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Design and Implementation of a Cost-Effective IoT Weather Station on Open-Source Hardware
J. Subbarayudu
Professor, Department of CSE, CMR Engineering College, India.
Keywords:
IoT weather station; open-source hardware; energy harvesting; multi-protocol
connectivity; edge AI; sensor calibration; data security.
Abstract
The proliferation of proprietary IoT weather stations has often been hindered by high costs, limited sensor scope, and inadequate power management. This paper presents the design and implementation of a cost-effective IoT weather station built entirely on open source hardware and software. Leveraging modular sensor nodes, the system integrates wind speed, barometric pressure, UV index, precipitation, temperature, and humidity measurements to deliver comprehensive environmental monitoring. A ruggedized enclosure, coupled with solar energy harvesting and adaptive sleep–wake cycles, enables weeks-long autonomous operation in diverse outdoor conditions. Dual-protocol connectivity supporting LoRaWAN, NB-IoT, MQTT over cellular, and BLE provides both long-range reach and high-throughput local access. Data accuracy is enhanced through automated calibration routines and redundant sensing, while on-device edge AI and cloud-based machine-learning forecasting enable real-time analytics and predictive insights. Security and privacy controls are embedded from the ground up via TLS authentication, message encryption, and optional local data storage. Field trials demonstrate reliable data acquisition with less than 2% measurement drift over 30 days, 98% uptime, and energy self-sufficiency under variable sunlight conditions. The open-source release of all schematics, firmware, and cloud integration scripts fosters transparency and rapid community-driven innovation. This work establishes a robust, low-cost platform that overcomes the limitations of existing garden focused prototypes and provides a scalable solution for research, educational, and community deployments.
Details
Published
2024-12-22
Pages
1-9
Issue
Vol. 3 No. 4 (2024):
IJRTTE - 03 - 04
Section
Articles