Selecting the Right Motor Driver for Autonomous Robots
A deep dive into H-bridge motor drivers: comparing L298N vs DRV8833, PWM control strategies, and protecting against back-EMF. Includes wiring diagrams and Arduino code.
Building Reliable Two-Wheeled Differential Drive
Kinematics, PWM tuning, and PID feedback control for smooth autonomous navigation. How to achieve precise steering without encoders. Practical implementation on Quest robot.
Real-time Arduino-to-Raspberry Pi Communication
Serial protocol design, interrupt handling, and state machine architecture. How Quest coordinates low-level motor control (Arduino) with high-level vision (Pi).
3D Printing Parts for Robotics: Tips & Pitfalls
Selecting infill density, supports, and print orientation for functional parts. How I designed servo mounts that survive real-world stress. Materials comparison: PLA vs PETG vs Nylon.
Power Management in Battery-Powered Robots
Designing power distribution boards, buck converters for logic rails, capacitor banks for servo spikes. Extending runtime through voltage regulation and efficiency optimization.
Physics-Based Game Mechanics in JavaScript
Implementing collision detection, gravity, and momentum in Code.org Game Lab. Lessons learned building Fin Lock and Twisted Tetris. Performance tips for 2D games.