Summary
In this chapter, you added to your robot an array of sensors to avoid obstacles, and a digital compass so that you can plan your route. You also learned some simple route planning techniques so that your robot can reach a goal location.
In the next chapter, we'll add vision to your robot, so you can know even more about your surrounding. You'll learn to how to detect not only color but also motion; these can be used to provide control of your robot as it moves.