This book is designed for vocational education in electronic technology applications, focusing on cultivating students' practical skills through hands-on projects. It features six integrated projects centered around building a simple smart home system, covering key aspects such as circuit design, component selection, simulation, PCB fabrication, installation, and debugging. Each project follows a structured workflow to ensure real-world applicability, combining knowledge from multiple disciplines to create functional electronic products like kitchen/bathroom safety systems and intelligent anti-theft solutions. The book emphasizes a task-driven approach, guiding students through planning, implementation, and evaluation while fostering professional habits and safety awareness.