diff --git a/MQTT_start/MQTT_start.ino b/MQTT_start/MQTT_start.ino
index 95c2b6e..96ebb2f 100644
--- a/MQTT_start/MQTT_start.ino
+++ b/MQTT_start/MQTT_start.ino
@@ -1,9 +1,80 @@
-void setup() {
-  // put your setup code here, to run once:
+#include <WiFi.h>
+#include <PubSubClient.h>
+
+const char *ssid = "maracumango";
+const char *password = "12345678";
+const char *mqtt_server = "192.168.199.158";
+const int mqtt_port = 1883;
+const char *mqtt_client_id = "ESP32_Client";
+const char *subscribe_topic = "tesis/potenciaNominal";
+const char *publish_topic = "tesis/potencia";
+
+WiFiClient espClient;
+PubSubClient client(espClient);
 
+void setup_wifi() {
+  delay(10);
+  Serial.println();
+  Serial.print("Conectando a ");
+  Serial.println(ssid);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println("");
+  Serial.println("Conectado a la red WiFi");
+  Serial.println("Dirección IP: ");
+  Serial.println(WiFi.localIP());
 }
 
-void loop() {
-  // put your main code here, to run repeatedly:
+void callback(char *topic, byte *payload, unsigned int length) {
+  Serial.print("Mensaje recibido en el tópico: ");
+  Serial.println(topic);
+  // Convierte el payload a una cadena de caracteres
+  char receivedValue[length + 1];
+  strncpy(receivedValue, (char *)payload, length);
+  receivedValue[length] = '\0';
+  // Convierte la cadena a un número (en este caso, asume que es un float)
+  float potenciaNominal = atof(receivedValue);
+  // Realiza cálculos basados en la potencia nominal recibida (sustituye con tu lógica)
+  float voltajeCalculado = potenciaNominal * 1.2;
+  // Publica el resultado en el tópico de voltaje
+  char result[10];
+  snprintf(result, sizeof(result), "%.2f", voltajeCalculado);
+  client.publish(publish_topic, result);
+}
+
+void reconnect() {
+  while (!client.connected()) {
+    Serial.print("Intentando conexión MQTT...");
 
+    if (client.connect(mqtt_client_id)) {
+      Serial.println("Conectado al servidor MQTT");
+      client.subscribe(subscribe_topic);
+    } else {
+      Serial.print("Falló, rc=");
+      Serial.print(client.state());
+      Serial.println(" Intentando de nuevo en 5 segundos");
+      delay(5000);
+    }
+  }
+}
+
+void setup() {
+  Serial.begin(115200);
+  setup_wifi();
+  client.setServer(mqtt_server, mqtt_port);
+  client.setCallback(callback);
+}
+
+void loop() {
+  if (!client.connected()) {
+    reconnect();
+  }
+  client.loop();
+  char str[16];
+  sprintf(str, "%u", random(100));
+  client.publish(publish_topic, str);
+  delay(500);
 }