Practical Arduino: Cool Projects for Open Source Hardware

"Learn in-depth Arduino techniques using real-world projects"--Cover.

Create your own Arduino-based designs, gain in-depth knowledge of the architecture of Arduino, and learn the user-friendly Arduino language all in the context of practical projects that you can build yourself at home. Get hands-on experience using a variety of projects and recipes for everything from home automation to test equipment. Arduino has taken off as an incredibly popular building block among ubicomp (ubiquitous computing) enthusiasts, robotics hobbyists, and DIY home automation developers. Authors Jonathan Oxer and Hugh Blemings provide detailed instructions for building a wide range of both practical and fun Arduino-related projects, covering areas such as hobbies, automotive, communications, home automation, and instrumentation. * Take Arduino beyond "blink" to a wide variety of projects from simple to challenging * Hands-on recipes for everything from home automation to interfacing with your car engine management system * Explanations of techniques and references to handy resources for ubiquitous computing projects Supplementary material includes a circuit schematic reference, introductions to a range of electronic engineering principles and general hints & tips. These combine with the projects themselves to make Practical Arduino: Cool Projects for Open Source Hardware an invaluable reference for Arduino users of all levels. You'll learn a wide variety of techniques that can be applied to your own projects. What you'll learn * Communication with serial devices including RFID readers, temperature sensors, and GPS modules * Connecting Arduino to Ethernet and WiFi networks * Adding synthesized speech to Arduino * Linking Arduino to web services * Decoding data streams from commercial wireless devices * How to make DIY prototyping shields for only a couple of dollars Who this book is for This book is for hobbyists and developers interested in physical computing using a low-cost, easy-to-learn platform. Table of Contents * Introduction * Appliance Remote Control * Time-Lapse Camera Controller * Virtual USB Keyboard * PS/2 Keyboard or Mouse Input * Security/Automation Sensors * Online Thermometer * Touch Control Panel * Speech Synthesizer * Water Flow Gauge * Oscilloscope/Logic Analyzer * Water Tank Depth Sensor * Weather Station Receiver * RFID Access Control System * Vehicle Telemetry Platform * Resources

Contents at a Glance		iv
Contents		v
About the Authors		xvi
About the Technical Reviewers		xvii
Acknowledgments		xix
Introduction		xx
Introduction		1	(16)
Fundamentals		1	(1)
Sharing Your Work		1	(1)
Practical Electronics for Software Developers		1	(16)
Current, Voltage, and Power		2	(1)
Mains Is Nasty		2	(1)
Reading Schematics		3	(3)
Resistance and Resistors		6	(1)
Ohm's Law and Current Limiting		7	(1)
Choosing Wire		8	(1)
Diodes		8	(1)
Power Supplies		9	(1)
USB Power		9	(1)
Batteries		10	(1)
Wall Warts/Plugpacks		11	(1)
Capacitance and Capacitors		11	(1)
Fundamentals		11	(1)
Capacitor Types		12	(1)
Power Supply Bypass		13	(1)
ESD Precautions		13	(1)
Tools		13	(1)
Parts		14	(1)
Further Reading		15	(2)
Appliance Remote Control		17	(20)
Parts Required		17	(2)
Instructions		19	(15)
Test and Investigate Appliance Remote		19	(2)
Assemble Reed Relay Shield		21	(4)
Connect Reed Relay Shield to Remote Control		25	(2)
Create Reed Relay Control Program		27	(1)
ApplianceRemoteControl		27	(3)
ApplianceRemoteControlCompact		30	(2)
Test Reed Relay Shield and Sketch		32	(2)
Variations		34	(3)
Wireless Link		34	(1)
Automatic Trigger		34	(1)
Socket Connections		35	(2)
Time-Lapse Camera Controller		37	(14)
Parts Required		37	(2)
Instructions		39	(10)
Assemble Prototyping Shield		39	(1)
Connect Camera Shutter Release		39	(1)
Remote Shutter Release Connector		40	(2)
Infrared Remote Control		42	(1)
Modify Camera		43	(1)
Configure Camera		44	(1)
Calculate Photo Interva		44	(1)
Configure and Load Sketch		44	(4)
Check Memory Capacity		48	(1)
Set Up Your Shoot		48	(1)
Process the Images		48	(1)
Linux		48	(1)
Windows		48	(1)
Macintosh		49	(1)
Variations		49	(2)
Virtual USB Keyboard		51	(12)
Parts Required		51	(2)
Instructions		53	(8)
Populate Prototyping Shield		53	(3)
Prepare the UsbKeyboard Library		56	(1)
Compile and Upload Sketch		57	(4)
Variations		61	(2)
Chording Keyboard		61	(2)
PS/2 Keyboard or Mouse Input		63	(18)
Parts Required		63	(1)
Instructions		64	(16)
PS/2 Connections		65	(1)
Recycled 6-Pin Mini-DIN Sockets		66	(1)
6-Pin Mini-DIN Panel Sockets		67	(2)
PS/2 Extension Cable		69	(4)
Keyboard Software		73	(3)
Mouse Software		76	(3)
Variations		79	(1)
Barcode Reader for a Stock Control System		79	(1)
Resources		80	(1)
Security/Automation Sensors		81	(20)
Parts Required		82	(2)
Instructions		84	(14)
Security Sensor Basics		84	(3)
Assemble Four-Channel Alarm Sensor Shield		87	(5)
Install End-of-Line Resistors on Sensor		92	(3)
Load Test Program		95	(3)
PIR Placement		98	(1)
Variations		98	(3)
Visual Display Written in Processing		98	(1)
Home Security System		99	(1)
Multiple Buttons on One Input		99	(2)
Online Thermometer		101	(20)
Parts Required		101	(2)
Instructions		103	(5)
Mount PCB Plugs on Shield		103	(2)
Connect Data Lines		105	(1)
Assemble Sensors		106	(2)
Load Program		108	(11)
Variations		119	(2)
Touch Control Panel		121	(18)
Parts Required		122	(1)
Instructions		123	(16)
How Resistive Touch Screens Work		123	(3)
Basic Touch Screen Connection Test		126	(2)
Arduino TouchScreen Library		128	(1)
Controlling a ``Processing'' Program		128	(3)
Construct Hardware for Home Automation Control Panel		131	(3)
Calibrate Hot Zones		134	(3)
Mount Arduino		137	(2)
Speech Synthesizer		139	(24)
Parts Required		140	(2)
Instructions		142	(18)
Speech Output Signal		142	(1)
Beginning Assembly		143	(1)
SpeakJet PWM ``Audio'' Output		144	(1)
Quick Test		145	(1)
Fit Status Indicators		145	(3)
Making a Line-Level Output Cable		148	(1)
On-Board Amplifier		149	(2)
Speech Synthesizer Software		151	(2)
Create Your Own Messages		153	(7)
Variations		160	(1)
Read SpeakJet Status		160	(1)
Resources		161	(2)
Water Flow Gauge		163	(22)
Parts Required		164	(1)
Instructions		165	(19)
Replace Sensor Connector		165	(1)
Prepare Prototyping Shield		166	(2)
Prepare LCD Module		168	(3)
Fit LCD to Case		171	(2)
Fit Arduino in Case		173	(1)
Determine Scaling Factor		174	(1)
Configure, Compile, and Test Sketch		175	(1)
Hardware Interrupts		175	(1)
Volatile Variables		176	(2)
Flow Gauge Sketch		178	(5)
Install Flow Sensor		183	(1)
Variations		184	(1)
Online Logging		184	(1)
Multiple Sensors		184	(1)
Resources		184	(1)
Oscilloscope/Logic Analyzer		185	(24)
Parts Required		187	(2)
Instructions		189	(20)
Assemble the Case		190	(3)
Fit the Prototyping Shield		193	(1)
Make Test Probes		194	(1)
How Successive Approximation ADC Works		194	(3)
Connection to Circuit under Test		197	(1)
Install Software in Arduino		198	(1)
Analog Read Version		198	(2)
Digital Read Version		200	(2)
Digital Read Sketch with Optimized Communications Format		202	(1)
Install Processing and Run Visualization Program		203	(2)
Variations		205	(1)
Input Voltage Prescaler		205	(1)
Resources		206	(3)
Water Tank Depth Sensor		209	(30)
Parts Required		210	(2)
Instructions		212	(24)
Assemble the Shield		213	(2)
Determine Sensor Installation Method		215	(4)
Assemble the Sensor Housing		219	(4)
Assemble the Arduino Housing		223	(3)
Install the WiShield Library and Driver		226	(1)
Load the Tank-Level Sketch		227	(4)
Prettier Web Interface		231	(3)
Calibrating the ``Empty Tank'' Level		234	(1)
Install the Sensor and Arduino		235	(1)
Calibrating the ``Full Tank'' Level		236	(1)
Variations		236	(3)
Upload Data to Pachube		236	(1)
Control Pumps or Irrigation		236	(1)
Local Level Display		237	(1)
Reading Multiple Tanks		237	(2)
Weather Station Receiver		239	(30)
Parts Required		241	(2)
Instructions		243	(24)
Test and Install the Weather Station		243	(1)
Understanding the Circuit		243	(3)
Assemble the Receiver Shield		246	(4)
Weather Station Receiver Program		250	(15)
Twitter Weather Updates		265	(2)
Variations		267	(2)
Private Online Weather Station		267	(2)
RFID Access Control System		269	(26)
Parts Required		272	(2)
Instructions		274	(18)
Assemble the Prototyping Shield		275	(1)
Power Supply		275	(2)
RFID Serial Connection		277	(1)
Relay Output		278	(2)
Indicator LEDs		280	(2)
Manual Release Button		282	(1)
Assemble the ID-12 Reader Module		282	(2)
Assemble the RDM630 Reader		284	(1)
Simple Stand-Alone Sketch		285	(6)
Install the Strike Plate		291	(1)
Install the Reader		291	(1)
Install the Arduino		292	(1)
Variations		292	(2)
Extensible Read Head		292	(1)
Speech Synthesizer Feedback		293	(1)
Intelligent Desk Pad		294	(1)
Resources		294	(1)
Vehicle Telemetry Platform		295	(88)
Parts Required		298	(3)
Instructions		301	(79)
Check the Vehicle Interface		301	(1)
Obtain a USB/OBD-II or RS-232 Adapter		302	(1)
Test the USB/OBD-II Adapter		303	(1)
Understanding OBD-II Modes and Parameters		304	(4)
Prepare the USB/OBD-II Adapter		308	(5)
Assemble the OBD-II Cable		313	(1)
Prepare the GPS Module		314	(5)
Assemble the Power Supply on the Shield		319	(4)
Fit the Serial Connections on the Shield		323	(1)
Prepare the VDIP1 Module		324	(4)
The LCD Module		328	(3)
Logging Control Button and Status LEDs		331	(1)
Mount in Sub-Assemblies in the Case		332	(6)
OBDuino Mega Sketch		338	(1)
OBDuinoMega.pde		339	(27)
LCD.pde		366	(4)
GPS.pde		370	(1)
VDIP.pde		371	(1)
Host.pde		372	(3)
PowerFail.pde		375	(1)
Using the OBDuinoMega Sketch		376	(1)
Menu Buttons		376	(2)
Running Logging		378	(2)
Generate Google Earth Track		380	(1)
Generate Charts of Parameters		380	(1)
Variations		380	(2)
Mobile Internet Connection		381	(1)
Vehicle Control		381	(1)
Speech Synthesizer Output		381	(1)
3D Accelerometer		381	(1)
Digital Compass		381	(1)
``Knight Rider''--Style Alarm Status		381	(1)
Battery Condition Check		382	(1)
Resources		382	(1)
Resources		383	(22)
Simple Voltage Regulators		383	(1)
Power Dissipation		384	(1)
Dropout Voltage		384	(1)
Efficiency		384	(1)
Driving LEDs		384	(4)
Multiplexing		385	(2)
Charlieplexing		387	(1)
Output Circuitry and Isolation		388	(5)
Semiconductor and Mechanical Switches		389	(1)
Reed Relays		389	(1)
Relays		390	(1)
Bipolar Transistors		391	(1)
Transistor Arrays		392	(1)
FETs		392	(1)
Optocouplers		393	(1)
Solid State Relays		393	(1)
Digital Input/Output Expansion		393	(3)
Shift Registers As Outputs		393	(2)
Shift Registers As Inputs		395	(1)
Input Conditioning		396	(3)
Voltage Dividers and Nonisolated Input Conditioning		396	(2)
Isolated Input Conditioning		398	(1)
Inexpensive DIY Prototyping Shields		399	(2)
Writing an Arduino Library		401	(4)
Develop Functionality As a Sketch		402	(1)
Create the Library Header File		403	(2)
Create the Library Class File		405	(2)
Create the Example Sketch		407	(1)
Create Supporting Files		408	(1)
Platform-Specific Variations		409	(1)
Summary		409
Index		405