What is MQTT?

MQTT (Message Queuing Telemetry Transport) is a lightweight protocol designed for fast and efficient communication between IoT devices and cloud platforms.

Why Use MQTT?

It’s bandwidth-efficient, supports retained messages, and works over unstable networks. Perfect for IoT use-cases where speed and size matter.

How It Works

Devices (clients) publish data to a broker, and other devices or dashboards (subscribers) receive it in real-time.

Use Case Example

A temperature sensor publishes data every 5 seconds. A Node-RED dashboard subscribes and visualizes the data instantly.

Integration

MQTT brokers like Mosquitto are easy to set up. You can link it to Live Dashboards or feed data to automation systems.

External Resource

Read the official MQTT website for full specs and tools.