MQTT
8 articles tagged "MQTT" on the MQTT Explorer blog.
This collection brings together every MQTT article published on the MQTT Explorer blog. "MQTT Topic Design: Best Practices for Naming and Wildcards", "MQTT vs HTTP for IoT: Which Protocol Should You Use", "MQTT vs Direct Database Writes from IoT Devices: Why the Broker Wins" — each one is a practical, hands-on guide written for engineers and system integrators who work with MQTT Explorer in real industrial deployments. Whether you are choosing between protocols, troubleshooting a connection, or planning an integration, these articles cover the concepts, the trade-offs, and the step-by-step details you need.
MQTT Topic Design: Best Practices for Naming and Wildcards
MQTT topic naming rules, forward-slash hierarchy, the + and # wildcards, shared subscriptions, ACL security, and the anti-patterns that bite teams in production.
Read articleMQTT vs HTTP for IoT: Which Protocol Should You Use
MQTT vs HTTP for IoT — publish/subscribe vs request/response, 2-byte headers vs hundreds, push vs poll, QoS guarantees, and when to use each protocol.
Read articleMQTT vs Direct Database Writes from IoT Devices: Why the Broker Wins
Why IoT devices that INSERT directly to Postgres, MySQL, or SQL Server break at scale — connection limits, schema coupling, no offline buffering, credential sprawl — and why an MQTT broker feeding a single ingest bridge is the architecture that survives a field fleet.
Read articleMQTT Keep Alive Explained: What It Is, How to Tune It, and Why Clients Disconnect
MQTT keep alive explained: the CONNECT packet field, the 1.5x timeout rule, PINGREQ/PINGRESP, how brokers detect dead clients, and how to choose the right interval for IoT devices.
Read articleMQTT Retained Messages and Last Will: Explained with Examples
Retained messages give new subscribers instant state; Last Will publishes on ungraceful disconnect for offline detection. Concrete topic and payload examples included.
Read articleMQTT Sparkplug B Explained: Industrial IoT Protocol Guide (2026)
MQTT Sparkplug B explained for industrial automation. Understand topics, payloads, birth/death certificates, data types, and how Sparkplug B compares to basic MQTT.
Read articleMQTT QoS Levels Explained: When to Use QoS 0, 1, or 2
MQTT QoS 0, 1, and 2 explained with practical examples. At-most-once, at-least-once, exactly-once delivery for IoT and industrial systems.
Read articleMQTT Broker on macOS: Run One Without Homebrew or Terminal
How to run an MQTT broker on macOS without Homebrew, Terminal, or mosquitto. Native MQTT broker and client with GUI for macOS.
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