Temperature and humidity monitoring using the internet of things

Internet of Things (IoT) is a concept that refers to the connection between everyday elements and the Internet, in a way that common daily activities can be automated and simplified. The addition of it to our daily routine allows ordinary actions to become more efficient. Furthermore, the use of Internet connection as a way of communicating enables live display at any place, which adds up advantages. Also in everyday life, temperature control becomes more and more necessary in many different environments, such as industrial, commercial, or residential. Thus, control processes need to accompany the evolution of internet connectivity in many fields, throughout applications that can be used in mobile devices alongside these processes. This paper proposes temperature monitoring of an environment, via wireless communication and with live interface display on a web page or a mobile application developed in MIT App Inventor (Massachusetts Institute of Technology). While implementing commands via hardware and software a procedure to lower room temperature was applied through a ventilation system. The data are collected through a DHT11 temperature sensor, and the wireless communication is through a Node MCU Wi-Fi module, alongside the development board Arduino UNO. It was possible to condition the cooler to work accordingly with a preset temperature range by using its IDE (Integrated Development Environment). Thereby, this project is a low-cost solution in low scale and advantageous alternative to temperature control while implementing the concept of IoT.