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To add code for an MQTT broker on your page, you can use the following example code:

const mqtt = require('mqtt');

// Connect to the MQTT broker
const client = mqtt.connect('mqtt://localhost:1883');

// Handle connection
client.on('connect', () => {
  console.log('Connected to MQTT broker');
});

// Handle MQTT messages
client.on('message', (topic, message) => {
  console.log(`Received message: ${message.toString()} on topic: ${topic}`);
});

// Subscribe to a topic
client.subscribe('your/topic');

// Publish a message
client.publish('your/topic', 'Hello, MQTT!');

// Disconnect from the MQTT broker
client.on('close', () => {
  console.log('Disconnected from MQTT broker');
});

Please ensure that you have already installed the MQTT library for your project by running npm install mqtt in your project directory. Also, modify the MQTT broker address (‘mqtt://localhost:1883’) and the topic (‘your/topic’) as per your requirements.

Please note that to run MQTT code, you generally need a server running an MQTT broker, such as Mosquitto. Make sure you have the necessary setup in place for the MQTT broker to work correctly.

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