LAUREN TURNBOW

This is a tour guide robot that can guide users around a pre-determined path using color differentiation. For this prototype, the robot follows a blue path, marked on the ground with tape. When it encounters a green marker, it stops for a period of time, simulating reading a script about a certain location that it has reached, using an LCD screen that displays a short message about its current location. When it detects that it has gone off the path, it moves back on to it, using the omni-directional wheels connected to DC motors that is controlled using a TIVA TM4C micro controller. This micro controller was programmed in C using the microVision IDE. It can detect color using two RGB sensors on the bottom of the robot, connected to two Arduino pro micros, which can be programmed to detect any color sequence necessary. There is an ultrasonic sensor on the top level at the front of the robot to make sure that it does not run into anything. If something comes close to the robot, it stops to avoid hitting the object. The ultrasonic sensor is controlled using an Arduino Leonardo.