Conclusion
The engineering goal was accomplished. The robot would follow the sound and if obstacles were in its way it would just move around it and make a U-turn. After redesigning the legged robot, it can be used as a prototype for a robot in a natural disaster. The final product consisted of two servomotors, aluminum plates, legs, and microphones. This project could possibly be marketed. In the future more sensors and wheels could be added to the robot and allow it to perform even better.