In this chapter, you've been able to see a number of the different component parts that go into a robot, and through a block diagram as a plan, start to visualize how you'd combine those blocks to make a whole robot. You've seen how you can quickly sketch your robot ideas on an envelope, and that drawing tools on a computer can be used for a neater version of the same diagram.
You've had a quick tour of motors, sensors, and controllers, along with a few ways, such as analog, digital, PWM, and databuses, for controllers to communicate with the other devices connected to them.
Following on from this, you've seen a plan of the robot we will build in this book.