The Internet of Things (IoT) presents itself as an innovative technology that facilitates the interconnection of devices and physical systems via the Internet, allowing the exchange of data and the execution of automated actions. This thesis aims to examine the challenges developers face in developing firmware for IoT devices, as well as the essential criteria for their certification. The introduction outlines the fundamental significance of IoT in the contemporary technological landscape, highlighting its crucial role in establishing a digital ecosystem in which everyday objects acquire intelligence and the ability to communicate fluidly. We explore the evolution of IoT, from its embryonic phase to its practical applications in various fields, with particular attention to its impact on smart home environments.