Let’s take a look at our electrical sub-system.
The electrical system in Barunastra's ASV is responsible for powering and managing all electrical components, this year we focus on space efficiency, modularity, and easier maintenance to improve overall performance. All these improvements work toward a unified goal of creating a reliable, adaptable system that ensures seamless integration and supports mission-critical innovations like the racquetball launcher. Compared to last year, this year’s design addresses challenges with system integration and troubleshooting by introducing a streamlined dual-PCB architecture, enhanced safety features, and simplified debugging processes to ensure greater efficiency and reliability.
For RoboBoat 2025, Barunastra optimized electrical design focused on space efficiency, modularity, and easier maintenance. This improved architecture simplifies system integration, supports new components like a racquetball launcher, and ensures adaptability to mission demands. *You can see more detail on our TDR in Appendix G
Nala Ares introduces a efficient PCB system for enhanced performance and reliability. The design includes two main PCBs: the Power PCB for thruster power and protection, and the Controller PCB for navigation and sensor management. Secondary PCBs, like the ESC Holder and LED Indicator, support overall functionality. With clear annotations and debugging indicators, the power schematic handles key tasks like power distribution, converters, and the ball launcher while simplifying troubleshooting. A compact design splits tasks between the Pixhawk (primary controller) and STM32F411CEU6 (secondary controller). Features like a Kill Switch and Emergency Button ensure safety, while efficient layouts improve debugging and maintenance. *You can see more detail on our TDR in Appendix G
Barunastra's racquetball launcher uses a push-pull solenoid mechanism for fast, consistent launches. A high current moves an iron rod through the solenoid coil, extended by a spring for reset. The rod's 3D-printed square tip is optimized for the ball's round shape, ensuring accurate shots. An inclined angle boosts launch distance, while a servo-controlled rotating gate handles reloading. Raised rail walls prevent the ball from bouncing out on rough waves. The launcher’s bracket features adjustable bolt joints for secure and flexible installation on the deck or frame. *You can see more detail on our TDR in Appendix E