Make: getting started with sensors: Measure the World With Electronics, Arduino, and Raspberry Pi

✍ Scribed by Karvinen, Tero;Karvinen, Kimmo

• Publisher: Maker Media, Inc; Oreilly & Associates Inc
• Year: 2014
• Tongue: English
• Leaves: 140
• Edition: First edition
• Category: Library

✦ Synopsis

To build electronic projects that can sense the physical world, you need to build circuits based around sensors: electronic components that react to physical phenomena by sending an electrical signal. Even with only basic electronic components, you can build useful and educational sensor projects.

But if you incorporate Arduino or Raspberry Pi into your project, you can build much more sophisticated projects that can react in interesting ways and even connect to the Internet. This book starts by teaching you the basic electronic circuits to read and react to a sensor. It then goes on to show how to use Arduino to develop sensor systems, and wraps up by teaching you how to build sensor projects with the Linux-powered Raspberry Pi.

✦ Table of Contents

Copyright......Page 4
Table of Contents......Page 5
Preface......Page 9
What Sensors to Buy?......Page 10
Using Code Examples......Page 11
How to Contact Us......Page 12
Acknowledgments......Page 13
Chapter 1. Sensors......Page 15
Project 1: Photoresistor to Measure Light......Page 17
Parts......Page 18
Build It......Page 19
Discussion: Photoresistors......Page 20
Going Forward......Page 21
Parts......Page 23
Build It......Page 24
Troubleshooting......Page 25
Project 3: Buzzer Volume Control......Page 26
Build It......Page 27
Project 4: Hall Effect......Page 28
Build It......Page 29
Integrated Circuits......Page 31
555 Timer IC......Page 32
Light Up an LED When It’s Bright......Page 33
Light to Darkness......Page 35
Transistors......Page 36
Fading an LED......Page 38
555 Fading Blink......Page 39
Capacitors......Page 42
Firefly......Page 43
Chapter 3. Sensors and Arduino......Page 47
Parts......Page 48
Run the Code......Page 49
Pull-Up Resistors and Arduino......Page 51
Project 7: Infrared Proximity to Detect Objects......Page 54
Parts......Page 55
Build It......Page 56
Project 8: Rotation (Pot)......Page 57
Parts......Page 59
Run the Code......Page 60
Parts......Page 61
Build It......Page 62
Project 10: FlexiForce to Measure Pressure......Page 63
Build It......Page 64
Run the Code......Page 65
Project 11: Measuring Temperature (LM35)......Page 66
Build It......Page 67
Run the Code......Page 69
Project 12: Ultrasonic Distance Measuring (HC-SR04)......Page 70
Build It......Page 71
Run the Code......Page 72
Conclusion......Page 75
Chapter 4. Sensors and the Raspberry Pi......Page 77
Build It......Page 78
Run the Button Code......Page 80
Troubleshooting......Page 81
Hello, Python World......Page 82
Build the LED Blink Project......Page 83
Run the Code......Page 84
Build the IR Switch Project......Page 87
Run the Code......Page 88
Voltage Divider......Page 90
Project 16: Potentiometer to Measure Rotation......Page 91
Install SpiDev......Page 92
Allow SPI Without root......Page 93
Run the Code......Page 94
Parts......Page 96
Playing with Resistance Numbers......Page 97
Build It......Page 99
Build It......Page 100
Run the Code......Page 101
Parts......Page 103
Run the Code......Page 104
Real Time or Fast?......Page 106
Appendix A. Troubleshooting Tactics......Page 109
Ubuntu Linux......Page 111
OS X......Page 112
Hello, World......Page 113
Parts......Page 115
Prepare the Memory Card......Page 116
Install Raspbian......Page 117
Boot to Desktop......Page 118
Using Raspberry Pi......Page 119
Python Programming......Page 121
Welcome to the Command Line......Page 122
Take Over an Onboard LED......Page 123
Parts......Page 124
Building the Circuit......Page 125
Troubleshooting......Page 127
Using GPIO Without Root......Page 128
Chapter 2......Page 131
Chapter 3......Page 133
Chapter 4......Page 134
Index......Page 137
About the Authors......Page 140