Industrial Automatic Control Systems and Controllers Annotation << Back Application of Open Hardware Platforms Arduino and Raspberry Pi 5 for Rapid Prototyping of Digital Twins of Industrial Objects Temerbekova B.M., Mamanazarov U.B., Bekimbetov B.M., Turgunaliyeva O.T. The article justifies the feasibility of using Arduino microcontroller boards and the Raspberry Pi 5 (RPi 5) singleboard computer as the hardware basis for prototypes of digital twins (DT) of complex technological systems. It shows the “sensor → Arduino → RPi 5 (Edge) → Cloud” architecture, which provides low latency of local response and high computing power of cloud simulation. A comparative analysis of performance, energy, and economic indicators is provided, and issues of reliability, cybersecurity, and scalability are discussed. An experimental test bench based on Arduino Nano Matter and RPi 5 is described, implementing a digital twin of a conveyor line using NVIDIA Omniverse. Test results confirm that open hardware platforms are capable of providing a polling cycle of ≤ 20 ms and an accuracy forecast of ±2 % with a 70 % reduction in capital costs compared to industrial IPC/PLC solutions. Keywords: digital twin; edge AI; Raspberry Pi 5; Arduino; industrial IoT; prototyping. DOI: 10.25791/asu.10.2025.1617 Pp. 24-34.