An Affordable Monitoring System for Room’s Temperature and Humidity (MS_RTH)

Automation becomes a mandatory option to be used in our daily life. This includes home automation systems which is referred to controlling home utilizations either by wired or wireless communication. This facility is even more required for an elder, disable, or any other vulnerable person in the house. On the other hand, Arduino is an easy to use, powerful, cost effective, and efficient microcontroller tool which is used in many automation systems. In this paper, an affordable monitoring system is proposed by integrating an Arduino-built system with a suitable smartphone application to measure and control a room’s temperature and humidity. Knowing that, mobile technology has changed everybody’s life in today’s world and people are carrying smartphones nearly all the time whether they are outside or inside their homes, it is suitable to have a smartphone application to measure and control any room’s temperature using them. For this paper requirements, Android smartphone platform was chosen to build the required application and connected successfully with the Arduino-built measurement system using MIT APP Inventor2 builder. The application was built and implemented effectively in measuring any room’s temperature and humidity frequently successfully. The Android application also provides a warning message if the temperature exceeds the permitted edge. The later facility is very important to avoid possible fire accidents or similar undesired room’s atmosphere.