Patrick Liu

8-Bit Computer Discrete TTL logic CPU with custom instruction set and microcode control Acoustic Sensing Grid STM32G4 + ESP32 array with 100kHz ADC and TDOA localization Aggie Street Smart AI bike routing that prioritizes safety over speed Autonomous Rover PID-controlled wheeled rover with solar panel and closed-loop motion control Library System Development Led development of my high school's library system with advanced search, special logging, and custom pages BWSI AUVC MIT Beaver Works Summer Institute - Autonomous Underwater Vehicle Challenge CartPole RL Deep reinforcement learning for classic control problem CogNix AI-assisted learning platform and VS Code extension to analyze AI usage in coding workflows Click to hear Cadence Cadence is a hybrid glove + camera MIDI controller turning hand motion into expressive music. Dactyl Manuform Keyboard Handwired split ergonomic keyboard build, shown in a soldering timelapse Eboard Battery Rebuild Boosted board battery pack rebuild with new 18650 cells Geosnap GeoGuessr x Snapchat-style location guessing game Lights Out Puzzle game where each press flips a light and its neighbors. The goal: Lights out! Game Console That Shocks You Like the Wii, but with a shocking twist Line Following Robot Arduino with IR sensors for line tracking MineRL Reinforcement learning agent trained in Minecraft environment Racecar Gym A2C/ResNet50 for autonomous vehicle control in PyBullet simulation ROV 6-thruster underwater vehicle with IMU, pressure sensors, and tethered Ethernet

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Robot Arm 6-DoF robotic arm with YOLO on a rail Self-Balancing Robot Two-wheeled balancing robot with PID control (sorry, lost video of it working!) Voyage Open-source iOS study timer built as a real flight: book a route, tear the pass, land the session VTOL Vertical take-off and landing aircraft prototype

Hockey Playing and refereeing hockey Skiing Lake Tahoe!!! Random From chess to wheelies to A LOT of fails.