The IoT protocol stack explained as a modular architecture — device, transport, messaging, and semantic layers, with how to choose MQTT, CoAP, or OPC UA.
Thread vs Matter — network layer vs application layer. Mesh routing, OpenThread border router, Matter clusters, IPv6, and the 2026 smart-home interop story explained.
Living benchmark — MQTT, CoAP, AMQP, and HTTP/3 measured under identical test conditions. Latency, throughput, power, and payload overhead. Updated April 2026.