- Preface to the Third Edition
- 1. Setup and Management
- 1.0. Introduction
- 1.1. Selecting a Model of Raspberry Pi
- 1.2. Connecting the System
- 1.3. Enclosing a Raspberry Pi
- 1.4. Selecting a Power Supply
- 1.5. Selecting an Operating System
- 1.6. Writing a microSD Card with NOOBS
- 1.7. Installing an Operating System Without NOOBS
- 1.8. Using PiBakery to Configure and Write an SD Card
- 1.9. Using PiBakery to Configure a Headless Raspberry Pi
- 1.10. Booting from a Real Hard Disk or USB Flash Drive
- 1.11. Connecting a DVI or VGA Monitor
- 1.12. Using a Composite Video Monitor/TV
- 1.13. Adjusting the Picture Size on Your Monitor
- 1.14. Maximizing Performance
- 1.15. Changing Your Password
- 1.16. Shutting Down Your Raspberry Pi
- 1.17. Installing the Raspberry Pi Camera Module
- 1.18. Using Bluetooth
- 2. Networking
- 2.0. Introduction
- 2.1. Connecting to a Wired Network
- 2.2. Finding Your IP Address
- 2.3. Setting a Static IP Address
- 2.4. Setting the Network Name of a Raspberry Pi
- 2.5. Setting Up a Wireless Connection
- 2.6. Connecting with a Console Lead
- 2.7. Controlling the Pi Remotely with SSH
- 2.8. Controlling the Pi Remotely with VNC
- 2.9. Controlling the Pi Remotely Using RDP
- 2.10. File Sharing on a Mac Network
- 2.11. Using a Raspberry Pi for Network Attached Storage
- 2.12. Network Printing
- 3. Operating System
- 3.0. Introduction
- 3.1. Browsing Files Graphically
- 3.2. Copying Files onto a USB Flash Drive
- 3.3. Starting a Terminal Session
- 3.4. Navigating the Filesystem Using a Terminal
- 3.5. Copying a File or Folder
- 3.6. Renaming a File or Folder
- 3.7. Editing a File
- 3.8. Viewing the Contents of a File
- 3.9. Creating a File Without Using an Editor
- 3.10. Creating a Directory
- 3.11. Deleting a File or Directory
- 3.12. Performing Tasks with Superuser Privileges
- 3.13. Understanding File Permissions
- 3.14. Changing File Permissions
- 3.15. Changing File Ownership
- 3.16. Making a Screen Capture
- 3.17. Installing Software with apt-get
- 3.18. Removing Software Installed with apt-get
- 3.19. Installing Python Packages with Pip
- 3.20. Fetching Files from the Command Line
- 3.21. Fetching Source Code with Git
- 3.22. Fetching This Book’s Accompanying Code
- 3.23. Running a Program or Script Automatically on Startup
- 3.24. Running a Program or Script Automatically as a Service
- 3.25. Running a Program or Script Automatically at Regular Intervals
- 3.26. Finding Things
- 3.27. Using the Command-Line History
- 3.28. Monitoring Processor Activity
- 3.29. Working with File Archives
- 3.30. Listing Connected USB Devices
- 3.31. Redirecting Output from the Command Line to a File
- 3.32. Concatenating Files
- 3.33. Using Pipes
- 3.34. Hiding Output to the Terminal
- 3.35. Running Programs in the Background
- 3.36. Creating Command Aliases
- 3.37. Setting the Date and Time
- 3.38. Finding Out How Much Room You Have on the SD Card
- 3.39. Find Out What Operating System Version You Are Running
- 3.40. Updating Raspbian
- 4. Software
- 5. Python Basics
- 5.0. Introduction
- 5.1. Deciding Between Python 2 and Python 3
- 5.2. Editing Python Programs with Mu
- 5.3. Using the Python Console
- 5.4. Running Python Programs from the Terminal
- 5.5. Assigning Names to Values (Variables)
- 5.6. Displaying Output
- 5.7. Reading User Input
- 5.8. Arithmetic
- 5.9. Creating Strings
- 5.10. Concatenating (Joining) Strings
- 5.11. Converting Numbers into Strings
- 5.12. Converting Strings into Numbers
- 5.13. Finding the Length of a String
- 5.14. Finding the Position of One String Within Another
- 5.15. Extracting Part of a String
- 5.16. Replacing One String of Characters with Another Within a String
- 5.17. Converting a String to Uppercase or Lowercase
- 5.18. Running Commands Conditionally
- 5.19. Comparing Values
- 5.20. Logical Operators
- 5.21. Repeating Instructions an Exact Number of Times
- 5.22. Repeating Instructions Until Some Condition Changes
- 5.23. Breaking Out of a Loop
- 5.24. Defining a Function in Python
- 6. Python Lists and Dictionaries
- 6.0. Introduction
- 6.1. Creating a List
- 6.2. Accessing Elements of a List
- 6.3. Finding the Length of a List
- 6.4. Adding Elements to a List
- 6.5. Removing Elements from a List
- 6.6. Creating a List by Parsing a String
- 6.7. Iterating Over a List
- 6.8. Enumerating a List
- 6.9. Sorting a List
- 6.10. Cutting Up a List
- 6.11. Applying a Function to a List
- 6.12. Creating a Dictionary
- 6.13. Accessing a Dictionary
- 6.14. Removing Entries from a Dictionary
- 6.15. Iterating Over Dictionaries
- 7. Advanced Python
- 7.0. Introduction
- 7.1. Formatting Numbers
- 7.2. Formatting Dates and Times
- 7.3. Returning More Than One Value
- 7.4. Defining a Class
- 7.5. Defining a Method
- 7.6. Inheritance
- 7.7. Writing to a File
- 7.8. Reading from a File
- 7.9. Pickling
- 7.10. Handling Exceptions
- 7.11. Using Modules
- 7.12. Random Numbers
- 7.13. Making Web Requests from Python
- 7.14. Command-Line Arguments in Python
- 7.15. Running Linux Commands from Python
- 7.16. Sending Email from Python
- 7.17. Writing a Simple Web Server in Python
- 7.18. Doing Nothing in Python
- 7.19. Doing More Than One Thing at a Time
- 7.20. Using Python with Minecraft: Pi Edition
- 7.21. Parsing JSON
- 7.22. Creating User Interfaces
- 7.23. Using Regular Expressions to Search for Patterns in Text
- 7.24. Using Regular Expressions to Validate Data Entry
- 7.25. Using Regular Expressions for Web Scraping
- 8. Computer Vision
- 9. Hardware Basics
- 9.0. Introduction
- 9.1. Finding Your Way Around the GPIO Connector
- 9.2. Keeping Your Raspberry Pi Safe When Using the GPIO Connector
- 9.3. Setting Up I2C
- 9.4. Using I2C Tools
- 9.5. Setting Up SPI
- 9.6. Installing PySerial for Access to the Serial Port from Python
- 9.7. Installing Minicom to Test the Serial Port
- 9.8. Using a Breadboard with Jumper Leads
- 9.9. Using a Breadboard with a Pi Cobbler
- 9.10. Using a Raspberry Squid
- 9.11. Using a Raspberry Squid Button
- 9.12. Converting 5V Signals to 3.3V with Two Resistors
- 9.13. Converting 5V Signals to 3.3V with a Level Converter Module
- 9.14. Powering a Raspberry Pi with Batteries
- 9.15. Powering a Raspberry Pi with a LiPo Battery
- 9.16. Getting Started with the Sense HAT
- 9.17. Getting Started with the Explorer HAT Pro
- 9.18. Getting Started with a RasPiRobot Board
- 9.19. Using a Pi Plate Prototyping Board
- 9.20. Making a HAT
- 9.21. The Pi Zero and Pi Zero W
- 10. Controlling Hardware
- 10.0. Introduction
- 10.1. Connecting an LED
- 10.2. Leaving the GPIO Pins in a Safe State
- 10.3. Controlling the Brightness of an LED
- 10.4. Switching a High-Power DC Device Using a Transistor
- 10.5. Switching a High-Power Device Using a Relay
- 10.6. Controlling High-Voltage AC Devices
- 10.7. Controlling Hardware with Android and Bluetooth
- 10.8. Making a User Interface to Turn Things On and Off
- 10.9. Making a User Interface to Control PWM Power for LEDs and Motors
- 10.10. Changing the Color of an RGB LED
- 10.11. Using an Analog Meter as a Display
- 11. Motors
- 11.0. Introduction
- 11.1. Controlling Servo Motors
- 11.2. Controlling Servo Motors Precisely
- 11.3. Controlling Multiple Servo Motors Precisely
- 11.4. Controlling the Speed of a DC Motor
- 11.5. Controlling the Direction of a DC Motor
- 11.6. Using a Unipolar Stepper Motor
- 11.7. Using a Bipolar Stepper Motor
- 11.8. Using a Stepper Motor HAT to Drive a Bipolar Stepper Motor
- 11.9. Using a RasPiRobot Board to Drive a Bipolar Stepper Motor
- 11.10. Building a Simple Robot Rover
- 12. Digital Inputs
- 12.0. Introduction
- 12.1. Connecting a Push Switch
- 12.2. Toggling with a Push Switch
- 12.3. Using a Two-Position Toggle or Slide Switch
- 12.4. Using a Center-Off Toggle or Slide Switch
- 12.5. Debouncing a Button Press
- 12.6. Using an External Pull-Up Resistor
- 12.7. Using a Rotary (Quadrature) Encoder
- 12.8. Using a Keypad
- 12.9. Detecting Movement
- 12.10. Adding GPS to the Raspberry Pi
- 12.11. Intercepting Keypresses
- 12.12. Intercepting Mouse Movements
- 12.13. Using a Real-Time Clock Module
- 12.14. Giving the Raspberry Pi a Reset Button
- 13. Sensors
- 13.0. Introduction
- 13.1. Using Resistive Sensors
- 13.2. Measuring Light
- 13.3. Measuring Temperature with a Thermistor
- 13.4. Detecting Methane
- 13.5. Measuring CO2 Concentration
- 13.6. Measuring a Voltage
- 13.7. Reducing Voltages for Measurement
- 13.8. Using Resistive Sensors with an ADC
- 13.9. Measuring Temperature with an ADC
- 13.10. Measuring the Raspberry Pi CPU Temperature
- 13.11. Measuring Temperature, Humidity, and Pressure with a Sense HAT
- 13.12. Measuring Temperature Using a Digital Sensor
- 13.13. Measuring Acceleration with an MMA8452Q Module
- 13.14. Finding Magnetic North with the Sense HAT
- 13.15. Using the Inertial Management Unit of the Sense HAT
- 13.16. Sensing a Magnet with a Reed Switch
- 13.17. Sensing a Magnet with the Sense HAT
- 13.18. Measuring Distance Using Ultrasound
- 13.19. Measuring Distance Using a Time-of-Flight Sensor
- 13.20. Capacitive Touch Sensing
- 13.21. Reading Smart Cards with an RFID Reader/Writer
- 13.22. Displaying Sensor Values
- 13.23. Logging to a USB Flash Drive
- 14. Displays
- 14.0. Introduction
- 14.1. Using a Four-Digit LED Display
- 14.2. Displaying Messages on an I2C LED Matrix
- 14.3. Using the Sense HAT LED Matrix Display
- 14.4. Displaying Messages on an Alphanumeric LCD HAT
- 14.5. Using an OLED Graphical Display
- 14.6. Using Addressable RGB LED Strips
- 14.7. Using the Pimoroni Unicorn HAT
- 14.8. Using an ePaper Display
- 15. Sound
- 16. The Internet of Things
- 16.0. Introduction
- 16.1. Controlling GPIO Outputs Using a Web Interface
- 16.2. Displaying Sensor Readings on a Web Page
- 16.3. Getting Started with Node-RED
- 16.4. Sending Email and Other Notifications with IFTTT
- 16.5. Sending Tweets Using ThingSpeak
- 16.6. CheerLights
- 16.7. Sending Sensor Data to ThingSpeak
- 16.8. Responding to Tweets Using Dweet and IFTTT
- 17. Home Automation
- 17.0. Introduction
- 17.1. Making a Raspberry Pi into a Message Broker with Mosquitto
- 17.2. Using Node-RED with an MQTT Server
- 17.3. Flashing a Sonoff WiFi Smart Switch for MQTT Use
- 17.4. Configuring a Sonoff WiFi Smart Switch
- 17.5. Using Sonoff Web Switches with MQTT
- 17.6. Using Flashed Sonoff Switches with Node-RED
- 17.7. The Node-RED Dashboard
- 17.8. Scheduled Events with Node-RED
- 17.9. Publishing MQTT Messages from a Wemos D1
- 17.10. Using a Wemos D1 with Node-RED
- 18. Arduino and Raspberry Pi
- 18.0. Introduction
- 18.1. Programming an Arduino from Raspberry Pi
- 18.2. Communicating with an Arduino by Using the Serial Monitor
- 18.3. Setting Up PyFirmata to Control an Arduino from a Raspberry Pi
- 18.4. Writing Digital Outputs on an Arduino from a Raspberry Pi
- 18.5. Using PyFirmata with TTL Serial
- 18.6. Reading Arduino Digital Inputs Using PyFirmata
- 18.7. Reading Arduino Analog Inputs Using PyFirmata
- 18.8. Analog Outputs (PWM) with PyFirmata
- 18.9. Controlling a Servo Using PyFirmata
- 18.10. Using Small Arduino Boards with a Raspberry Pi
- 18.11. Using Small WiFi-Enabled Arduino-Compatibles (ESP8266)
- Parts and Suppliers
- Raspberry Pi Pinouts
- Index
Appendix B. Raspberry Pi Pinouts
Raspberry Pi 4/3/2 model B, B+, A+, Zero
Figure B-1 shows the pinout for the current 40-pin general-purpose input/output (GPIO) Raspberry Pi.
Figure B-1. 40-pin Raspberry Pi GPIO pinout
Raspberry Pi model B revision 2, A
If you have a Raspberry Pi, it is most likely to be a model B revision 2 board, as shown in Figure B-2.
Figure B-2. Raspberry Pi model B revision 2 and model A GPIO pinout
Raspberry Pi model B revision 1
The very first released version of the Raspberry Pi model B (revision 1) has some minor pinout differences to the revision 2 that followed. This is the only version of the Raspberry Pi that is not compatible with later pinouts. The incompatible pins that changed are highlighted in bold in Figure B-3.
Figure B-3. Raspberry Pi model B revision 1 GPIO pinout
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