This book is an interactive guide that blends hands-on experimentation with modern learning approaches. Instead of traditional instruction, the book presents a series of quests—practical challenges that encourage readers to explore, simulate, and build real-world mechatronic systems. From JavaScript-based simulations to sensor integration and video feedback control, each chapter builds technical skills through discovery and problem-solving. Alongside the technical content, the book reflects on how learning itself is evolving in the age of AI, emphasizing creativity, adaptability, and achievement over rote memorization. Supported by a companion website full of code and examples, this book is ideal for students, educators, and enthusiasts eager to learn by doing.