Build and Program Your Own LEGO Mindstorms EV3 Robots

156 Zoom 156 The Content Editor 156 The Programming Canvas, Blocks, and the Palette 158 The Connection Area 159 Writing Your First Program 159 Flowcharting 160 Dragging Blocks Onto the Programming Canvas 161 Changing Modes 162 Checking Your Ports 164 Making the Bot Move 165 Moving the Wheels 166 Controlling Bot Direction 167 Adjusting Motor Power and Speed 168 Adjusting Rotation Count 168 Connecting Your EV3 to Your Computer 169 Making Decisions and Using Loops 172 Saving Your Changes 178 Alternative Programs 179 Summary 179 Chapter 8 More MINDSTORMS Programming: The Line-Following Robot 181 What Is a Program? 181 Project: The Line-Following Robot 183 Getting Started 184 Making Your Own Test Track 185 Thinking About the Instructions 187 Finding Direction 188 Calibrating the Sensor 189 Creating the Program 194 Creating New Variables 194 Calculating with Variables 200 Improving the Program with Feedback 202 Troubleshooting Your Program 206 Adding a Countdown 209 Using a Loop to Make the Robot Follow the Line 211 Adding Switches for Steering 213 Creating Custom Blocks 216 Documenting Your Work 219 Summary 219 Chapter 9 Engineering the Floor-Cleaning Robot 221 Programming a Collision-Avoiding Robot 221 Activating the Touch Sensor 223 Adding Collision Avoidance 224 Testing Your Bot 227 Navigating Corners 228 Adding a Bit of Randomness 229 Using the Education Edition's Ultrasonic Sensor 232 Controlling Your Bot with the Infrared Remote 235 Programming the Remote 236 Creating Multi-threaded Programs 241 Adding the Floor-Cleaning Functions 245 Building the Mophead Assembly 246 Adjusting the Sensor Assembly 250 Building the Floor Cleaning Program 253 Summary 256 Chapter 10 The Color Magic Card Trick 257 Brainstorming and Building the Bot 258 Building the Platform 261 Raising the Platform 265 Building the Wheel Assembly 267 Checking the Assembly 269 Placing the Intelligent Brick 270 Controlling the Cards 272 Calibrating the Color Sensor 280 Creating the Program 282 Detecting the Color 284 Playing the Sound 287 Adding the Motor Block 288 Summary 289 Chapter 11 Daisy-Chaining Projects 291 The Daisy-Chain Test 291 Numbering Your Bricks 292 Programming the Test 295 Building a Daisy-Chained Robot Car 297 Assembling the Wheels 297 Programming the Bot 307 Adding a Remote Control 309 Adding Collision Avoidance 317 Messaging Between Robots 320 Adding "Magic" to the Card Trick 321 Configuring the Sending Program 321 Configuring the Receiving Program 323 Running the "Magic" 325 Summary 325 Chapter 12 Extending Play 327 Installing leJOS 327 Preparing Your Desktop 328 Loading the SD Card 330 Working in LeJOS 333 Community-Created Models 334 DINOR3X 335 EL3CTRIC GUITAR 336 EV3D4 337 EV3MEG 338 MR B3AM 339 KRAZ3 340 RAC3R 341 EV3GAME 342 WACK3M 344 BANNER PRINT3R 344 Finding More Communities 345 Scoring Extra LEGO Parts 346 Tetrix 346 K'nex 346 Erector Sets 346 3D Printers 346 Robotics Competitions 347 First Robotics LEGO League 347 World Robot Olympiad 347 4-H 347 Decorating Your EV3 348 Summary 348 Appendix: Glossary 349 Index 363