Serial Communication

Using Arduino Programming Questions
1

I have the python programme below. The program below aims to detect a red ball and display the x and y position values. My question is when the data is sent to Arduino via serial how do I separate the x and y data, I want the x data to enter the x variable and the y data to enter the y variable. Thank you very much.

import cv2
import numpy as np
import serial
import time

ser = serial.Serial(port='COM8', baudrate=115200, timeout=.1)

cam = cv2.VideoCapture(0)

while(1):
    _, frame = cam.read()
    
    hsvFrame = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)

    redLower = np.array([136, 87, 111], np.uint8)
    redUpper = np.array([180, 255, 255], np.uint8)
    redMask = cv2.inRange(hsvFrame, redLower, redUpper)

    kernel = np.ones((5, 5), "uint8")

    redMask = cv2.dilate(redMask, kernel)
    resRed = cv2.bitwise_and(frame, frame, mask = redMask)

    contours, hierarchy = cv2.findContours(redMask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

    for pic, contour in enumerate(contours):
        area = cv2.contourArea(contour)
        if(area > 300):
            x, y, w, h = cv2.boundingRect(contour)
            frame = cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 0, 255), 2)
            cv2.putText(frame, "Merah", (x, y), cv2.FONT_HERSHEY_SIMPLEX, 1.0, (0, 0, 255))
            ser.write(f"{x},{y}".encode('utf-8'))
            response = ser.readline().decode('utf-8').strip()
            print("Arduino Response:", response)

    cv2.imshow("Deteksi Warna", frame)
    if cv2.waitKey(10) & 0xFF == ord('q'):
        cam.release()
        cv2.destroyAllWindows()
        break
2

I would separate then with a "comma".

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