This project covers the design and building of a solid two-wheeled robot that balances on its own. It uses an adaptive PID control system made just for handling rough ground. Traditional PID setups often fall short in unpredictable spots because they stick to fixed settings. The robot gets better with added features to dodge obstacles. Those come from infrared and ultrasonic sensors working together. Power comes from an Arduino Nano V3.0 board along with geared DC motors. The whole thing includes software work, mechanical parts, electronics hookup, and tests on different surfaces. Think gravel, sand, grass, that sort of thing. Results in the report show it can steer clear of barriers pretty well. It stays stable and shifts with whatever comes up. Overall, this pushes forward smart systems that are tougher and more flexible on varied land. That helps in real uses like helping people move around or sorting warehouse tasks.