serialintegersend.py

import cv2
import mediapipe as mp
import time
import math
import serial

# Open serial connection to Arduino
ser = serial.Serial("COM3", 9600)  # Replace 'COMX' with the appropriate port

cap = cv2.VideoCapture(0)
mpHands = mp.solutions.hands
hands = mpHands.Hands()
mpDraw = mp.solutions.drawing_utils

currenttime = 0
prevtime = 0
while True:
    success, img = cap.read()
    imgRGB = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
    results = hands.process(imgRGB)
    if results.multi_hand_landmarks:
        for handLms in results.multi_hand_landmarks:
            for id, lm in enumerate(handLms.landmark):
                h, w, c = img.shape

                if id == 8:
                    x1, y1 = int(lm.x * w), int(lm.y * h)
                    cv2.circle(img, (x1, y1), 1, (255, 255, 0), cv2.FILLED)
                if id == 0:
                    x2, y2 = int(lm.x * w), int(lm.y * h)
                    cv2.circle(img, (x2, y2), 1, (255, 255, 0), cv2.FILLED)

            cv2.line(img, (x1, y1), (x2, y2), (0, 255, 0), 1)
            length = math.hypot(x2 - x1, y2 - y1)
            cv2.putText(img, str(int(length)), (500, 70), cv2.FONT_HERSHEY_PLAIN, 3, (255, 0, 0), 2)
            # Convert the integer 'length' to bytes and send it with a newline character
            ser.write(str(int(length)).encode() + b'\n')

        mpDraw.draw_landmarks(img, handLms, mpHands.HAND_CONNECTIONS)

    currenttime = time.time()
    fps = 1 / (currenttime - prevtime)
    prevtime = currenttime
    cv2.putText(img, str(int(fps)), (10, 70), cv2.FONT_HERSHEY_PLAIN, 3, (255, 0, 255), 2)
    cv2.imshow("image ", img)
    if cv2.waitKey(10) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()