Make – Getting Started with the Photon

Make – Getting Started with the Photon
Making Things with the Affordable, Compact, Hackable WiFi Module
Simon Monk
Foreword by Zach Supalla
Contents
Foreword . vii
Preface . ix
1/The Photon . 1
The Internet of Things 1
Sparks in the Clouds . 2
Other IoT Platforms 3
Arduino . 4
Raspberry Pi and BeagleBone . 6
Intel Edison 6
A Tour of the Photon . 7
The Spark Core vs. Photon 9
Programming . 10
Summary 11
2/Quick Start 13
Signing Up . 13
Connecting to WiFi 13
Connecting a Core . 14
Connecting a Photon . 17
Controlling Pins with the Tinker App 24
Project 1. Blink the Tiny Blue LED . 24
Project 2. Control the Photon’s LED 27
Summary 29
3/Programming the Photon 31
The Web IDE . 31
Coding an App . 33
Comments . 37
Variables 38
Morse Code 39
Flashing SOS . 40
Functions 44
iiiTypes . 46
The int Type 48
The float Type . 48
Other Types . 49
Arrays 49
Loops . 51
Strings 53
Ifs 54
Project 3. Morse Code Flasher 55
Software 55
Summary 58
4/Breadboard 59
How a Breadboard Works 61
Attaching an LED . 62
Digital Outputs . 63
Project 4. Morse Flasher (External LED) . 64
Parts . 64
Hardware . 64
Software 66
Attaching a Switch 67
Digital Inputs . 68
Project 5. Morse Flasher with Switch . 69
Parts . 69
Software 70
Hardware . 71
Running the Project 72
Analog Outputs . 73
analogWrite . 74
An Example . 74
A Real Analog Output . 76
Summary 77
5/The Internet of Things 79
Functions 79
Project 6. Control an LED over the Internet 81
Software 82
Security 83
Trying It Out 85
Interacting with loop 86
Running Functions from a Web Page . 88
iv ContentsProject 7. Control Relays from a Web Page 91
Parts . 93
Design . 95
Construction 95
Software 97
Project 8. Morse Code Text Messages . 103
Parts 104
Software . 104
Hardware 108
Using the Project . 109
Variables . 109
Analog Inputs . 110
Project 9. Measuring Light over the Internet 114
Parts 114
Software . 115
Hardware 117
Using the Project . 120
Project 10. Measuring Temperature over the Internet 120
Parts 121
Software . 122
Hardware 124
Using the Project . 125
Summary . 127
6/If This Then That 129
If This Then That . 129
Project 11. Temperature Email Alerts . 129
Project 12. Ring a Bell for Tweets 137
Software . 138
IFTTT . 139
Hardware 140
Using the Project . 141
Project 13. Flash Email as Morse Code 141
Software . 142
Hardware 142
IFTTT . 142
Using the Project . 143
Summary . 143
7/Robotics 145
Project 14. Web-Controlled Robot 145
Parts 147
Contents vSoftware (Photon) . 147
Software (Web Page) 150
Hardware 152
Using the Project . 154
Summary . 155
8/Machine-to-Machine Communication . 157
Publish and Subscribe 157
Temperature Monitor Example . 158
IFTTT and Publish/Subscribe 162
Advanced Publish and Subscribe . 163
Publish 163
Subscribe 163
Project 15. Magic Rope . 164
Parts 166
Software . 167
Hardware 169
Using the Project . 173
Summary . 173
9/Advanced Photon 175
Configuring a Photon Using USB 175
Factory Reset . 178
Programming a Photon Using Particle Dev . 179
Debugging with the Serial Monitor 179
The Electron 180
Power Management 181
Summary . 181
A/Parts 183
B/Photon LED Codes . 187
C/Photon and Core Pinouts . 189

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