumb_tip].x < hand_landmarks.landmark[thumb_tip - 1].x:

        finger_states[0] = 1  # Thumb is up

    # Check the other fingers

    for idx, tip in enumerate(finger_tips):

        if hand_landmarks.landmark[tip].y < hand_landmarks.landmark[tip - 2].y:

            finger_states[idx + 1] = 1  # Other fingers are up

    return finger_states

# Start capturing video

cap = cv2.VideoCapture(0)

while cap.isOpened():

    success, image = cap.read()

    if not success:

        break

    image = cv2.cvtColor(cv2.flip(image, 1), cv2.COLOR_BGR2RGB)

    results = hands.process(image)

    image = cv2.cvtColor(image, cv2.COLOR_RGB2BGR)

    if results.multi_hand_landmarks:

        for hand_landmarks in results.multi_hand_landmarks:

            mp_drawing.draw_landmarks(image, hand_landmarks, mp_hands.HAND_CONNECTIONS)

            fingers_state = detect_fingers(image, hand_landmarks)

            arduino.write(bytes(fingers_state))  # Send list of fingers as bytes

            print(f"Fingers State: {fingers_state}")

    cv2.imshow('Hand Tracking', image)

    if cv2.waitKey(5) & 0xFF == 27:

        break

cap.release()

cv2.destroyAllWindows()

arduino.close()

// Five LED control code, Here you can edit code for Servo hand gesture

//  https://youtu.be/DWg5l7zZXYU?si=7ze01J8l5ABSEhSA

int ledPins[] = {8, 9, 10, 11, 12};  // Thumb, Index, Middle, Ring, Pinky

void setup() {

  Serial.begin(9600);

  for (int i = 0; i < 5; i++) {

    pinMode(ledPins[i], OUTPUT);

  }

}

void loop() {

  if (Serial.available() >= 5) {  // Expect 5 bytes for 5 fingers

    for (int i = 0; i < 5; i++) {

      int fingerState = Serial.read();  // Read each finger state (0 or 1)

      digitalWrite(ledPins[i], fingerState == 1 ? HIGH : LOW);  // Turn LED on/off

    }

  }

}