TEMPERATURE CONTROL PROTOTYPE FOR CRAFT MICROBREWERIES USING ARDUINO NANO AND ELIPSE SCADA INTERFACE

Abstract

This paper presents the development of a low-cost prototype for temperature control in cold chambers of microbreweries, aiming to reduce losses caused by thermal variations outside the ideal range. The project emerged from the demand of a craft brewery in Volta Redonda (RJ), which faced production losses due to the lack of continuous thermal monitoring. The system uses an Arduino Nano microcontroller, a 10k NTC sensor, signaling LEDs, a 16x2 LCD display, and integrates a supervisory system developed on the Elipse SCADA platform, using the Modbus protocol for communication. Temperature reading is based on the Steinhart-Hart equation, ensuring high accuracy in converting analog data. The system triggers visual alerts according to the temperature range read, allowing quick intervention by operators. Tests validated the prototype's operation and reliability, demonstrating its viability as an alternative to using PLCs in small-scale productions. The results align with the literature, which advocates the use of automated systems to ensure food safety and efficiency in artisanal processes. It is concluded that the application of accessible technologies, such as Arduino, can represent a significant advancement for the microbrewery sector, combining innovation, control, and operational sustainability.