Home Scale Yogurt Incubator Control System using Microcontroller ATmega328

Abstract

The process of producing yogurt has been known since long time ago, but usually it carried out traditionally without using control technology. This paper aims to produce easy use of home-scale yogurt incubator system using Microcontroller ATmega328. The incubator was modified from two-liter volume of rice cooker controlled by ATmega328, where the temperature is measured by the DS18B20 temperature sensor. ATmega 328P also acts as a time-controller during the process of producing yogurt. The yogurt incubator system resulted in this research works well according to the system designed, including pasteurization, cooling inoculation, and incubation processes. The system can work automatically and very easy to use. Compare with conventional system, this system even works faster and able to produce better quality yogurt.