By now, you should be feeling a bit more comfortable with configuring HW and writing code for Arduino. Hopefully, your wheeled platform is moving around and is controlled by Arduino. You've learned the basics of DC motor control, and in the process, you also learned how to send control signals to the external hardware.

In the next chapter, you'll change this platform from one based on DC motors to one based on servos, and you'll build a robot that can walk.