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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