In this chapter, we will go over the parts and systems that make up robots. What are the parts of a robot? These parts will be both software (code, and other) and hardware. How do they go together? When starting to make a robot, it's valuable to think about the parts you want and how they relate to each other. I recommend you sketch a plan of your robot—a block diagram as a guide to the connected code and parts. 

In this chapter, we will be covering the following topics:

• What is inside a robot? We will take apart a robot and examine its parts
• Types of motors, sensors, and actuators - details on these robot parts
• Controllers and IO - we will look at the main controllers and input/output functions
• Planning components and code structure—we will make block diagrams to describe code, and components anywhere
• A plan of our robot—example plans of the robot we will build in this book