A Low-Cost and Open-Source Robotic Fish Using 3d Printing Technology

This paper presents the development of a low-cost, open-source robotic fish prototype based on 3D printing, with the improvement of light-following capabilities. The robotic fish has two photoresistors as eyes, and a proportional controller was developed for the robot to perform light-following tasks. The paper details the construction and development of the robotic fish prototype, including the 3D modeling of the chassis, construction of the propellers, assembly of the embedded electronic circuit, and the control system. The use of a photoresistor sensor and a proportional controller is discussed, and results show that the proposed design effectively follows a light source. The work delivers a low-cost and open-source platform in the field of underwater robotics and contributes to the development of technologies increasingly used as a tool in scientific research.