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1 | void setup() { | |
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2 | // put your setup code here, to run once: | |
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1 | #include <WiFi.h> | |
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2 | #include <PubSubClient.h> | |
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3 | ||
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4 | const char *ssid = "maracumango"; | |
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5 | const char *password = "12345678"; | |
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6 | const char *mqtt_server = "192.168.199.158"; | |
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7 | const int mqtt_port = 1883; | |
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8 | const char *mqtt_client_id = "ESP32_Client"; | |
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9 | const char *subscribe_topic = "tesis/potenciaNominal"; | |
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10 | const char *publish_topic = "tesis/potencia"; | |
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11 | ||
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12 | WiFiClient espClient; | |
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13 | PubSubClient client(espClient); | |
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3 | 14 | |
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15 | void setup_wifi() { | |
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16 | delay(10); | |
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17 | Serial.println(); | |
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18 | Serial.print("Conectando a "); | |
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19 | Serial.println(ssid); | |
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20 | WiFi.begin(ssid, password); | |
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21 | while (WiFi.status() != WL_CONNECTED) { | |
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22 | delay(500); | |
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23 | Serial.print("."); | |
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24 | } | |
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25 | Serial.println(""); | |
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26 | Serial.println("Conectado a la red WiFi"); | |
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27 | Serial.println("Dirección IP: "); | |
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28 | Serial.println(WiFi.localIP()); | |
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4 | 29 | } |
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5 | 30 | |
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6 | void loop() { | |
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7 | // put your main code here, to run repeatedly: | |
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31 | void callback(char *topic, byte *payload, unsigned int length) { | |
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32 | Serial.print("Mensaje recibido en el tópico: "); | |
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33 | Serial.println(topic); | |
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34 | // Convierte el payload a una cadena de caracteres | |
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35 | char receivedValue[length + 1]; | |
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36 | strncpy(receivedValue, (char *)payload, length); | |
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37 | receivedValue[length] = '\0'; | |
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38 | // Convierte la cadena a un número (en este caso, asume que es un float) | |
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39 | float potenciaNominal = atof(receivedValue); | |
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40 | // Realiza cálculos basados en la potencia nominal recibida (sustituye con tu lógica) | |
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41 | float voltajeCalculado = potenciaNominal * 1.2; | |
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42 | // Publica el resultado en el tópico de voltaje | |
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43 | char result[10]; | |
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44 | snprintf(result, sizeof(result), "%.2f", voltajeCalculado); | |
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45 | client.publish(publish_topic, result); | |
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46 | } | |
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47 | ||
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48 | void reconnect() { | |
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49 | while (!client.connected()) { | |
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50 | Serial.print("Intentando conexión MQTT..."); | |
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8 | 51 | |
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52 | if (client.connect(mqtt_client_id)) { | |
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53 | Serial.println("Conectado al servidor MQTT"); | |
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54 | client.subscribe(subscribe_topic); | |
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55 | } else { | |
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56 | Serial.print("Falló, rc="); | |
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57 | Serial.print(client.state()); | |
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58 | Serial.println(" Intentando de nuevo en 5 segundos"); | |
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59 | delay(5000); | |
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60 | } | |
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61 | } | |
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62 | } | |
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63 | ||
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64 | void setup() { | |
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65 | Serial.begin(115200); | |
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66 | setup_wifi(); | |
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67 | client.setServer(mqtt_server, mqtt_port); | |
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68 | client.setCallback(callback); | |
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69 | } | |
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70 | ||
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71 | void loop() { | |
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72 | if (!client.connected()) { | |
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73 | reconnect(); | |
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74 | } | |
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75 | client.loop(); | |
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76 | char str[16]; | |
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77 | sprintf(str, "%u", random(100)); | |
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78 | client.publish(publish_topic, str); | |
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79 | delay(500); | |
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9 | 80 | } |
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