We started this chapter by introducing the Brick Program application, a tool which allows us to write visual programs on the brick itself. In the process, you learned about all of the blocks that are available to us and how to use them to construct program sequences.

We built a number of sample programs of increasing complexity in a bid to gain a greater understanding of the programming blocks and the visual programming language itself; this included the use of motors, sensors, buttons, LEDs, the LCD screen, and the speaker.

This led up to the construction of a fully autonomous obstacle-avoiding robot, built stage by stage according to predetermined specifications.

The chapter ends with a discussion on the limitations and shortcomings of this visual approach to programming EV3 and the promise of a powerful alternative, which will be the focus of the remainder of this book. The next chapter will introduce the alternative, LeJOS, and will teach you how to install it.