Implementation of IoT-Based Batik Fabric Dryer to Preserve Color and Fabric Quality (Case Study: Batik Puspayindra, Blitar)

Batik Puspayindra MSME in Blitar City still relies on manual drying methods that depend on sunlight and wind. This traditional approach often creates challenges such as unpredictable drying time, risk of color fading, fabric shrinkage, and mold growth due to uncontrolled humidity. This study aims to develop a batik fabric drying system based on the Internet of Things (IoT) with a Proportional Integral Derivative (PID) control method. The research employed a Research and Development (R&D) approach by designing hardware components, including ESP32, DHT11 sensor, DC fan, heater, and exhaust fan, along with software using Arduino IDE integrated with the Blynk application for remote monitoring. Experimental results indicate that the system can maintain temperature within 25–35℃ and humidity at 52% in a stable manner, performing more effectively than the manual method. The implementation of this system enhances production efficiency, preserves fabric quality, and provides convenience for MSME owners by enabling real-time monitoring of the drying process via smartphone