OPC UA FX vs MQTT Sparkplug B compared for the Unified Namespace: machine-level field exchange vs enterprise event bus, TSN, payloads, when to bridge. 2026 decision guide.
DDS vs MQTT vs OPC UA in 2026 — QoS, discovery, security, broker vs brokerless, and a decision matrix for picking the right industrial messaging protocol by use case.
MQTT 5.0 features that actually move the needle — shared subscriptions, topic aliases, flow control, user properties, reason codes, and the 2026 production patterns to use them.
Hands-on tutorial: building a production-ready OPC UA server in Python with asyncua — address space modeling, security policies, subscriptions, and Docker packaging for IIoT in 2026.