In this chapter, we learned how to implement skid-steering, using a rangefinder for obstacle avoidance, and how to make a rover follow us using Bluetooth and an Android phone app. As you can see (on some) applications with Pixhawk can be far easier than they seem at first. You can pilot your rover with your phone and even use a map to lay out a course (using waypoints) for the rover to automatically drive itself. But, most importantly, your new rover will follow your phone as if it were on a leash.
Now, we'll move on to some more advanced applications for Pixhawk aircraft. Brace yourself, this is where designing, fabricating, and implementing Pixhawk gets a lot more complex. But it's also where Pixhawk really shines, and is a whole lot of fun!