`I m attempting to send data from an ESP32 to a Flask application on my PC for real-time visualization. I ve followed tutorials and reviewed the codes, yet I m still encountering a connection refused error on the ESP32. I ve double-checked IP addresses and ports, and I m confident they match. Any insights into why this issue might be occurring?

app.py code

from flask import Flask, render_template, request, jsonify
import json

app = Flask(__name__, template_folder= template )

# Almacena los datos recibidos del ESP32
data = { gasto : [],  presion : [],  vibracion : []}


@app.route( / )
def index():
    return render_template( index.html )


@app.route( /data , methods=[ POST ])
def receive_data():
    try:
        content = request.get_json()

        gasto = content[ gasto ]
        presion = content[ presion ]
        vibracion = content[ vibracion ]

        data[ gasto ].append(gasto)
        data[ presion ].append(presion)
        data[ vibracion ].append(vibracion)

        print(f"Received data: gasto={gasto}, presion={presion}, vibracion={vibracion}")
        return jsonify({ success : True})
    except Exception as e:
        print(f"Error receiving data: {str(e)}")
        return jsonify({ success : False,  error : str(e)})


@app.route( /get_data )
def get_data():
    return jsonify(data)


if __name__ ==  __main__ :
    app.run(debug=True)

esp32 code

#include <WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>

const char* ssid = "ASUS_F4";       // Nombre de tu red Wi-Fi
const char* password = "banana_6424"; // Contraseña de tu red Wi-Fi
const char* serverAddress = "http://192.168.50.177:5000/data"; // Cambia la dirección IP con la de tu PC

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  Serial.println("Connected to WiFi");
}

void loop() {
  float gasto = 123.45; // Valor simulado de gasto
  float presion = 67.89; // Valor simulado de presión
  float vibracion = 0.12; // Valor simulado de vibración

  // Crea un objeto JSON
  DynamicJsonDocument jsonDoc(200);
  jsonDoc["gasto"] = gasto;
  jsonDoc["presion"] = presion;
  jsonDoc["vibracion"] = vibracion;

  // Serializa el JSON en una cadena
  String payload;
  serializeJson(jsonDoc, payload);

  // Crea una instancia de HTTPClient
  HTTPClient http;
 Serial.println("Server Address: " + String(serverAddress));
  // Envía la solicitud POST al servidor
  http.begin(serverAddress);
  http.addHeader("Content-Type", "application/json");
  int httpResponseCode = http.POST(payload);

  if (httpResponseCode > 0) {
    Serial.printf("HTTP Response code: %d
", httpResponseCode);
    String response = http.getString();
    Serial.println(response);
  } else {
    Serial.printf("HTTP Request failed: %s
", http.errorToString(httpResponseCode).c_str());
  }

  http.end();

  delay(5000); // Espera 5 segundos antes de enviar el siguiente dato
}

Thxs

Monitoring a system and display data on a website`