IoT-Based Solar Dehydration Tunnel: Controlling and Monitoring Units

This project presents the design and implementation of an IoT-based solar dehydration tunnel system aimed at enhancing the efficiency and control of food dehydration processes. The system integrates solar energy as the primary heat source with smart sensors and microcontrollers to monitor critical environmental parameters such as temperature, humidity, and airflow within the dehydration chamber. Real-time data acquisition and transmission are enabled through Internet of Things (IoT) technologies, allowing remote access and control via web or mobile interfaces. The control unit dynamically adjusts fan speeds and ventilation based on sensor feedback to maintain optimal drying conditions, improving energy efficiency and product quality. The proposed system contributes to sustainable food processing by reducing dependency on conventional energy sources and enabling precision drying through intelligent automation. Keywords: IoT, Solar Dehydration, ESP32, DHT11, LDR, Arduino, Smart Agriculture, Renewable Energy