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RoboSub

The Competition

Field testing in the Georgia Tech pool

The RoboSub competition challenges students to build and program autonomous underwater vehicles. The underwater environment poses unique development challenges and inspires creative solutions.

The robot must complete a series of tasks autonomously, including obstacle avoidance, pinger detection, breaching, and more! We last participated in RoboSub in 2019, and we are looking forward to returning in 2025.

AUV 2025

A new vehicle, Take Two, will be making it's competition debut at RoboSub 2025 for MRG's first return since 2020. The platform focuses on simplicity and modularity, enabeling strong future development.

Take Two has a cast acrylic hull with eight polycarbonate guide rods around it, where we can mount different subsystems and sensors—like the powertrain and other electronics. Inside, and extendable drawer-style setup makes it easy to access and work on the electrical components, which include in-house-developed PCBs, fuses, buck converters, and more. We also put a lot of effort into making sure mechanical and software teams could work in parallel by using a medium-fidelity simulation in Gazebo.

Mechanical Design

  • X-Drive thruster configuration for maneuverability and sway

  • Cast acrylic hull with polycarbonate guide rails to efficiently mount subsystems and facilitate future development

  • Custom printed mounting solutions with attention to weight balance and bouyancy

  • In-progress development of autonomous torpedos with on-board visual processing and control

Full Documentation

Electrical Design

  • Electrically isolated Computation and Thruster Power Systems

  • In-house developed motor control board and circuuit protection boards

  • Extendable interior drawer to facilitate access and maintenance

  • External battery housing for improved test-flow and modularity

Full Documentation

Software Design

  • Code written in Python and C++ under the ROS 2 framework

  • Gazebo simulation environment used for rapid software development in parallel with physical development

  • IMU and WaterLinked DVL A50 used for localization

  • Stereo Camera and Sonar used for perception

Full Documentation

2025 Team Roster

Shawn Coutinho
Sean Fish
Mitchell Turton
John Beeson
Zachary Greenberg
Agatta Betancourth Pollett
Erin Beazley
Matthew Woodward
Nicholas Lai
Aaron Wu
Marine Robotics Group
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