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LEGO MINDSTORMS NXT-G Programming Guide
of: James Floyd Kelly
Apress, 2007
ISBN: 9781430203032 , 196 Pages
Format: PDF, Read online
Copy protection: DRM
Contents at a Glance
5
Contents
7
About the Author
11
About the Technical Reviewer
12
Acknowledgments
13
Introduction
14
Robots and Programs
15
What Is a Robot?
15
What Is a Program?
15
NXT- G
18
Program Structure
21
What Do I Mean by Structure?
21
Hello World!
24
The DISPLAY Block
24
Data Hubs
29
Get Movin’
33
The MOVE block
33
Record and Play Back
41
Make Some Noise!
45
The SOUND Block
45
Wired!
50
Passing Around Information
50
True or False?
58
One or the Other
58
Feedback
63
What’s Your Condition?
63
Configuring the Sensors
64
Other Input Types
70
Using the Blocks
71
Wait for It!
73
The WAIT Block
73
Round and Round
81
Do It Again and Again and Again . . .
81
Nested Loops
88
Decisions, Decisions
92
Left or Right? Door 1 or Door 2?
92
Stop It
104
The STOP Block
104
Pick a Card, Any Card
107
The RANDOM Block
107
The NUMBER TO TEXT Block
109
Apples and Oranges
112
The COMPARE Block
112
Inside or Out?
122
The RANGE Block
122
Yes? No? Maybe?
131
The LOGIC Block
131
Title = Anything You Like
138
The VARIABLE Block
138
Basic Text
151
The TEXT Block
151
Basic Math
155
The MATH Block
155
Staying Alive
158
The KEEP ALIVE Block
158
Your Own Filing Cabinet
160
The FILE ACCESS Block
160
Calibration
166
The CALIBRATE Block
166
Get Reset
170
The RESET MOTOR Block
170
Messages
173
The SEND MESSAGE Block
173
My Block Is Your Block
178
Creating a My Block
178
Math Basics for NXT
185
Converting Between Degrees and Rotations
185
Converting Degrees and Rotations into Distances
186
The X/ Y Coordinate System in NXT
187
Index
189
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