Development of Automatic Cryotherapy Device Using Arduino ATmega 328 Based Microcontroller for Facial Skin Care

Abstract

Cryotherapy is a series of therapies that put the body in a cold room below 0 degrees for a while. Cryotherapy is applied using various methods, including vapocoolant sprays, cold compresses or ice, and continuous control of cold devices. In 2023, cryotherapy using a compressor and refrigerant is needed for regular refrigerant refills. This affects temperature stability and cooling time. This prototype aims to develop a Cryotherapy with hardware and software designs for predetermined temperature and timer settings. The research design is a developmental research design with an experimental method. The prototype was evaluated by measuring the time required to reach low temperatures, temperature differences between the Cryosurgery gun and the probe tip, and the accuracy of the prototype. These test results indicate that the greater the temperature difference during cooling, the longer the cooling time. The time span that reaches the setting temperature at high temperature (17° C) is 0:04:05 – 0:07:53 minutes and it is linear. The timer test yielded an accuracy result of 93,02%. The final result of the Arduino ATmega 328-based Cryotherapy device prototype has an average accuracy of more than 96,31%.