ForoElectro.Net

Código: Seleccionar todo

#include <ESP8266WiFi.h>
#include <PubSubClient.h>

// Update these:
const char* ApiKey = "ApiKey de https://www.foroelectro.net/arduino/es/mqtt-doc";
const char* email = "email corresponding to previous ApiKey";
const char* ssid = "SSID WIFI";
const char* password = "PASSWORD WIFI";

// Other variables
const char* mqtt_server = "foroelectro.net";
char topicOut[200];
char topicIn[200];

WiFiClient espClient;
PubSubClient client(espClient);
long lastMsg = 0;
char msg[50];
int value = 0;

void setup_wifi() {
  delay(10);
  // We start by connecting to a WiFi network
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  randomSeed(micros());
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void callback(char* topic, byte* payload, unsigned int length) {
  Serial.print("Message arrived [");
  Serial.print(topic);
  Serial.print("] ");
  for (int i = 0; i < length; i++) {
    Serial.print((char)payload[i]);
  }
  Serial.println();
}

void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Attempt to connect
    if (client.connect("arduinoClient", ApiKey, email)) {
      Serial.println("connected");
      client.publish(topicOut, "hello world - connected");
      client.subscribe(topicIn);
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}

void setup() {
  Serial.begin(115200);
  String stopicOut = ApiKey;
  stopicOut.concat("/topicOut");
  stopicOut.toCharArray(topicOut, 200);
  String stopicIn = ApiKey;
  stopicIn.concat("/topicIn");
  stopicIn.toCharArray(topicIn, 200);
  setup_wifi();
  client.setServer(mqtt_server, 1883);
  client.setCallback(callback);
}

void loop() {
  if (!client.connected()) {
    reconnect();
  }
  client.loop();
  long now = millis();
  if (now - lastMsg > 2000) {
    lastMsg = now;
    ++value;
    snprintf (msg, 50, "hello world %ld", value);
    Serial.print("Publish message: ");
    Serial.println(msg);
    client.publish(topicOut, msg);
  }
}

Código: Seleccionar todo

mosquitto_sub -i ID_CLIENTE_DESEADA -h foroelectro.net -u API_KEY -P EMAIL -t API_KEY/+

Código: Seleccionar todo

mosquitto_pub -i ID_CLIENTE_DESEADA -h foroelectro.net -u API_KEY -P EMAIL -t API_KEY/SUBTOPIC -m "MENSAJE A ENVIAR"