Index

A

• Adafruit / I2C bus and level shifting
• Adafruit Industries
  • URL / General component sources
• additional drivers, Raspberry Pi camera module
  • about / Additional drivers for the Raspberry Pi camera
• advanced motor control
  • using / Using advanced motor control, How to do it…, How it works…, Motor speed control using PWM control, Using I/O expanders
• AirPi Air Quality and Weather project
  • URL / See also
• alternative script locations
  • about / Alternative script locations
• Amazon
  • URL / General component sources
• analog-to-digital converter
  • used, for reading analog data / Reading analog data using an analog-to-digital converter, Getting ready, How to do it..., How it works...
• Analog-to-Digital Converters (ADCs)
  • about / Introduction
• analog data
  • reading, analog-to-digital converter used / Reading analog data using an analog-to-digital converter, Getting ready, How to do it..., How it works...
  • gathering, without hardware / Gathering analog data without hardware
• analogue display method / How to do it…
• animate() function / How it works…
• apt commands
  • about / APT commands
• ARM1176JZF-S
  • about / Introduction
• ARMv6 architecture
  • about / Introduction
• Auto-MDIX
  • about / Getting ready

B

• 802.11bgn signal / Getting ready
• back EMF
  • about / Darlington array circuits
• Banggood
  • URL / General component sources
• BASIC
  • about / Why Python?
• basic object
  • drawing, within 3D space / How to do it…, How it works…
• bat-and-ball game
  • creating / Creating a bat and ball game, How it works…
• battery/power source
  • about / Getting ready
• binary blob
  • about / How it works…
• Blender
  • about / Creating or loading your own objects
• Bluetooth
  • Raspberry, controlling over / Getting ready, How to do it..., How it works...
• Bluetooth module
  • settings, configuring / Configuring Bluetooth module settings
• Bonjour
  • about / There's more…
• boot-up menu
  • creating / How to do it…, How it works…, There's more…
• BOOT partition
  • accessing / Accessing the Data/RECOVERY/BOOT partition
• BOOT Partition
  • about / How it works…
• breadboard circuitry / Getting ready
• btntest.py script
  • creating / How to do it…
• Building module
  • about / Building 3D maps and mazes
• button
  • responding to / Responding to a button, Getting ready, How it works…
• byte
  • about / Using SPI to control an LED matrix

C

• cable ties
  • about / Getting ready
• Caesar Cypher / How it works…
• calibrateCompass() function / Calibrating the compass
• calibration
  • saving / Saving the calibration
• camera
  • about / Camera
  • focus, improving / Improving the focus
  • hardware shutter, creating / Creating a hardware shutter
• cameraGUI.camCapture() function / How it works…
• cameraGUI class
  • about / Class member and static functions
  • class members / Class member and static functions
  • static functions / Class member and static functions
  • class inheritance / Class inheritance and function overriding
  • function overriding / Class inheritance and function overriding
• camera LED
  • disabling / Disabling the camera LED
• camera module
  • about / Using the camera with Python
  • using, with Python / Getting ready, How it works…
• Camera Serial Interface (CSI) connector
  • about / Introduction
• camTimelapse() function / How it works…
• capture_continuous() function / Generating a time-lapse video
• caster wheel
  • about / Getting ready
• Cat5e
  • about / Getting ready
• CE signal / Using SPI to control an LED matrix
• chassis
  • about / Getting ready
• Chip Select (CS)
  • about / Using SPI to control an LED matrix
• Ciseco
  • URL / General component sources
• collisions
  • detecting, SolidObjects used / Using SolidObjects to detect collisions
• compass
  • calibrating / Calibrating the compass
  • used, for driving robot / Driving the robot using the compass
• compass bearing
  • calculating / Calculating the compass bearing
• controlled shutdown button
  • about / A controlled shutdown button
  • working / How it works…
• convertFile() function / How it works…
• cycleImages() function / How it works…

D

• 3D maps
  • building / How to do it…, How it works...
• 3D mazes
  • building / How to do it…, How it works...
• 3D models
  • creating / Creating and importing 3D models, Getting ready, How it works...
  • importing / Creating and importing 3D models, Getting ready, How it works...
• 3D space
  • basic object, drawing within / How to do it…, How it works…
• 3D world
  • creating / Getting ready, How it works…
• daisy chain SPI configuration
  • about / Daisy-chain SPI configuration
• Darlington transistors
  • using, to drive motors / Darlington array circuits
• data
  • logging / How to do it..., How it works...
  • plotting / How to do it..., How it works...
  • calibrating / Scaling and calibrating data
  • scaling / Scaling and calibrating data
  • sending, to online services / Sensing and sending data to online services, Getting ready, How it works...
  • sensing / Sensing and sending data to online services, Getting ready, How it works...
• data Partition
  • about / How it works…
• data partition
  • accessing / Accessing the Data/RECOVERY/BOOT partition
• dd command
  • about / Using the tools to backup your SD card in case of failure
• DealExtreme
  • URL / General component sources
• decryptButton() function / How it works…
• desktop
  • running, with X11 Forwarding / Running as a desktop with X11 Forwarding
• determineDir() function / How it works…
• devices
  • using, with I2C bus / Getting ready, How to do it...
• DHCP
  • about / How to do it…
• direct network link
  • using / Direct network link
• dispPreview() function
  • about / There's more…
• dmesg command / Configuring a USB to RS232 device for the Raspberry Pi
• DNS server
  • about / Getting ready
• doAnimate() function / How it works…
• doChangeLAN() function / Adding extra functions
• doShutdown() function / How it works…
• double pole (DP) / Getting ready
• double throw (DT) / Getting ready

E

• eBay
  • URL / General component sources
• egg / Creating or loading your own objects
• else option
  • about / How it works…
• encryptButton() function / How it works…
• encryptdecrypt.py module
  • about / Introduction
• encryptText() function / How it works…
• errors
  • handling / Using files and handling errors, Getting ready, How to do it…, How it works…
• except option
  • about / How it works…
• except ValueError option
  • about / How it works…
• Exchangeable Image File Format (EXIF)
  • about / How it works…

F

• File Allocation Table (FAT)
  • about / Accessing the Data/RECOVERY/BOOT partition
• files
  • handling / Using files and handling errors, Getting ready, How to do it…, How it works…
• finally option
  • about / How it works…
• flite
  • about / Getting ready
• Fritzing
  • URL / Getting ready
• FuncAnimation() function / Plotting live data
• fuze / Generating other key combinations

G

• games
  • about / Introduction
• Geany
  • about / Getting ready
  • installing / Getting ready
• gears
  • about / Getting ready
• GeekOnFire
  • URL / General component sources
• general electronic component retailers
  • about / General component sources
• getDate(self) operation / How it works…
• getTKImage() function / How it works…
• global variable / How it works…
• GPIO built-in serial pins
  • using / Using the GPIO built-in serial pins
• GPIO current
  • controlling / Controlling the GPIO current
• GPIO keypad input
  • working / How it works…
• gpiokeys.py script
  • creating / How to do it…, How it works…
• graphical application Start menu
  • creating / Creating a graphical application Start menu, How to do it…, How it works…
• Graphical Processing Unit (GPU) / Introduction
• graphical user interface (GUI)
  • about / Introduction
• graphical user interfaces (GUIs) / Introduction
  • creating, Tkinter used / Using Tkinter to create graphical user interfaces, Getting ready, How it works…
• grep command
  • about / How to do it…

H

• H-bridge
  • using / Using advanced motor control
• hardware list / Hardware list
• hardware multiplexing
  • about / Multiplexed color LEDs
• HDMI display / How to do it…
• hellopi.py file / Introduction
• Hobbyking
  • URL / General component sources
• home
  • automating, with remote sockets / Automating your home with remote sockets, Getting ready, How to do it..., How it works...
• HyperTerminal
  • URL / How to do it...

I

• I/O expander
  • Raspberry Pi GPIO, extending with / Extending the Raspberry Pi GPIO with an I/O expander, Getting ready, How to do it..., How it works...
  • voltage regulator, connecting to / I/O expander voltages and limits
• I/O expander module
  • using / Using your own I/O expander module
• I/O expanders
  • using / Using I/O expanders
• I/O expander voltages / I/O expander voltages and limits
• I2C
  • about / Using devices with the I2C bus
• I2C bus
  • devices, using with / Getting ready, How to do it...
  • about / I2C bus and level shifting
  • level shifting / I2C bus and level shifting
• IDE (Integrated Development Environment)
  • about / Getting ready
• IDLE3 / Getting ready
  • used, for debugging program / Using IDLE3 to debug your programs, How it works…
• ImportError exception
  • about / Getting ready
• import __future__ statement
  • about / Python 2 and Python 3
• initCompass() function / How it works…
• initDates(self) operation / How it works…
• initExif() function / How it works…
• initExif(self,image) operation / How it works…
• initImage(self) operation / How it works…
• InputEvent objects
  • about / Getting ready
• installation, Geany / Getting ready
• installation, Pi3D / Getting ready
• installation, uInput / Getting ready
• Internet Service Provider (ISP)
  • about / Getting ready
• IPv4 address
  • about / Getting ready

J

• Joint Test Action Group (JTAG) / Secondary hardware connections

K

• key elements, 3D graphics programming
  • camera / Camera
  • shaders / Shaders
  • lights / Lights
  • textures / Textures

L

• LAN connector
  • Raspberry Pi, connecting to Internet via / Networking and connecting your Raspberry Pi to the Internet via the LAN connector, How to do it…, There's more…
• layout, Raspberry Pi
  • HDMI display / How to do it…
  • analogue display method / How to do it…
  • Stereo Analogue Audio / How to do it…
  • Network (Model B Only) / How to do it…
  • USB (x1 Model A, x2 Model B) / How to do it…
  • Micro USB Power / How to do it…
• LCD alphanumeric display
  • controlling, directly / Directly controlling an LCD alphanumeric display
• Least Significant Bit (LSB) / How it works...
• LED
  • controlling / Getting ready, How to do it…
  • hardware multiplexing / Hardware multiplexing
  • random patterns, displaying / Displaying random patterns
  • multiple colors, mixing / Mixing multiple colors
• LED matrix
  • controlling, SPI used / Getting ready, How to do it…, How it works...
• led_activate() function / How it works…
• led_cleanup() function / How it works…
• led_combo() function / Mixing multiple colors
• led_deactivate() function / How it works…
• led_gpiocontrol() function / How it works…
• led_rgbrandom() function / Displaying random patterns
• lighting
  • about / Lights
• lights
  • about / Lights
• lines
  • drawing, on Tkinter Canvas / Drawing lines using a mouse on Tkinter Canvas, Getting ready, How it works…
• Linux Reader
  • about / Accessing the Data/RECOVERY/BOOT partition
• live data
  • plotting / Plotting live data
• local variable / How it works…

M

• .mtl files / Changing the object's textures and .mtl files
• Machine Code Assembler
  • about / Why Python?
• MagPi Issue 18
  • about / Pi NoIR – taking night shots
• Maplin UK
  • URL / General component sources
• matplotlib
  • installing, manually / Getting ready
• MAX7219 LED driver / Getting ready
• MISO signal / Using SPI to control an LED matrix
• missile type devices
  • controlling / Controlling similar missile-type devices
• ModMyPi
  • URL / General component sources
• MOSFETs
  • about / Transistor and relay circuits
• MOSI signal / Using SPI to control an LED matrix
• Most Significant Bit (MSB) / How it works...
• motor class functions
  • off() / How it works…
  • drive() / How it works…
  • cmd() / How it works…
• motor driver/controller
  • about / Getting ready
• motors
  • about / Getting ready
• motor speed
  • controlling, PWM signal used / Motor speed control using PWM control
• mouse
  • used, for drawing lines on Tkinter Canvas / Drawing lines using a mouse on Tkinter Canvas, Getting ready, How it works…
• mouse events
  • emulating / Emulating mouse events
• Mouser Electronics
  • URL / General component sources
• multiple I2C devices
  • using / Using multiple I2C devices
• multiple programs
  • running, with X11 Forwarding / Running multiple programs with X11 Forwarding
• multiplexed color LEDs
  • working / How it works…

N

• nameservers
  • about / Getting ready
• nano editor
  • about / There's more…
• nano text editor / Getting ready
• netmask
  • about / Getting ready
• network
  • configuring, manually / Getting ready, How to do it…, There's more…
• Newark
  • URL / General component sources
• NoIR camera / There's more…
• NOOBS
  • about / Getting ready, Using NOOBS to set up your Raspberry Pi SD card
  • used, for setting up Raspberry Pi SD card / Getting ready, How to do it…, How it works…
  • URL, for downloading / Getting ready
  • URL, for documentation / Getting ready
• Notepad ++
  • URL / PC software utilities
• Notepad++
  • about / How to do it…

O

• .obj model
  • creating / Creating or loading your own objects
• obj / Creating or loading your own objects
• object
  • texture, modifying / Changing the object's textures and .mtl files
• objects
  • creating / Creating or loading your own objects
  • loading / Creating or loading your own objects
• obstacles
  • avoiding / Avoiding objects and obstacles, How to do it…, How it works…, There's more…
• online services
  • data, sending to / Sensing and sending data to online services, Getting ready, How it works...
• OOD
  • principle / There's more…
• OpenArena / Introduction
• OpenCV Self-balancing Robot
  • URL / See also
• OpenGL ES 2.0 / Introduction
• Open Source Computer Vision (OpenCV) project / See also
• OWI Robotic Arm
  • controlling, with USB interface / Robot arm

P

• P1 13 x 2 GPIO pin header / Secondary hardware connections
• P2/P3 GPU/LAN JTAG / Secondary hardware connections
• P5 8 x 2 GPIO pin header / Secondary hardware connections
• P5 and P6 pin header / Secondary hardware connections
• P5 header
  • about / Relocating to the P5 header
  • relocating to / Relocating to the P5 header
• P6 reset / Secondary hardware connections
• passwd command
  • about / Changing the default user password
• PATH
  • scripts, adding to / Adding scripts to PATH
• PCF8591 chip
  • URL, for info / Using just the PCF8591 chip or adding alternative sensors
• PCF8591 module
  • circuit diagram / Using just the PCF8591 chip or adding alternative sensors
• PC software utilities
  • about / PC software utilities
• photo information
  • displaying, in application / Displaying photo information in an application, How to do it…, How it works…, There's more…
• photos
  • organizing, automatically / Organizing your photos automatically, How to do it…, How it works…
• Pi3D
  • URL, for wiki and documentation pages / Introduction
  • URL, for support/development groups / Introduction
  • usage, demonstrating / Getting ready, How it works…
  • downloading / Getting ready
  • installing / Getting ready
• pi3d.Building module
  • about / The Building module
• Pi3D library / Introduction
• PiBorg
  • URL / General component sources
• picamera module
  • about / Using the camera with Python
  • URL, for documentation / Using the camera with Python
• PicoBorg
  • about / Transistor and relay circuits
• Pi Hardware
  • URL / General component sources
• Pillow
  • about / Getting ready
• Pimoroni
  • URL / General component sources
• Pi NoIR / Pi NoIR – taking night shots
• PIP
  • about / Getting ready
• Pip Python package manager commands
  • about / Pip Python package manager commands
• Pi Supply
  • URL / General component sources
• Polyfuses / How to do it…
• PPM file
  • about / How it works…
• premade Rover chassis / Rover kits
• previewPhoto(self) operation / How it works…
• Printed Circuit Board (PCB)
  • about / Getting ready
• program
  • debugging, IDLE3 used / Using IDLE3 to debug your programs, How it works…
• protection resistors / Protection resistors
• protective resistors
  • pull-up resistor / Pull-up and pull-down resistor circuits
  • pull-down resistor / Pull-up and pull-down resistor circuits
• proxy server
  • Raspberry Pi, connecting to Internet through / Getting ready, How it works…
• pull-down resistor / Pull-up and pull-down resistor circuits
• pull-up resistor / Pull-up and pull-down resistor circuits
• PuTTY
  • about / How to do it…
  • URL, for downloading / How to do it…
  • URL / PC software utilities
• PWM signal
  • about / There's more…
  • used, for controlling motor speed / Motor speed control using PWM control
• pycamera module / Generating a time-lapse video
• PyGame
  • running, with X11 Forwarding / Running PyGame and Tkinter with X11 Forwarding
• pyplot
  • URL / Logging and plotting data
• PyQRCode
  • used, for creating QR codes / Generating QR codes
• Python
  • about / Why Python?, Introduction
  • camera module, using with / Getting ready, How it works…
• Python 2
  • about / Python 2 and Python 3
• Python 3
  • about / Python 2 and Python 3
• Python Image Library (PIL)
  • about / Getting ready
• Python Package Manager
  • about / Getting ready
• Python Software Foundation
  • about / Python 2 and Python 3
• PyUSB
  • about / Controlling USB devices
  • installing, for Python 3 / Getting ready

Q

• QR code reader
  • generating / Making a QR code reader, Getting ready, How to do it…, How it works…
• QR codes
  • creating, PyQRCode used / Generating QR codes
• Quake 3 / Introduction
• Quick2Wire
  • URL / General component sources

R

• randint() function / Displaying random patterns
• Raspberry Pi
  • about / Introducing the Raspberry Pi
  • connecting / Getting ready, How to do it…
  • layout / How to do it…
  • shutting down / Ensuring that you shut down safely
  • connecting, to Internet via LAN connector / Networking and connecting your Raspberry Pi to the Internet via the LAN connector, How to do it…, There's more…
  • connecting, to Internet via USB Wi-Fi dongle / Getting ready, How to do it…
  • connecting, to Internet through proxy server / Getting ready, How it works…
  • connecting, remotely over network with VNC / Getting ready, How to do it…
  • connecting, remotely over network with SSH / Connecting remotely to the Raspberry Pi over the network using SSH (and X11 Forwarding), How to do it…, How it works…
  • home folder, sharing with SMB / Getting ready, How to do it…
  • upgrading / Keeping the Raspberry Pi up to date
  • resetting / Resetting and rebooting Raspberry Pi
  • rebooting / Resetting and rebooting Raspberry Pi
  • controlling, over Bluetooth / Getting ready, How to do it..., How it works...
• Raspberry Pi camera module
  • about / Introduction, Getting started with the Raspberry Pi camera module
  • setting up / Getting ready
  • additional drivers / Additional drivers for the Raspberry Pi camera
• Raspberry Pi Foundation
  • about / Introducing the Raspberry Pi, Getting ready
• Raspberry Pi GPIO
  • extending, with I/O expander / Extending the Raspberry Pi GPIO with an I/O expander, Getting ready, How to do it..., How it works...
• Raspberry Pi LAN port
  • connecting, to laptop/computer / Networking directly to a laptop or computer, Getting ready, How to do it…, How it works…
• Raspberry Pi model B
  • about / Introducing the Raspberry Pi
• Raspberry Pi packages
  • about / Raspberry Pi packages
• Raspberry Pi SD card
  • setting up, NOOBS used / Getting ready, How to do it…, How it works…
• Raspberry Pi specialists
  • about / General component sources
• raspi-blacklist.conf file / Getting ready
• raspi-config command
  • about / There's more…, Getting ready
• raspistill utility
  • about / How it works…
• raspivid utility
  • about / How it works…
• readCal() function / Saving the calibration
• readCompass() function / Calibrating the compass
• readCompassAngle() function / Calculating the compass bearing
• readCompassRaw() function / How it works…
• RealTerm
  • URL / How to do it..., PC software utilities
• RECOVERY partition
  • accessing / Accessing the Data/RECOVERY/BOOT partition
• RECOVERY Partition
  • about / Getting ready
• relay circuits
  • switching, transistors used / Transistor and relay circuits
• remote sockets
  • home, automating with / Automating your home with remote sockets, Getting ready, How to do it..., How it works...
• REST
  • about / Sensing and sending data to online services
• RF control signals
  • sending, directly / Sending RF control signals directly
• rgbled.py script
  • creating / How to do it…
• RGB LED module
  • about / Getting ready
• RJ45 type connector
  • about / Getting ready
• robot direction
  • determining / Getting a sense of direction
  • determining, XLoBorg module used / Getting ready, How to do it…, How it works…
• root Partition
  • about / How it works…
• Rover-Pi robot
  • building, forward driving motors used / Building a Rover-Pi robot with forward driving motors, Getting ready, How to do it…, How it works…
  • Darlington transistors / Darlington array circuits
  • relay circuits / Transistor and relay circuits
  • transistors / Transistor and relay circuits
  • tether, using / Tethered or untethered robots
• Rover-Pi robot elements
  • chassis / Getting ready
  • front skid/caster / Getting ready
  • motor / Getting ready
  • gears / Getting ready
  • wheels / Getting ready
  • battery/power source / Getting ready
  • motor driver/controller / Getting ready
  • cable ties/wire ties / Getting ready
  • connecting, to Raspberry Pi / Getting ready
• RPi.GPIO library / How to do it…
• RS232
  • about / Communicating using a serial interface
  • signals / RS232 signals and connections
  • connections / RS232 signals and connections
  • loopback / The RS232 loopback
• RS232 device
  • USB, configuring to / Configuring a USB to RS232 device for the Raspberry Pi
• RS Components
  • URL / General component sources
• run() function / How it works…
• runApplicationThread() class / How it works…

S

• S2 Direct Display DSI / Secondary hardware connections
• S5 Direct Camera CSI / Secondary hardware connections
• safe voltages / Safe voltages
• SCLK signal / Using SPI to control an LED matrix
• Scratch
  • about / Why Python?
• screenshots
  • taking / Taking screenshots
• scripts
  • about / Working with text and strings
  • adding, to PATH / Adding scripts to PATH
• SD card
  • preparing, manually / Preparing an SD card manually
• SD Formatter
  • URL / PC software utilities
• secondary hardware connections, Raspberry Pi
  • P1 13 x 2 GPIO pin header / Secondary hardware connections
  • P5 8 x 2 GPIO pin header / Secondary hardware connections
  • P6 reset / Secondary hardware connections
  • P5 and P6 pin header / Secondary hardware connections
  • P2/P3 GPU/LAN JTAG / Secondary hardware connections
  • S5 Direct Camera CSI / Secondary hardware connections
  • S2 Direct Display DSI / Secondary hardware connections
• self-defining menu
  • creating / Creating a self-defining menu, How it works…
• self.genVideoTL / How it works…
• self.numImageTL / How it works…
• self.peroidTL / How it works…
• self.preview() function / How it works…
• self.shutter() function / How it works…
• self.totalTimeTL / How it works…
• serial interface
  • used, for communication / Communicating using a serial interface, Getting ready, How to do it..., How it works...
• Serial Port Profile (SPP) / Controlling the Raspberry Pi over Bluetooth
• Service set identifier (SSID) / Getting ready
• servo class
  • about / The servo class
• servos
  • controlling / Controlling the servos
• SETTINGS Partition
  • about / How it works…
• shaders / How it works…
  • about / Shaders
• shtdwn.py script
  • creating / How to do it…
• shutdown circuit
  • layout / Getting ready
  • components, adding / Adding extra functions
• shutdown command
  • about / Ensuring that you shut down safely
• single pole (SP) / Getting ready
• single pole single throw (SPST) / Getting ready
• single throw (ST) / Getting ready
• six-legged Pi-Bug robot
  • building / Building a six-legged Pi-Bug robot, How to do it…, How it works…
  • servos, controlling / Controlling the servos
  • working / Controlling the servos, The servo class, Learning to walk, The Pi-Bug code for walking
  • servo class / The servo class
  • movement, controlling / Learning to walk
  • code, for walking / The Pi-Bug code for walking
• skid
  • about / Getting ready
• Slave Select (SS)
  • about / Using SPI to control an LED matrix
• SMB
  • about / Sharing the home folder of the Raspberry Pi with SMB
  • home folder, sharing of Raspberry Pi / Getting ready, How to do it…
• software debouncing / How it works…
• software list
  • about / Software list
  • PC software utilities / PC software utilities
  • Raspberry Pi packages / Raspberry Pi packages
• SolidObjects
  • about / How it works...
  • used, for detecting collisions / Using SolidObjects to detect collisions
• SparkFun Electronics
  • URL / General component sources
• SPI
  • about / Using SPI to control an LED matrix
  • used, for controlling LED matrix / Getting ready, How to do it…, How it works...
• SPI bus
  • SCLK signal / Using SPI to control an LED matrix
  • CE signal / Using SPI to control an LED matrix
  • MOSI signal / Using SPI to control an LED matrix
  • MISO signal / Using SPI to control an LED matrix
• SSH
  • about / Connecting remotely to the Raspberry Pi over the network using SSH (and X11 Forwarding)
  • Raspberry Pi, connecting over network remotely / Connecting remotely to the Raspberry Pi over the network using SSH (and X11 Forwarding), How to do it…, How it works…
• Static IP DHCP address
  • about / There's more…
• Stereo Analogue Audio / How to do it…
• stop frame animation
  • creating / Creating a stop frame animation, How to do it…, How it works…
• strings
  • working with / Working with text and strings, Getting ready, How to do it…, How it works…
• struct.pack() function / How it works…
• struct.unpack() function / How it works…
• subnet mask
  • about / Getting ready
• system
  • expanding, for fitting to SD card / Expanding the system to fit in your SD card
• System-On-Chip (SoC) / Introduction

T

• Tandy UK
  • URL / General component sources
• terrain
  • about / Creating a 3D world to roam in
• tether
  • using, disadvantage / Tethered or untethered robots
• tethered robots
  • about / Tethered or untethered robots
• tetrahedron / How it works…
• text
  • working with / Working with text and strings, Getting ready, How to do it…, How it works…
• text editors, Raspberry Pi
  • nano / Getting ready
  • IDLE3 / Getting ready
  • Geany / Getting ready
• texture
  • modifying, of object / Changing the object's textures and .mtl files
• textures / How it works…
  • about / Textures
• Threading module
  • about / How it works…
• three-pass protocol / There's more…
• TightVNC server
  • about / How to do it…
• time-lapse video
  • generating / Generating a time-lapse video, Getting ready, How to do it…, How it works…
• timestamp() function / How it works…
• Tkinter
  • running, with X11 Forwarding / Running PyGame and Tkinter with X11 Forwarding
  • about / Introduction, Getting ready
  • used, for creating graphical user interfaces / Using Tkinter to create graphical user interfaces, Getting ready, How it works…
• tkinter.Event object / How it works…
• Tkinter Canvas
  • about / Introduction
  • lines, drawing on / Drawing lines using a mouse on Tkinter Canvas, Getting ready, How it works…
• tkinter library
  • about / Introduction
• TMP36 temperature sensor
  • about / Using just the PCF8591 chip or adding alternative sensors
• transistors
  • used, for switching relay circuits / Transistor and relay circuits
• try…except code / How it works…

U

• uInput
  • URL, for info / The GPIO keypad input
  • installing / Getting ready
• uinput
  • key combinations, generating / Generating other key combinations
  • mouse events, emulating / Emulating mouse events
• ULN2003 chip / Getting ready
• ultrasonic reversing sensors
  • about / Ultrasonic reversing sensors
  • working / Ultrasonic reversing sensors
• Unified Modelling Language (UML) / Class inheritance and function overriding
• untethered robots
  • about / Tethered or untethered robots
• update command / How to do it…
• USB
  • configuring, to RS232 device for Raspberry Pi / Configuring a USB to RS232 device for the Raspberry Pi
  • about / Controlling USB devices
• USB devices
  • controlling / Controlling USB devices, How to do it..., How it works...
• USB interface
  • OWI Robotic Arm, controlling / Robot arm
• USB webcam
  • using / Using a USB webcam instead
• USB Wi-Fi dongle
  • about / Networking and connecting your Raspberry Pi to the Internet via a USB Wi-Fi dongle
  • Raspberry Pi, connecting to Internet via / Getting ready, How to do it…
• USB wired network adapters
  • using / Using USB wired network adapters
• user account
  • default user password, modifying / Changing the default user password

V

• VideoCore IV GPU / Introduction
• VNC
  • Raspberry Pi, connecting over network remotely / Getting ready, How to do it…
• vncserver command
  • about / There's more…
• VNC Viewer
  • about / How to do it…
  • URL / PC software utilities
• voltage regulator
  • connecting, to I/O expander / I/O expander voltages and limits

W

• WEP
  • about / Getting ready
• Wheatstone bridge
  • about / Using just the PCF8591 chip or adding alternative sensors
• wheels
  • about / Getting ready
• Win32 Disk Imager
  • about / Using the tools to backup your SD card in case of failure
  • used, for backing up SD card / Using the tools to backup your SD card in case of failure
• WiringPi2 / Getting ready
• wiringPi2
  • URL / Getting ready
  • about / How it works...
• WPA
  • about / Getting ready
• WPA2
  • about / Getting ready
• writeCal() function / Saving the calibration
• www.dx.com module / How it works...

X

• X-11 forwarding
  • about / Getting ready
• X11 Forwarding
  • multiple programs, running with / Running multiple programs with X11 Forwarding
  • desktop, running with / Running as a desktop with X11 Forwarding
  • PyGame, running with / Running PyGame and Tkinter with X11 Forwarding
  • Tkinter, running with / Running PyGame and Tkinter with X11 Forwarding
• Xively
  • about / Sensing and sending data to online services
• xively-python library
  • about / Sensing and sending data to online services
  • URL / Sensing and sending data to online services
• XLoBorg module
  • using / Getting ready, How to do it…, How it works…
• Xming
  • URL / How to do it…, PC software utilities

Z

• ZBar
  • about / Getting ready
• zbarimg program
  • about / Getting ready
• ZyDAS chipset
  • about / How to do it…
• ZyXEL device
  • about / How to do it…