ABSTRACT
The recent technological innovations have focused on the development of monitoring and control systems of different operations, in an effort to meet the needs of human beings. One of them is environmental monitoring systems which are essential in monitoring and ensuring conditions are within the acceptable limit like carbon dioxide and radiation levels. After environmental systems are fitted with sensors, microcontrollers, and software programs, they become intelligent and self-regulating ecosystems. The Internet of Things (IoT) is a major factor that will also help in bringing these systems to daily life through the use of sensor networks to collect and store data on cloud computing systems. Such data is the basis of applications that regulate and automate the response. The given paper describes an IoT-based system which is aimed at monitoring temperature and humidity with the usage of Arduino UNO, DHT11 sensors, and ESP8266 Wi-Fi modules and supported with air quality sensors (MQ-135) and CO2 sensors (MQ-9). The data is uploaded to the IoT API to analyze it and be viewed on an Android application. The efficiency of the system is tested by the results of the experimental work and proves the real-time visualization of the data and control over it with the help of convenient mobile interfaces.
