Inteligent Systems have become increasingly present in everyday life, with monitoring systems and sensor networks being a frequent occurrence in society. These devices can serve various purposes, with one of the most common being the collection of environmental data through sensors. This is essential for conveying valuable information about the space and ensuring that attributes such as temperature, humidity, and luminosity are at appropriate levels. Suitable situations for this type of system include monitoring small agricultural installations, supervision of unhealthy conditions in workplaces, etc. In this context, it was used a NodeMCU ESP32 microcontroller embedded in the Android operational system. The device is equipped with various sensors common to a conventional weather station. The sensor data travels through all the Android layers, starting from the hardware layer, passing through the HAL (Hardware Abstraction Layer ), and reaching the application layer, where an app received the information and presented to the user in a simple, dynamic and friendly manner.
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