Implementação de experimentos de simulação com Raspberry Pi 3 Model B para a disciplina de Fundamentos de Comunicações

Abstract

Active learning methods, in which the student becomes the protagonist in the process of learning, have become increasingly common in the educational context. In engineering classes, projects are constantly developed in which the student can apply knowledge in a practical way, creating a deep learning experience. However, in classes such as Fundamentals of Communications, complexity and equipment pricing can make it difficult to develop projects that cover all the studied topics. The present work consists of using the MATLAB® software together with the Raspberry Pi 3 board to develop a series of experiments that use the knowledge learned in the Fundamentals of Communications. The experiments were carried out using block diagrams developed using the Simulink®tool and topics such as analog and digital modulation and signal filtering were covered. Communication between the Raspberry Pi 3 and the external world is done through a USB sound card, which acts as an AD and DA converter, and allows both the insertion of external signals and the visualization of the processed signals on an oscilloscope, in order to take the student beyond the simulation environment. The results obtained demonstrate a functional proposal, suitable for teaching purposes, since it allows the implementation of simple and low-cost experiments. Despite the limitations faced, the chosen approach expands the pedagogical possibilities of communications teaching.