#include <WiFi.h>
#include <PubSubClient.h>

// Replace with your network credentials
const char* ssid = "iPhone Ernesto (2)"; //ssid network
const char* password = "****"; //Password to ssid network


const char* mqtt_server = "broker.hivemq.com"; // Address MQTT server

WiFiClient espClient; // Client WiFi to connect MQTT server
PubSubClient client(espClient); // Client MQTT that uses client WiFi


void setup() {
  Serial.begin(115200); / Inicializa la comunicación serial a 115200 baudios
  delay(10);

  // Connect to Wi-Fi
  WiFi.begin(ssid, password); // Start connection to wifi red
  while (WiFi.status() != WL_CONNECTED) { / Wait until the connection is successful
    delay(500);
    Serial.print("."); // Print a dot every 500 ms while connecting
  }
  Serial.println("WiFi connected"); // Print a message when the Wi-Fi connection is successful

  // Connect to MQTT Broker
  client.setServer(mqtt_server, 1883); // Set the MQTT client to connect to the server at port 1883
  
  while (!client.connected()) { // Try to connect to the MQTT broker until successful
    Serial.print("Attempting MQTT connection...");
    if (client.connect("ESP32S3Client")) { // Try to connect with the ID "ESP32S3Client"
      Serial.println("connected"); // Print a message when the MQTT connection is successful
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state()); // Print the MQTT client state if the connection fails
      Serial.println(" try again in 5 seconds"); // Wait 5 seconds before trying to reconnect
      delay(5000);
    }
  }
}

void loop() {
  // Send a test message
  client.loop();
  client.publish("arduino/uno", "Hello from Arduino Uno WiFi"); // Publish a message to the topic "arduino/uno"
  delay(5000);  // Wait 5 seconds before sending the next message
}