Living benchmark — MQTT, CoAP, AMQP, and HTTP/3 measured under identical test conditions. Latency, throughput, power, and payload overhead. Updated April 2026.
Practitioner's guide to IEC 62443 — zones and conduits, security levels SL1-SL4, Purdue model alignment, and concrete reference architectures for ICS protection.
Step-by-step guide to running ML models on ESP32 using TensorFlow Lite Micro — quantization, memory budgeting, ESP-NN acceleration, and deployment patterns.
How ROS 2's Nav2 stack powers production AMR fleets in warehouses — behavior trees, SLAM, costmaps, path planning, and fleet orchestration. Architecture deep-dive with failure modes.
Deep-dive into OPC UA FX (UAFX) architecture — pub/sub, TSN integration, controller-to-controller communication, and migration from legacy fieldbus. End-to-end reference design with failure modes.
Deep-dive comparison of Siemens MindSphere, AWS IoT SiteWise, and Azure IoT Hub for industrial IoT deployments. Architecture, data ingestion, edge capabilities, and cost analysis.
A production-grade UNS reference architecture for industrial IoT — Sparkplug B, broker topology, schema governance, ISA-95 alignment, and failure modes.
Section 1: The Strategic Imperative of Predictive Maintenance in Industry 4.0 The advent of Industry 4.0, characterized by the convergence of digital technologies with industrial processes, has fundamentally reshaped…