The Five Layers of a Practical IoT System
November 15, 2025
A practical five-layer model for IoT systems, showing how devices, protocols, edge runtime, backend services, and applications fit together.
Self-Watering Garden: An IoT Architecture Case Study
May 25, 2022
A case study for a proof-of-concept self-watering garden system that uses soil moisture telemetry, an edge gateway, MQTT, REST APIs, and a dashboard to coordinate irrigation decisions.
ESP32 Collection Station Architecture for IoT Sensor Networks
January 13, 2022
How an ESP32-based collection station fits into an IoT system: sensor sampling, MQTT publishing, local buffering, sleep modes, OTA updates, and the boundary between device firmware and the edge gateway.
OttO: A Go-Based IoT Edge Gateway Architecture
January 13, 2022
OttO is a Go-based IoT edge gateway that connects sensor stations, MQTT messages, REST APIs, WebSocket dashboards, and application logic at the boundary between devices and backend systems.