Message Queuing Telemetry Transport
Message Queuing Telemetry Transport (MQTT) is a lightweight, publish-subscribe network protocol designed for constrained devices and low-bandwidth, high-latency, or unreliable networks. It is widely used in Internet of Things (IoT) applications for efficient machine-to-machine (M2M) communication, enabling devices to send and receive messages through a central broker. The protocol minimizes network bandwidth and device resource requirements, making it ideal for remote monitoring and control scenarios.
Developers should learn MQTT when building IoT systems, such as smart home devices, industrial automation, or telemetry applications, where reliable, low-overhead messaging is critical. It is particularly useful for environments with limited connectivity or battery-powered devices, as it supports quality of service levels and persistent sessions to ensure message delivery. Use cases include sensor data collection, real-time notifications, and device management in distributed networks.