GhosTz

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• Connection to Homeassistant MQTT Broker refused

  @GhosTz started

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  @Gordon replied
• Connection to Homeassistant MQTT Broker refused

  in ESP32 • 5 months, 1 week

  

  I've setup an mosquitto mqtt broker on my homeassist. I now want to have my esp32 connect to it and afterwards control a lamp over BLE.

  I'm currently already stuck trying to connect to my homeassistant mqtt broker. I've validated the broker is working with mqtt.fx by subscribing to the same ip/topic with the same credentials. When I now try to subscribe to the same broker I always get the following error:

  Connection refused, unknown return code: NaN.
  

  This is how my code looks like:

  var wifi = require('Wifi');
  
  var ssid = 'ssidname';
  var password = 'mypassword';
  var port = 80;
  
  var mqttServer = "192.168.86.42";
  var mqttConfig = {
      client_id : getSerial(),
      username: "mqtt-user",
      password: "my-mqtt-password",
      keep_alive: 60,
      port: 1883,
  };
  
  var topic = "/lrcontroller/";
  var message = "hello, world";
  
  var mqtt = require("MQTT").create(mqttServer, mqttConfig /*optional*/);
  
  function mqttConnect() {
  
    console.log("connecting mqtt");
  
    mqtt.on('error', (error) => {
      console.log("mqtt error: "+error);
    });
  
    mqtt.on('connected', function() {
      console.log("MQTT connected");
      setTimeout(function() {
        mqtt.subscribe(topic+"#");
      }, 1000);
    });
  
    mqtt.on('disconnected', function() {
      console.log("MQTT disconnected... reconnecting.");
      setTimeout(function() {
        mqtt.connect();
      }, 1000);
    });
  
    mqtt.on('publish', function (pub) {
      console.log("topic: "+pub.topic);
      console.log("message: "+pub.message);
    });
  
    mqtt.connect();
  
  }
  
  wifi.connect(ssid, {password: password}, function(error) {
    if(error){
      console.log("wifi errors: "+error);
    }
  });
  
  wifi.on('connected', (info) => {
    console.log("wifi connected to " + info.gw + " with the ip: " + info.ip + "! ");
    mqttConnect();
  });
  
  wifi.on('disconnected', (error) => {
    console.log("wifi disconnected!");
    setTimeout(() => {
      console.log("wifi reconnecting ...");
      wifi.connect(ssid, {password: password}, function(error) {
        if(error){
          console.log("wifi errors: "+error);
        }
      });
    }, 1000);
  });
  

  I am wondering if I am missing something here?

  Also when I flash to my esp32 with the Espruino IDE, the console logs are not shown because wifi seems to still be connected after te restart. So to validate my code I always call wifi.disconnect();.

  Would really appreciate any help!