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How can I connect to my MQTT server in my HTML5 app.
src="js/mqttws31.js" type="text/javascript"> src="js/host.js" type="text/javascript"> var mqtt; var reconnectTimeout = 2000; function MQTTconnect() { mqtt = new Paho.MQTT.Client( host, port, "web_" + parseInt(Math.random() * 100, 10)); var options = { timeout: 3, useSSL: useTLS, cleanSession: cleansession, onSuccess: onConnect, onFailure: function (message) { $('#status').val("Connection failed: " + message.errorMessage + "Retrying"); setTimeout(MQTTconnect, reconnectTimeout); } }; mqtt.onConnectionLost = onConnectionLost; mqtt.onMessageArrived = onMessageArrived; if (username != null) { options.userName = username; options.password = password; } console.log("Host="+ host + ", port=" + port + " TLS = " + useTLS + " username=" + username + " password=" + password); mqtt.connect(options); } function onConnect() { $('#status').val('Connected to ' + host + ':' + port); // Connection succeeded; subscribe to our topic mqtt.subscribe(topic, {qos: 0}); $('#topic').val(topic); mqtt.publish("/arduino/commando/", "test Intel"); } function onConnectionLost(response) { setTimeout(MQTTconnect, reconnectTimeout); $('#status').val("connection lost: " + responseObject.errorMessage + ". Reconnecting"); }; function onMessageArrived(message) { var topic = message.destinationName; var payload = message.payloadString; $('#ws').prepend('<li>' + topic + ' = ' + payload + '</li>'); }; $(document).ready(function() { MQTTconnect(); });
<header> <h2>MQTT Test</h2> </header> <div> Subscribed to <input type='text' id='topic' disabled /> Status: <input type='text' id='status' size="80" disabled /> <ul id='ws' style="font-family: 'Courier New', Courier, monospace;"></ul> </div>
In the host file:
host = 'm20.cloudmqtt.com'; // hostname or IP address
port = 13365;
topic = '/arduino/status/'; // topic to subscribe to
useTLS = false;
username = "test";
password = "test";
cleansession = true;
Nothing is happing on my app when I run it on my Iphone or Windows 8.
I also tried to adapt the host to my local IP-address and run the HiveMQ or Mosca server.
I can't get my app working, but with a MQTT client (MQTT.fx) everything is working.
- Tags:
- HTML5
- Intel® XDK
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Sorry, but none of us are familiar with MQTT, so we are not aware of what the requirements are to make that protocol work.
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Hello Jonas.
I´m trying to implement an app with MQTT protocol to communicate with myRio hardware.
Does your implementation worked?
Have you seen this plugin?
http://phonegap-plugins.com/plugins/arcoirislabs/mqtt-cordova

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