This is my first project. Mobile Autonomous Ultrasonic Sensing Robot . We mostly just wanted the name to sound like it was a mouse. Me and my partner worked on the electronics and design over the course of about 6 days. It used Ultrasonic sensors to detect when it was near a wall and then acted to avoid it. The avoidance mechanism was entirely hard-coded, of course, but it handled itself in almost any situation. It was really fun and I think it was a good first project.