College - Author 1

College of Engineering

Department - Author 1

Electrical Engineering Department

Degree Name - Author 1

BS in Electrical Engineering



Primary Advisor

Xiaomin Jin, College of Engineering, Electrical Engineering Department


Reaction wheels are crucial for CubeSats, providing precise attitude control and stability in the environment of space, enabling successful mission execution. The ‘Reaction Wheels’ project in the Cal Poly CubeSat Lab is in need of a new motor controller board due to the current board’s malfunction and inefficiencies in terms of size, complexity, power usage, and cost. Previously, other students have completed work on the mechanical design of the system, but little work has been done for the electrical components. The goal of this project is to design and test a new motor controller board that is compact, lightweight, power efficient, integrated with the primary compute board, and is ready for use in space environments so that upcoming missions can easily integrate reaction wheels into their system. This document serves as the final design report for the Motor Controller Board for CubeSat Reaction Wheels in the Electrical Engineering Department. The project background, specifications, design, assembly, and testing is presented.