Automatic Weeding Robot

This project focuses on the design and development of a solar-powered grass-cutting machine capable of performing autonomous cutting while ensuring safety and efficiency. The system is powered by a 12V rechargeable battery that is charged through a solar panel, eliminating the need for an external power supply. The stored energy drives both the grass-cutting motor and the vehicle’s motion motors. A microcontroller unit controls the entire system, managing blade rotation, vehicle movement, and obstacle detection. An ultrasonic sensor is integrated to identify obstacles such as humans, animals, or objects in the path of the machine. Upon detecting an obstacle, the microcontroller halts the blade operation, activates a warning signal, and guides the vehicle towards an alternative route. Once the way is clear, the machine resumes forward motion and continues grass cutting. This design ensures both efficiency and user safety. The project demonstrates the advantages of renewable energy by reducing reliance on fossil fuels and minimizing environmental pollution. Unlike traditional grass cutters, which are noisy, fuel-dependent, and require frequent maintenance, the proposed machine is eco-friendly, cost-effective, and easy to maintain. With minimal manual intervention, it is suitable for lawns, gardens, and small agricultural fields. The integration of solar