Smart City/MQTT

Platform

MQTT

Lightweight publish/subscribe messaging for IoT systems

Overview

What is MQTT?

MQTT is a lightweight publish/subscribe messaging protocol widely used to transport IoT telemetry through a message broker. It allows connected devices and gateways to publish data that authorized applications can consume without requiring every application to connect directly to each device.

For example, a gateway can publish sensor readings to an MQTT broker, allowing an IoT platform, dashboard, and rules engine to receive the relevant data through their own subscriptions.

Why MQTT

Key Features & Benefits

  1. 1

    Decoupled Messaging

    Publish sensor readings once for delivery to authorized subscribers.

  2. 2

    Flexible Payloads

    Carry structured application data through clearly defined topic namespaces.

  3. 3

    Service Reliability Choices

    Select appropriate Quality of Service (QoS) levels and retained-message behavior for the application.

  4. 4

    Transport Security

    Use TLS encryption, authentication, and topic-level access controls where supported.

In Practice

Practical Example

Customer Need:

A solution provider wants multiple software services to consume live telemetry from an IoT gateway.

Example Deployment:

A gateway publishes sensor data to a defined MQTT topic, which an IoT platform subscribes to for processing and visualization.

Typical Architecture:

Device → MQTT broker with TLS → subscribed application or rules engine.

Monitoring Data:

  • Broker connection status
  • Message frequency
  • Delivery or connection failures
  • Topic payload values

Expected Outcome:

A broker-mediated data stream can supply dashboards, alarms, and other authorized systems without requiring separate direct connections to each data source.

Requirements

Required Hardware & Software

  • MQTT-capable device or client
  • MQTT broker
  • Authentication credentials and access policies
  • Defined topic structure and payload schema
  • Receiving application or IoT platform

Support

How BoxTech Supports Your Project

BoxTech works with IoT solution providers, resellers, system integrators, and software partners to bring the hardware and technical requirements together.

We can help structure MQTT topics and payloads, configure supported device clients, and validate secure message delivery between brokers and partner platforms.

Support may include hardware sourcing, sample testing, configuration guidance, compatibility checks, and integration assistance, subject to selected products and agreed project scope.

Before You Deploy

What to Validate

  • Choose QoS levels appropriate to the application's delivery requirements.
  • Test reconnection behavior following network or broker interruptions.
  • Confirm retained-message settings and their intended use.
  • Verify authentication, topic permissions, and secure transport configuration.

Get Started

Discuss Your MQTT Project with BoxTech

Share your device requirements, telemetry format, expected message volume, and target platform to assess a suitable connectivity and integration approach.

Global IoT Hardware. Local Expertise. Faster Deployment.

Discuss Your Project