Smart AgroSense: An IoT-Based Multi-Point Wireless Sensor System for Precision Farming

This paper presents Smart AgroSense, a cost-effective and energy-efficient IoT-based multi-point Wireless Sensor Network (WSN) designed for real-time precision agriculture. The system utilizes ESP32 microcontrollers and nRF24L01 RF transceivers to form a robust many-to-one communication architecture. Three remote sensor nodes, each integrating a DHT22 temperature–humidity sensor and a capacitive soil-moisture sensor, transmit localized environmental data to a central base station using a time-staggered, fixed-sequence protocol that ensures ordered and collision-free communication. It demonstrates a functional proof of concept for decentralized WSNs in agriculture, addressing challenges such as inefficient irrigation and delayed decision-making, and promoting sustainable, data-driven farming practices.

IoT, Wireless Sensor Network (WSN)

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