In this course, you will learn how to build a remote-controlled toy car that you can control from your smartphone via Bluetooth. The finished project is a car with basic functions for driving forward, backward, right, or left.

This is a really good project for understanding the basics of controlling a wheeled robot. And it's a great basis for experimenting with code. For example, by expanding on the code it's possible to control the speed, have smoother curves, or add cool features like spinning. Or even add sensors!