Raspberry Pi User Guide

Introduction. 1
Programming is fun!. 1
A bit of history. 3
So what can you do with the Raspberry Pi? . 8
Part I: Connecting the Board
CHAPTER 1
Meet the Raspberry Pi. 11
ARM vs. x86. 12
Windows vs. Linux. 13
Getting Started with the Raspberry Pi. 14
Connecting a Display . 14
Composite Video . 14
HDMI Video. 15
DSI Video. 16
Connecting Audio . 16
Connecting a Keyboard and Mouse. 17
Flashing the SD Card. 19
Flashing from Linux. 20
Flashing from OS X . 21
Flashing from Windows . 21
Connecting External Storage. 22
Connecting the Network . 23
Wired Networking. 24
Wireless Networking. 25
Connecting Power. 26
CHAPTER 2
Linux System Administration . 27
Linux: An Overview. 28
Linux Basics. 30
Introducing Debian. 30
Using External Storage Devices. 34
Creating a New User Account. 36
File System Layout. 37
Logical Layout. 37
Physical Layout. 39
Installing and Uninstalling Software. 40
Finding Software. 41
Installing Software. 42
Uninstalling Software. 43
Upgrading Software.
CHAPTER 3
Troubleshooting. 45
Keyboard and Mouse Diagnostics . 46
Power Diagnostics. 47
Display Diagnostics. 49
Boot Diagnostics. 50
Network Diagnostics. 50
The Emergency Kernel. 53
CHAPTER 4
Network Configuration. 55
Wired Networking . 56
Wireless Networking . 59
No Encryption . 68
WEP Encryption. 68
WPA/WPA2 Encryption. 69
Connecting to the Wireless Network . 69
CHAPTER 5
Partition Management. 71
Creating a New Partition. 72
Resizing Existing Partitions. 76
Automatic Resizing. 76
Manual Resizing. 77
Moving to a Bigger SD Card . 81
Imaging from Linux. 82
Imaging from OS X. 83
Imaging from Windows . 83
CHAPTER 6
Configuring the Raspberry Pi. 85
Hardware Settings—config.txt. 86
Modifying the Display. 87
Boot Options . 90
Overclocking the Raspberry Pi. 91
Overclocking Settings . 92
Overvoltage Settings. 93
Disabling L2 Cache . 94
Enabling Test Mode . 95
Memory Partitioning—start.elf. 96
Software Settings—cmdline.txt. 97
Part II: Using the Pi as a Media Centre,
Productivity Machine and Web Server
CHAPTER 7
The Pi as a Home Theatre PC. 103
Playing Music at the Console . 104
Dedicated HTPC with Rasbmc . 106
Streaming Internet Media . 108
Streaming Local Network Media. 109
Configuring Rasbmc . 111
CHAPTER 8
The Pi as a Productivity Machine . 113
Using Cloud-Based Apps . 114
Using OpenOffice.org. 117
Image Editing with The Gimp. 119
CHAPTER 9
The Pi as a Web Server. 123
Installing a LAMP Stack. 124
Installing WordPress . 128
Part III: Programming and Hacking
CHAPTER 10
An Introduction to Scratch. 135
Introducing Scratch . 136
Example 1: Hello World. 137
Example 2: Animation and Sound. 140
Example 3: A Simple Game. 143
Robotics and Sensors. 149
Sensing with the PicoBoard. 149
Robotics with LEGO. 150
Further Reading . 150
CHAPTER 11
An Introduction to Python. 151
Introducing Python . 152
Example 1: Hello World. 152
Example 2: Comments, Inputs, Variables and Loops . 158
Example 3: Gaming with pygame. 162
Example 4: Python and Networking . 171
Further Reading . 178
CHAPTER 12
Hardware Hacking . 179
Electronic Equipment. 180
Reading Resistor Colour Codes. 182
Sourcing Components. 184
Online Sources. 184
Offline Sources. 185
Hobby Specialists. 186
The GPIO Port. 186
UART Serial Bus. 188
I²C Bus. 189
SPI Bus . 189
Using the GPIO Port in Python . 189
Installing the GPIO Python Library . 190
GPIO Output: Flashing an LED. 192
GPIO Input: Reading a Button. 196
Moving Up From the Breadboard. 200
A Brief Guide to Soldering. 203
CHAPTER 13
Add-on Boards. 209
Ciseco Slice of Pi. 210
Adafruit Prototyping Pi Plate . 214
Fen Logic Gertboard. 217
Part IV: Appendixes
APPENDIX A
Python Recipes. 225
Raspberry Snake (Chapter 11, Example 3) . 226
IRC User List (Chapter 11, Example 4) . 228
GPIO Input and Output (Chapter 12). 230
APPENDIX B
HDMI Display Modes. 231
Index. 237