A Bioreactor for Cocoa Fermentation Using an ESP32 Microcontroller with Integrated Temperature Sensor and IoT Functionality

This article discusses the development of a bioreactor for cocoa fermentation using the ESP32 microcontroller with temperature and humidity sensor for moisture and temperature measurement. The system includes a NEMA 17 stepper motor coupled to a configuration of pulleys and sprocket, in addition the integration of chains and chamfers is explored to ensure synchronization of motion within the system. The Blynk platform is used for remote monitoring. The research evaluates the feasibility of this mechanical and electronic design to automate the cocoa fermentation process, offering an innovative and efficient solution in the field of biotechnology.