A compact 4-wheel smart rover designed for autonomous obstacle avoidance and smooth navigation. Equipped with ultrasonic sensors for real-time obstacle detection, a microcontroller-based control system, rechargeable power, and a modular 3D-printed body. The rover is built for reliable movement, sensor-based navigation, and practical robotics experimentation. Key Features: Ultrasonic obstacle detection Autonomous obstacle avoidance 4-wheel drive mobility Microcontroller-based control Rechargeable battery 3D-printed modular design LED status indicators Compact and lightweight build