Make: More Electronics Learning Through Discovery [1. Aufl] 9781449344047, 1449344046

Table of contents :
Copyright......Page 4
Table of Contents......Page 7
Acknowledgments......Page 17
What You Need......Page 19
Schematics......Page 20
Organization......Page 21
If Something Doesn’t Work......Page 22
Me Informing You......Page 23
Before You Write......Page 24
A Note from the Publisher: Safari Books Online......Page 25
Regulation......Page 27
Boarding School......Page 28
Wiring......Page 30
Grabbing......Page 31
Component Storage......Page 33
Verifying......Page 34
A Glue-Based Amplifier......Page 35
What’s Happening......Page 36
Warning: Nonstandard Leads......Page 37
Background: Conductors and Insulators......Page 38
Make Even More......Page 39
Transistor Behavior......Page 41
Warning: Meter at Risk!......Page 44
Abbreviations and Datasheets......Page 45
What About the Voltage?......Page 46
Quick Facts About Voltage......Page 48
Quick Facts About Transistors......Page 49
Answers to Voltage Divider Examples......Page 50
Photosensitive Audio Pitch......Page 51
Chapter 4. Experiment 4: Measuring Light......Page 55
Background: Photons and Electrons......Page 56
Quick Facts About the 555......Page 57
Quick Facts About CMOS Versus Bipolar......Page 59
Chapter 5. Experiment 5: That Whooping Sound......Page 61
Make Even More......Page 62
Making Comparisons......Page 65
Feedback......Page 66
Hysteresis......Page 68
The Symbol......Page 69
The Output......Page 70
More Quick Facts About Comparators......Page 71
The Circuit Redrawn......Page 72
Comparisons with a Microcontroller......Page 73
Make Even More: A Laser-Based Security System......Page 74
Warning: Avoid Dangerous Voltage......Page 75
The Circuit Basics......Page 76
Step Two......Page 77
Relay Details......Page 78
Cracking a Clock......Page 79
Clock Voltage......Page 80
How It Beeps......Page 82
Using the Beeps......Page 83
How It Ought to Work......Page 85
Testing......Page 86
Warning: AC Precautions......Page 87
Make Even More......Page 88
What’s Next?......Page 89
Introducing the Electret......Page 91
Can You Hear Me?......Page 93
Ups and Downs of Sound......Page 94
Putting a Cap on It......Page 97
What’s the Difference?......Page 98
A Perfect Pair......Page 99
Measuring the Output......Page 100
An LED-Transistor Combination......Page 103
Messing with Measurement......Page 105
The Ins and Outs of Amplification......Page 106
Gain......Page 109
Background: Negative Origins......Page 110
Pushing the Limits......Page 111
Phase 1: Output Voltages......Page 112
Phase 2: Input Voltages......Page 113
Phase 4: The Gain......Page 115
Is It Right?......Page 116
The Basics......Page 117
Basic with No Split......Page 118
Quick Facts About Op-Amps......Page 120
Introducing the 386 Chip......Page 121
The Amplification Circuit......Page 122
Troubleshooting the Amplifier......Page 123
Step by Step......Page 125
Will It Really Work?......Page 126
Background: Voltage Translation......Page 128
Noise Protest, Continued......Page 129
Power Problems......Page 132
Just One More Little Thing......Page 133
Timing Is Everything......Page 135
Revision Summary......Page 137
The Noise Test......Page 138
Can You Do It with a Microcontroller?......Page 139
What’s Next?......Page 140
The Setup......Page 141
Quick Facts About Logic Chips......Page 144
Building It......Page 145
Making It Better......Page 147
Are You Ready?......Page 149
Failure Indicated......Page 150
The Untangling......Page 151
Translating the Chart......Page 152
Optimizing......Page 154
Building It......Page 156
Details......Page 158
Not So Simple?......Page 159
Could We Use a Microcontroller?......Page 160
Background: Probability......Page 161
The Logic......Page 162
Who’s On?......Page 163
Who’s Cheating?......Page 164
Background: Gate Arrays......Page 165
Background: An XNOR Made from Light Switches......Page 167
Back to the Rock......Page 168
Showing Which Button......Page 169
Cheat Proofing......Page 171
Fit to Be Tied......Page 173
Wiring It......Page 174
Conclusion......Page 177
Decoder Testing......Page 179
Boarding It......Page 183
Decoder Pinouts......Page 186
The Logic......Page 189
An Unobtainable Or......Page 191
Boarding the Simplified Scheme......Page 192
Undecoding......Page 197
Muxing It......Page 199
Jumping and Roaming......Page 200
Mux Pinouts......Page 201
Mux Applications......Page 202
Quick Facts About Mux Variants......Page 203
Game Design......Page 204
Slot Counting......Page 205
Circuit Design......Page 206
Who Wins?......Page 209
The Payoff......Page 210
Understanding the Odds......Page 211
And a Microcontroller?......Page 212
Audible XOR......Page 213
All Mixed Up......Page 214
Moving Counters......Page 217
The Logical Grid......Page 218
Using Logic......Page 219
Switching Ovid......Page 220
Making Even More......Page 221
Answer to the Puzzle......Page 222
The Five Rules of Binary......Page 223
From Bits to States......Page 225
Background: The NAND Alternative......Page 227
Breadboard Addition......Page 228
Return of the Decoder......Page 233
DIPping In......Page 234
Introducing an Encoder......Page 235
Background: The Power of Binary......Page 236
Make Even More: Other Input Options......Page 237
Make Even More: Switched Binary Adder......Page 238
Switch Specification......Page 239
Make Even More: Other Possibilities......Page 241
Annoying Pin Sequence......Page 243
Quick Facts About Headers......Page 245
Making a Game of It......Page 246
Additional Features......Page 247
Make Even More......Page 250
And a Microcontroller?......Page 251
Specifics......Page 253
A Bit-Shifting Demo......Page 254
Quick Facts About Shift Registers......Page 256
Background: Bit Streams......Page 257
Modern Applications......Page 258
Hexagrams......Page 259
The Display......Page 260
The Numbers......Page 261
Random Sampling......Page 263
The Look and Feel......Page 264
Bars or LEDs......Page 265
Boarding the Ching Thing......Page 267
Ching Usage......Page 271
Packaging......Page 272
The Little Magnetic Switch......Page 273
Reed Test......Page 274
Fuel Gauge......Page 275
Quick Facts About Reed Switches......Page 276
Background: Magnetic Polarity......Page 278
Magnetic Shapes......Page 279
Make Even More: Eddy Currents......Page 281
Warning: Magnetic Hazards......Page 282
Hall Test......Page 283
Applications......Page 285
Hall Types......Page 286
Sensor Ideas......Page 287
Plastic Bending......Page 288
Rolling-Ball Electronics......Page 289
Active Light Sensors......Page 291
Infrared Sensor Test......Page 293
Phototransistor Test......Page 295
Options......Page 296
Proof of Concept......Page 297
The Schematic......Page 299
The Breadboard......Page 300
The Slot Box......Page 301
The Logic Option......Page 305
Switching It Around......Page 306
Magnetic Issues......Page 307
Make Even More: Microcontrolling It......Page 308
Defining a Rotational Encoder......Page 311
The Pulse Train......Page 312
Encoder Usage......Page 313
It Can Be Random......Page 314
Rotational Decider......Page 315
Rotational Equivocator......Page 316
Seriously Random......Page 318
One Timer Controlling Another......Page 319
Temperature Control......Page 320
Automating the Randomizing Circuit......Page 321
Background: Lower Counting......Page 322
Speed Adjustment......Page 323
Humidity Sensor......Page 324
Touch Sensor......Page 325
Empirical Issues......Page 326
How Random Is Random?......Page 327
Getting to Know Your LFSR......Page 329
Bit-Shifting in Closeup......Page 331
The Problem with Zeroes......Page 332
The Need to Be Nonrepeating......Page 333
Warning: XNOR Idiosyncracies......Page 335
Running the Test......Page 336
Ones and Zeroes......Page 337
Skipping 254......Page 338
Sharing the Clock Input......Page 339
Make Even More: Other Games and Other Numbers......Page 340
Make Even More: Microcontroller Randomicity......Page 342
The Last Logic Diagrams......Page 345
Looking at Part 2......Page 346
Input Logic......Page 347
Two More XORs......Page 348
Timing is Everything......Page 349
Schematic Part 2......Page 351
Testing the Tester......Page 353
How Unlikely Is ESP?......Page 354
John Walker’s Probabilities......Page 355
Chapter 37. Is That All?......Page 357
Appendix A. Bibliography......Page 359
The Kit Option......Page 361
Resistors......Page 362
Capacitors......Page 363
LEDs......Page 364
Chip Family Basics......Page 365
Transistors......Page 366
Power Supply, Breadboards, and Wiring......Page 367
Minimum Shopping: Experiments 1 Through 14......Page 368
Minimum Shopping: Experiments 15 Through 25......Page 369
Minimum Shopping: Experiments 26 Through 36......Page 370
Moderate Shopping: Experiments 1 Through 14......Page 371
Moderate Shopping: Experiments 15 Through 25......Page 372
Moderate Shopping: Experiments 26 Through 36......Page 374
Maximum Shopping, Experiments 1 Through 14......Page 375
Maximum Shopping: Experiments 15 Through 25......Page 377
Maximum Shopping: Experiments 26 Through 36......Page 378
Experiment 3......Page 380
Experiment 8......Page 381
Experiment 13......Page 382
Experiment 18......Page 383
Experiment 22......Page 384
Experiment 27......Page 385
Experiment 31......Page 386
Experiment 36......Page 387
Index......Page 389
About the Author......Page 396

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