In this study, the technical specifications and hardware architecture of the Deneyap Card family are evaluated with a detailed perspective. The application potential of the Deneyap Card family in sensor-based systems is comprehensively addressed. The roles it can undertake in Internet of Things (IoT) based applications are mentioned. The tasks that it can undertake in Internet of Things–based applications are discussed. Deneyap Card 1.0, Deneyap Card 1A, Deneyap Mini, Deneyap Mini v2, Deneyap Card 1A v2 (Type C), Deneyap Card G, and Deneyap Card External Pin Module models are presented with comparative information on their processor and memory structures. Their input and output capabilities are compared in terms of GPIO pins. The multi-sensor integration of the cards, wireless communication modules, and energy usage scenarios are examined. Evaluations are carried out for selecting a suitable card for developers worldwide.