Technology development triggers the development of human thought to be able to create innovations to improve performance. The increasing cases of COVID-19 infection mean that you should seek to break the chain of this virus by self-isolation. However, the purpose of self-isolation rooms should be considered especially at rooms without air conditioning. These technological innovations are needed to provide comfort for patients and families. The goal of this study is to give families of COVID-19 positive patients easy access to their loved ones’ rooms without having to physically enter the room. The procedure is artificial intelligence with Arduino programming using Arduino IDE that is part of the micro controller board. Micro-controlled systems can be thought of as being like an integrated computer system packaged in a single chip. The result showed the temperature control system tool was able to work well with a temperature error rate of 1.13%. It is known that in COVID-19-positive patients it is very helpful for families to monitor room temperature and for patients to rest comfortably.