Abstract: Smart campus environments increasingly rely on IoT platforms to provision, configure, monitor, and control devices across multiple building spaces. As deployments scale, differences in communication protocols, payload structures, and data models complicate integration, monitoring, and visualization. This paper proposes a reusable room-centric configuration approach for IoT device management and monitoring, implemented in Node-RED as a visual orchestration layer. The technical contribution is a template-based method that transforms heterogeneous MQTT device payloads into unified room-level data objects reusable across similar spaces with minimal reconfiguration. The approach is validated through smart campus scenarios in a Smart Lecture Hall, covering network connectivity, energy consumption, and electricity availability. To evaluate deployment efficiency, a simulation experiment based on a real configuration session was conducted. Results show that reusing the initial room setup as a Node-RED template reduced configuration time for a five-room deployment from 70.47 to 35.47 minutes, improving the overall process by 49.66%.

Keywords: Node-Red, MQTT, Data models, Internet of Things (IoT), IoT devices, Smart Campus

Pages: 417-431