August 2010
Intermediate to advanced
288 pages
13h 21m
English
Content preview from The Art of LEGO MINDSTORMS NXT-G Programming
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dealing with broken wires
As you are writing your program, it’s possible to connect a data wire in such a way that it won’t work correctly. A data wire that is not connected properly is known as a broken wire. A broken wire is shown as a dashed, gray line (as shown in Figure 8-37) to let you know that the program has a problem.
Figure 8-37. A broken wire
A data wire can appear broken for the following reasons:
The data types of the two plugs do not match. For example, you can’t connect the Tone Frequency output plug from the Sound block (a number) to the Display block’s Text plug. Instead of connecting these two data plugs directly, you need to use ...
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