Number

10K-ohm (10KΩ) resistor, stripes on, 30

Symbols

/* and */ comments, using, 23, 35

+ (addition) symbol, using, 88

// (comments), using, 23

{} (curly braces) in Hello Blinky World, 22

/ (division) symbol, using, 88, 97

= (equals sign), using, 78

(minus) symbol, using, 87

* (multiplication) symbol, using, 88

Ω (ohms) symbol, 60

" (quote marks), including strings in, 111

A

Adafruit

Arduino Lessons, 157

soldering tutorial, 80

addition, symbol for, 88

air movement, sensing, 79–80

alarm, powering, 76

API (application programming interface), 115–116, 152–153. See also OpenWeatherMap key

Apple computers, downloading software for, 4–7

Arduino boards, verifying connection, 12–13

Arduino libraries

CapacitiveSensor, 66–67

for A Gentle Touch, 61–62

for wifi board, 105–106

Arduino Online

code, 111, 176–183

connecting with wifi board, 99–100

fixes, 109–110

function of, 110–111

ingredients, 99

loading up code, 105–107

making it go, 108

strings, 111

testserver, 112–113

wiring up parts, 104–105

The Arduino Playground, 157

Arduino setup, fixes, 13

Arduino software downloads, 18

for Linux users, 10–11

for Macs, 4

for Windows, 7

Arduino Uno

displaying as option, 12–13

Revision 3, 1–2

arduino-#.*.#-macosx.zip file, downloading and unzipping, 4–5

Arduino.app icon, displaying on desktop, 5

Arduinos

forums, 24

getting connected, 3

for Linux users, 10–11

for Mac OS X, 4–7

as open source hardware, 1

troubleshooting installation, 13

untethering, 77

for Windows users, 7–10

B

blinky world. See Hello Blinky World; Ice, Ice Blinky

board type, setting, 12

breadboard, invisible connections in, 26

buttons, triggering things with, 141–142

buzzer

polarity of, 73

stopping, 76

C

calibration, 43–44

candle. See Electric Candle

capacitance sensing, 59–60

CapacitiveSensor library, downloading, 62

charting data, 153–155

circuit diagrams. See wiring diagrams

code

Arduino Online, 105–107, 111, 176–183

and code blocks, 165

Dark-Detecting Light, 34–35, 166–167

Do I Need an Umbrella Today? 117–118, 125–126, 183–190

Electric Candle, 86–88, 172–174

A Gentle Touch, 61–64, 66–67, 170–171

Hello Blinky World, 18–20, 22–23, 166

Ice, Ice Blinky, 52, 56–58, 169–170

Invisible Ruler, 94–97, 175–176

Night Light, 41–43, 46, 168–169

Online Temperature Tracker, 146–147, 151–152, 196–199

Send Email with a Button, 130–134, 140, 190–195

sensor reading, 54

Someone Moved My Stuff! 73–74, 78, 172

website, 41

cold-water LED. See Ice, Ice Blinky

comments (//), using, 23

conductive fabric sellers, 67

connection, making, 3

constants, explained, 57–58

curly braces ({}) in Hello Blinky World, 22

D

Dark-Detecting Light

10K-ohm (10KΩ) resistor, 30

in bright light, 34

code, 34–35, 166–167

comments, 35

fixes, 33

function of, 33–35

ground, 29–30

ingredients, 25–27

integers in code, 35

loading up code, 32

in low light, 33–34

making it go, 32

pin numbers, 35

seeing sensor’s value, 36–37

sensor circuit, 32

using static resistors, 36

value of sensorValue, 36

variables in code, 35

wiring diagram, 31

wiring up parts, 27–32

data. See also online data

charting, 153–155

printing, 151–152

data account, getting for free, 147–148

data.sparkfun.com, 149–150, 153

delay() command, in Hello Blinky World, 21

distance measurement, acting on, 97

distance sensing, 91–92

division, symbol for, 88, 97

DIY sandwich, 116

Do I Need an Umbrella Today?

code, 125–126, 183–190

determining location, 120–122

DIY sandwich, 116

entering wifi information, 123

fixes, 124

function of, 124–125

ingredients, 115

loading up code, 117–118

making it go, 123–124

OpenWeatherMap key, 118–120

wiring up parts, 116–117

douseCandle() function, calling, 88–89

downloading

CapacitiveSensor library, 62

online data, 152

sketches, 165

downloading Arduino software

for Linux users, 10–11

for Macs, 4

for Windows, 7

E

Electric Candle

assembly, 85

code, 88, 172–174

fixes, 87

function of, 87–88

ingredients, 79–80

jumper wires, 84–85

loading up code, 86–87

making it go, 87

math symbols, 88

sensing air movement and wind, 79–80

soldering, 80–81

wiring up parts, 82–85

electricity, ground path for, 29

email, customizing, 140–141

email button project assembled, 130

equals sign (=), using, 78

example.com website, 110

F

fading night light, 47

fixes

Arduino Online, 109–110

Arduino setup, 13

Dark-Detecting Light, 33

Do I Need an Umbrella Today? 124

Electric Candle, 87

A Gentle Touch, 65–66

Hello Blinky World, 20

Ice, Ice Blinky, 52–53

Invisible Ruler, 95

Night Light, 45–46

Online Temperature Tracker, 150–151

Send Email with a Button, 138–139

Someone Moved My Stuff! 76

Flash memory, 125

force, sensing, 69–70, 77

forums for Arduino, 24

Fritzing. See wiring diagrams

functions, calling, 88–89

G

A Gentle Touch

accessing code for, 63–64

Arduino libraries, 59–60

capacitance sensing, 59–60

code, 66–67, 170–171

detecting touch, 59–60

fixes, 65–66

if-then code, 65–66

ingredients, 59

loading up code, 61–65

making it go, 65

parts, 60

wiring up parts, 60–61

Genuino, explained, 12

Get Your Arduino Online. See Arduino Online

glowing toys, 41, 45

ground in circuit, explained, 30

H

Hackster.io Arduino Projects, 157

headers, soldering onto wifi board, 100–104

Hello Blinky World

// (comments), 23

code, 166

delay() command, 21

fixes, 20

function of, 21

holes vs. pins, 17

ingredients, 15

loading up code, 18–20

loop() section, 21

voidloop() section, 22–23

voidsetup() section, 22–23

wiring diagram, 16

wiring up parts, 16–18

help, accessing for Arduino setup, 13

HIGH signal, sending to Ping sensor, 95

holes vs. pins, 27

hometown, getting coordinates for, 121

I

Ice, Ice Blinky

code, 56–57, 169–170

constants, 57–58

determining temperature, 55–56

fixes, 52–53

floating point numbers, 57

function of, 53

improving LED, 56

ingredients, 49

loading up code, 52

making it go, 52

seeing sensor reading, 54

sending and sensing power, 56–57

temperature sensing, 49

wiring up parts, 50–51

if-then code

for acting on distance measurement, 97

adding to LED, 56

in A Gentle Touch, 65–66

IFTTT (If This Then That), 128, 136–137. See also Send Email with a Button

IFTTT account, making, 131–133

IFTTT toolbar, using, 133–136

ingredients

Arduino Online, 99

Arduino setup, 1

Dark-Detecting Light, 25

Do I Need an Umbrella Today?, 115

Electric Candle, 79

A Gentle Touch, 59

Hello Blinky World, 15

Ice, Ice, Blinky, 49

Invisible Ruler, 91

kits, 159–160

Night Light, 39

Online Temperature Tracker, 143

parts, 160–162

Send Email with a Button, 127

Someone Moved My Stuff!, 69

input and output, 56–57

installing Arduino software

getting help with, 13

for Linux users, 10–11

for Mac OS X, 4

for Windows, 7–10

integers in code, 35

Internet, connecting to, 99–100

Invisible Ruler

code, 96–97, 175–176

distance sensing, 91–92

fixes, 95

function of, 95

ingredients, 91

loading up code, 94–95

making it go, 95

pins on Ping sensor, 92

sensing speed of sound, 96

wiring up parts, 92–93

J

jaguar, 75–76

L

LatLong.net, accessing, 121

LED (light-emitting diode)

adding if-then code to, 56

fixing for Ice, Ice Blinky, 52–53

for Hello Blinky World, 16

length of “legs,” 17

lighting up, 97

quirk, 17

turning off and on, 21

LED pin, setting to LOW, 89

ledPin, declaring, 56–57

libraries, defined, 61

light, sensing, 25–27, 39–40

links and code. See code; websites

Linux users, Arduinos for, 10–11

location, determining for Do I Need an Umbrella Today? 120–122

long, beginning functions with, 96–97

M

Mac OS X, Arduinos for, 4–7

math symbols, 88

memory, sections of, 125–126

Microsoft Windows users, Arduinos for, 7–10

minus, symbol for, 87

multiplication, symbol for, 88

N

Night Light

calibration, 43–44

code, 46, 168–169

fading, 47

fixes, 45–46

ingredients, 39

loading up code, 41–43

making it go, 44

wiring diagram, 40

wiring up parts, 40–41

O

ohms (Ω) symbol, 60

online

getting, 99–100

logging and charting sensor data, 143–144

triggering things, 127–128

online data, downloading, 152. See also data

Online Temperature Tracker. See also temperature

API (application programming interface), 152–153

charting data, 153–155

code, 151–152, 196–199

downloading data, 152

fixes, 150–151

function of, 151

getting data account for free, 147–148

ingredients, 143

inserting wifi info, 148

loading up code, 146–147

making it go, 149–150

positioning wifi shield, 145

thermistor, 145–146

wiring up parts, 144–146

OpenWeatherMap key, getting for free, 118–120. See also API (application programming interface)

output, declaring ledPin as, 56–57

P

photoresistor. See also resistors

bringing power to, 28

using, 25–26

pin numbers, reassigning, 35

Ping sensor

pins on, 92

sending HIGH signal to, 95

pins

vs. holes, 17, 27

on Ping sensor, 92

plastic, making pressure sensitive, 77

Plot.ly website, 153

port, setting, 12

pow, explained, 88

power, sending and sensing, 56–57

power supply

purchasing, 77

wiring up, 89

pressure-sensitive plastic, 77

printing data, 151–152

project sources, 157

pulseIn() function, 96

Q

quote marks ("), including strings in, 111

R

reading information online, 115–116

resistance, detecting changes in, 49

resistors. See also photoresistor

pairing sensors with, 85

tinkering with, 36

values, 60, 66

ruler. See Invisible Ruler

S

Send Email with a Button. See also IFTTT (If This Then That)

code, 140, 190–195

customizing, 140–141

entering wifi information, 128–131

fixes, 138–139

function of, 139

if-then alternatives, 141–142

ingredients, 127

Maker Channel info, 136–137

making it go, 137–138

setting up IFTTT, 131–136

untethering, 140

wiring up parts, 128–131

sensing

air movement and wind, 79–80

distance, 91–92

force, 69–70, 77

light, 25–27, 39–40

speed of sound, 96

sensor circuit, 32

sensor data, logging and charting online, 143–144

sensor reading, seeing for Ice, Ice Blinky, 54

SENSORPIN, making into constant, 57–58

sensorValue, watching value of, 36–37

Serial Monitor, turning on, 43

sheep glowing, 45

shields, explained, 99

sketches

Arduino Online, 176

Dark-Detecting Light, 166

Do I Need an Umbrella Today? 183

downloading, 42, 165

Get Your Arduino Online, 176

Hello Blinky World, 166

Ice, Ice Blinky, 169

Invisible Ruler, 175

Night Light, 168

Online Temperature Tracker, 196

Send Email with a Button, 190

smart objects, 1–2, 18, 39, 91, 99, 127, 153, 157, 159–160, 162

software. See Arduino software downloads

soldering

Electric Candle, 80–81

headers onto wifi board, 100, 104

Someone Moved My Stuff!

code, 78, 172

equals sign (=), 78

fixes, 76

ingredients, 69

loading up code, 73–74

making it go, 75–76

powering alarm, 76

pressure-sensitive plastic, 77

sensing force, 69–70

untethering Arduino, 77

wiring up parts, 70–73

sound, sensing speed of, 96

SparkFun WiFi Shield, ordering, 100

SRAM (static random-access memory), 125–126

starting Arduino software, 18

static resistors

colored bands on, 60

using, 36

Stoffregen, Paul, 62

strings, using with Arduino Online, 111

subtraction, symbol for, 88

T

temperature. See also Online Temperature Tracker

determining, 55–56

sensing, 49

temperature sensor

position of, 50

wiring to Arduino, 51

testserver, explained, 112

thermistors

explained, 49

wiring for Online Temperature Tracker, 145–146

TMP36 thermistor, 49

tools, 162

touch, detecting, 59–60

toys

glowing, 41

jaguar, 75–76

sheep glowing, 45

trigger signal. See Send Email with a Button

troubleshooting. See fixes

U

umbrella project. See Do I Need an Umbrella Today?

upload arrow, identifying, 19

V

variables, explained, 35, 57

Velostat, buying, 77

voidloop() section

in Dark-Detecting Light, 33

in Hello Blinky World, 21–23

voidsetup() section in Hello Blinky World, 22–23

W

weather forecast. See Do I Need an Umbrella Today?

websites

Arduino forums, 24

Arduino library, 62

Arduino software, 4, 7, 10

code and code blocks, 165

conductive fabric sellers, 67

decoder table for static resistor, 60

Do I Need an Umbrella Today? 117–118

downloading Arduino software, 4

Electric Candle, 86

example.com, 110

A Gentle Touch code, 63

IFTTT (If This Then That), 131

installation help, 13

Invisible Ruler, 94

links and code, 41

online data account, 147

Online Temperature Tracker, 146

parts and ingredients, 2, 60

Plot.ly, 153

power supply, 77, 89

resistor values, 66

Send Email with a Button, 130–134

sketches, 42

soldering irons and tutorial, 80, 100

Someone Moved My Stuff! 73

SparkFun WiFi Shield, 100

temperature, 55–56

thermistors, 49

troubleshooting Arduino installation, 13

Velostat, 77

wifi board

connecting to Internet with, 99–100

getting Arduino library for, 105–106

pressing onto Arduino, 105

soldering headers onto, 100, 104

wifi information

Do I Need an Umbrella Today? 123

Online Temperature Tracker, 148

Send Email with a Button, 131

wifi service, 162–163

wind, sensing, 79–80

Windows users, Arduinos for, 7–10

wiring diagrams

Dark-Detecting Light, 31

Electric Candle, 82–85

force sensor project, 71

A Gentle Touch, 60

Hello Blinky World, 16–18

Invisible Ruler, 93

Night Light, 40

Online Temperature Tracker, 144

Send Email with a Button, 128

Z

.zip files, managing, 62