Chapter 8. data wires

In this chapter, you’ll learn how to use data wires to pass information from one block to another. Using data wires, you’ll be able to change a block’s settings while a program is running, and you’ll be able to modify a sensor’s value before it’s used by another block. Data wires are one of the most powerful features of the NXT-G language, and learning how to use them will greatly enhance your skill as a programmer.

I’ll begin with a simple example to show you what a data wire is and how it works. Most of the remainder of the chapter is devoted to developing a fairly complex program that turns the TriBot into a sound generator. Along the way, I’ll cover all the basic concepts you need in order to successfully use data wires ...

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