Posts tagged "IoT"
5 articles across the Voltrus blog.
This collection brings together every IoT article published on the Voltrus blog. "MQTT vs HTTP for IoT: Which Protocol Should You Use", "MQTT vs Direct Database Writes from IoT Devices: Why the Broker Wins", "MQTT Retained Messages and Last Will: Explained with Examples" — each one is a practical, hands-on guide written for engineers and system integrators. 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 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 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 articleThe Industrial Edge Gateway Stack: What You Actually Need in 2026
An edge gateway needs three things: a protocol-capable agent, a local buffer, and northbound transport. The minimal stack runs in 512 MB — the vendor bloat stack eats 4 GB.
Read articleSCADA vs IoT: Why Industrial Monitoring Isn't Just "Smart Devices"
SCADA vs IoT for industrial monitoring. Overlap, differences, and why protocol support matters more than buzzwords for system integrators.
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