Khakam Ma'ruf, Rizal Justian Setiawan, Yu-Tzu Chen, Desi Ayu Kumalasari, Darmono, Amna Rusmala
Water hyacinth is widely used as a raw material for handicrafts, but its processing, particularly drying, remains largely manual and highly dependent on weather conditions. Efficient drying is essential to ensure product quality and support small and medium enterprises (SMEs) in the natural fiber craft sector. This research developed an integrated Internet of Things (IoT) monitoring and control system for a water hyacinth drying machine, incorporating a DS18B20 temperature sensor, an ESP32 microcontroller, and a solenoid valve. The system is designed to automate temperature regulation and optimize the drying process. The study employs a Research and Development (R and D) methodology with four stages, including identify IoT objectives, IoT component selection, implementation and prototyping, and integrate IoT system. Experimental results indicate that the DS18B20 sensor demonstrates high accuracy, with an average deviation of 0.1-0-2°C compared to a standard thermometer. The control system maintains the drying temperature within the optimal range of 70-85°C, with a maximum deviation of 1.7°C. The Blynk platform allows for remote monitoring and control via an intuitive user interface. Usability evaluation using the System Usability Scale (SUS) yielded an average score of 85.5, classified as 'Very Good' (Grade A). These findings confirm that the IoT-enabled drying machine improves operational efficiency, energy use, and product quality, while supporting the economic growth of SMEs in the natural fiber craft industry. © 2025 IEEE.
Universitas Gadjah Mada, Faculty of Engineering, Dept of Industrial Engineering, Yogyakarta, Indonesia; College of Engineering Yuan Ze University, Dept of Industrial Engineering and Management, Taoyuan, Taiwan; Universitas Negeri Yogyakarta, Faculty of Engineering, Dept of Civil Engineering Education, Yogyakarta, Indonesia; College of Agriculture and Natural Resources, National Chung Hsing University, Dept of Agriculture, Taichung, Taiwan
