Now that you can move around you should add a way for your Wall-E to see so that it won't run into walls. To do this, you'll use a Kinect 360, an amazing device from Microsoft that will not only give you a picture but also a depth image of your surroundings.

The Kinect 360 is particularly interesting because it provides all this in one package, and has a set of libraries that support the entire process. First, you'll need to connect the Kinect to the Raspberry Pi 3. This is a little difficult because the power and USB connections on the Kinect 360 are designed to connect to the Xbox 360 and a standard power outlet. So you'll need to do some modifications to the wires.

The Kinect 360 plugs into a connector that provides a USB connector that connects to the Raspberry Pi. That's the easy part. This connection also plugs into a standard wall socket. You'll need to cut the cable that comes out of the wall socket transformer/adapter and expose the wires, like this:

There are two wires, a white and brown wire; they look like this:

The brown wire is the ground wire; you'll connect that to the ground wire on your 3S LiPo battery. The brown wires you'll connect to the 11.1V connection on your battery so that your Kinect can work remotely.