Abstract: This project presents the design and development of a smart solar dryer using Arduino for the drying of agricultural products. The system uses solar power as the primary source of energy, making it cost-effective and environmentally friendly. An Arduino controller is used to automate the drying process, ensuring consistent and optimal drying conditions. Temperature and humidity sensors are used to monitor and control the drying process, ensuring that the products are dried to a high standard. The system also includes a fan, LED lights, and a relay module for efficient and effective drying. The results of the research show that the smart solar dryer using Arduino is an efficient and effective solution for the drying of agricultural products, providing high-quality drying while reducing labour costs and increasing productivity. The system has several advantages over traditional drying methods, making it a promising solution for drying various products.

Keywords: smart solar dryer, Arduino, agricultural products, solar power, automation, temperature sensor, humidity sensor, fan, LED lights, relay module, high-quality drying, productivity, cost-effective.

| DOI: 10.17148/IARJSET.2023.10460