Raspberry Pi For Dummies

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Sean McManus. Raspberry Pi For Dummies

Raspberry Pi® For Dummies® To view this book's Cheat Sheet, simply go to www.dummies.com and search for “Raspberry Pi For Dummies Cheat Sheet” in the Search box. Table of Contents

List of Tables

List of Illustrations

Guide

Pages

Introduction

About This Book

Foolish Assumptions

Icons Used in This Book

Beyond the Book

Where to Go from Here

Setting Up Your Raspberry Pi

Introducing the Raspberry Pi

Introducing the Raspberry Pi Range

Raspberry Pi 4 Model B

Raspberry Pi 400

Raspberry Pi 3 Model A+

Raspberry Pi Zero

Older models

WHAT’S THE RASPBERRY PI COMPUTE MODULE?

RASPBERRY PI PICO: A MICROCONTROLLER, NOT A COMPUTER

Figuring Out What You Can Do with a Raspberry Pi

Getting Your Hands on a Raspberry Pi

Determining What Else You Need

Essentials

Optional extras

Downloading the Operating System

Introducing Linux

Imaging a microSD Card for Your Raspberry Pi

Choosing the Right Operating System for Your Raspberry Pi

Connecting Your Raspberry Pi

Connecting Your Raspberry Pi

Setting Up Your Raspberry Pi

Configuring Your Raspberry Pi in Raspberry Pi OS

Changing Your Wi-Fi Settings

Configuring Bluetooth Devices

Connecting the Raspberry Pi Camera Module

Connecting the camera on a Pi Zero

Connecting the camera on other Raspberry Pi models

Testing the Camera Module

Connecting Using SSH

Connecting Using VNC

Getting Started with Linux

Using the Desktop Environment

Navigating the Raspberry Pi Desktop

Using the Applications menu

Running applications that are not on the menu

Resizing and closing application windows

Using the Task Manager

Using File Manager

Navigating File Manager

Copying and moving files and folders

Selecting multiple files and folders

Creating new folders and blank files

Deleting files and folders

Sorting files

Exploring your Raspberry Pi

Browsing the Web with Chromium

Searching within web pages

Using tabbed browsing

Adding and using bookmarks

Protecting your privacy

Sending and Receiving Email with Claws Mail

Using the Image Viewer

Using the Text Editor

Configuring Printers

Customizing the Desktop

Playing the Games

Finding and Installing New Applications

Backing Up Your Data

Logging Out and Shutting Down

Using the Linux Shell

Understanding the Prompt

Exploring Your Linux System

Listing files and directories

Changing directories

Changing to the parent directory

Understanding the directory tree

Using relative and absolute paths

Checking file types

Investigating more advanced listing options

Understanding the Long Listing Format and Permissions

Slowing Down the Listing and Reading Files with the Less Command

Speeding Up Entering Commands

Using Redirection to Create Files

TOP TIPS FOR NAMING YOUR FILES

Creating Directories

Deleting Files

Using Wildcards to Select Multiple Files

Removing Directories

Copying and Renaming Files

Finding Files on Your Raspberry Pi

Installing and Managing Software on Your Raspberry Pi

Updating the cache

Finding the package name

Installing software

Running software

Upgrading the software

Removing software and freeing up space

Finding out what’s installed

Managing User Accounts on Your Raspberry Pi

Learning More about Linux Commands

Customizing the Shell with Your Own Linux Commands

Shutting Down and Rebooting Your Raspberry Pi

Using the Raspberry Pi for Both Work and Play

Being Productive with the Raspberry Pi

Installing LibreOffice on Your Raspberry Pi

Working with LibreOffice on the Raspberry Pi

Saving your work

Writing letters in LibreOffice Writer

Managing your budget in LibreOffice Calc

Creating presentations in LibreOffice Impress

Creating a party invitation with LibreOffice Draw

Editing Photos on the Raspberry Pi with GIMP

Working with GIMP

Understanding the GIMP screen layout

Resizing an image in GIMP

Cropping your photo

Rotating and flipping your photo

Adjusting the colors

Fixing imperfections

Converting images between different formats

Finding Out More about GIMP

Playing Audio and Video on the Raspberry Pi

Setting Up Your Media Center

Navigating the Media Center

Adding Media

Adding music

Adding videos

Adding pictures

Streaming media

Enjoying Your Media

Playing music

Playing videos

Viewing photos

Changing the Settings

Using a Remote Control

Turning Off Your Media Center

Playing Music in the Desktop Environment

Programming the Raspberry Pi

Introducing Programming with Scratch

Understanding What Programming Is

Working with Scratch

Understanding the Scratch screen layout

Making your sprite move

Using directions to move your sprite

Using grid coordinates to move and position your sprite

Showing sprite information on the Stage

Creating scripts

Changing your sprite’s appearance

Using costumes

Using speech and thought bubbles

Using graphic effects

Resizing your sprite

Changing your sprite’s visibility

Adding sounds and music

Using the Wait block to slow down your sprite

Using extensions in Scratch

Adding extensions

Using the music extension

Using the pen extension

Using the electronics extensions

Using the Sense HAT extension

Saving your work

Programming an Arcade Game Using Scratch

Starting a New Scratch Project and Deleting Sprites

Changing the Backdrop

Adding Sprites to Your Game

Drawing Sprites in Scratch

Naming Your Sprites

Controlling When Scripts Run

Using the green flag to start scripts

Using the Forever Control block

Enabling keyboard control of a sprite

Enabling a sprite to control another sprite

Using Random Numbers

Detecting When a Sprite Hits Another Sprite

Introducing Variables

Making Sprites Move Automatically

Fixing the Final Bug

Adding Scripts to the Stage

Duplicating Sprites

Playing Your Game

Adapting the Game’s Difficulty

Taking It Further with Scratch

Writing Programs in Python

Working with Python

Entering your first Python commands

Using the shell to calculate sums

Creating the Times Tables Program

Creating and running your first Python program

Using variables

Accepting user input

Printing words, variables, and numbers together

Using for loops to repeat

Creating the Chatbot Program

Introducing lists

Using lists to make a random chat program

Adding a while loop

Using a loop to force a reply from the user

Using dictionaries

Creating your own functions

Creating the dictionary look-up function

Creating the main conversation loop

Final thoughts on Chatbot

The final Chatbot program

Creating a Game with Python and Pygame Zero

Collecting Your Sounds and Images

Setting Up Your Folders

Creating and Running Your First Program

Detecting mouse clicks

Animating your actors

Using random numbers

Adding more clouds

Making the clouds regenerate

Enabling multiple clouds to be clicked

Adding the timer

Adjusting the game difficulty

The final game listing

Exploring Pygame Zero Further

Programming Minecraft with Python

Playing Minecraft

Moving around

Making and breaking things

Preparing for Python

Using the Minecraft Module

Understanding coordinates in Minecraft

Repositioning the player

Adding blocks

Stopping the player from changing the world

Setting the maze parameters

Laying the foundations

Placing the maze walls

Understanding the maze algorithm

Setting up the variables and lists

Creating the functions

Creating the main loop

Adding a ceiling

Positioning the player

The final code

Adapting the Program

Making Music with Sonic Pi

Understanding the Sonic Pi Screen Layout

Playing Your First Notes

Using Note and Chord Names

Playing Timed Patterns

Composing Random Tunes Using Shuffle

Changing the Random Number Seed

Using List Names in Your Programs

Playing Random Notes

Experimenting with Live Loops

Using Samples

Adding Special Effects

Synchronizing with Your Drumbeat

Bringing It All Together

Next Steps with Sonic Pi

Exploring Electronics with the Raspberry Pi

Understanding Circuits

Discovering What a Circuit Is

Understanding the nature of electricity

WATTS THE MATTER?

Putting theory into practice

Communicating a circuit to others

Calculating circuit values

TWO TYPES OF CIRCUITS

Determining how a component needs to be treated

Getting Familiar with the GPIO

Putting the general purpose in GPIO

Understanding what GPIOs do

FINDING A SAFE VALUE OF CURRENT

Putting an output pin to practical use

Using GPIOs as inputs

Learning which end is hot: Getting to grips with a soldering iron

COMPLYING WITH ENVIRONMENTAL REGULATIONS

Making a soldered joint

Looking at Ready-Made Add-On Boards

The Sense HAT

The Trill sensors

The LED SHIM

Other boards

Taking Control of Your Pi’s Circuitry

Accessing Raspberry Pi’s GPIO Pins

Soldering the GPIO pins onto Pi Zero or Pi ZeroW

Getting at all the pins with one connector

Connecting things together

Your First Circuit

Bringing your LED to life

Using Scratch 3.0

Control the flashing speed with an input

Using Python

Using GPIO ZERO

Starting Out with a Dice Display

A dice display

The project

The numbers

The display

Taking it further

Pedestrian Crossing

The Pedestrian Crossing hardware

The Pedestrian Crossing software

Taking it further

Lots of Multicolored LEDs

Making Colors

Using diffusers

Making more colors

The Way Forward

Bit-banging the APA102C protocol

Creating a class

SOURCING SOUNDS

Rainbow Invaders

Keepy Uppy

LEDs Galore

Current limits

Signals and memory

Display update

Getting more LEDs

LED strips

LED matrix

Old McDonald’s Farm and Other RFID Adventures

How RFID Work

A MIFARE card’s structure

A simple RFID jukebox

A better RFID jukebox

Taking it further

Dressing Up a Paper Doll

Runway time

Old McDonald’s Farm

Making sound samples

Making the graphics

The Part of Tens

Ten Great Software Packages for the Raspberry Pi

Penguins Puzzle

FocusWriter

Mathematica

Fraqtive

Tux Paint

Grisbi

Beneath a Steel Sky

Brain Party

Pure Data

Inkscape

Ten Inspiring Projects for the Raspberry Pi

One-Button Audiobook Player

Heartbeat Monitor

Smart Fridge

The Next Verse

Electric Skateboard

T-Shirt Cannon

Magic Mirror

Pi in the Sky

Raspberry Turk

Sound Fighter

Ten Great Add-Ons for the Raspberry Pi

Picade

CamJam EduKit 3

Piano HAT

Rainbow HAT

Display-O-Tron HAT

Flick

Unicorn HAT HD

Inky pHAT

Pirate Audio

Witty Pi

Troubleshooting and Configuring the Raspberry Pi

Troubleshooting the Raspberry Pi

Troubleshooting Your Network Connection

Adjusting the Settings on Your Raspberry Pi

Changing settings in the desktop and Raspi-config

Using Nano to edit config.txt

Fixing Audio Problems

Fixing Software Installation Issues

Mounting External Storage Devices

Index

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

R

S

T

U

V

W

X

Y

Z

About the Authors

Dedication

Authors’ Acknowledgments

WILEY END USER LICENSE AGREEMENT

Отрывок из книги

Raspberry Pi computers are at the forefront of the maker movement, where people make their own inventions using a mixture of traditional craft skills and modern coding and electronics knowledge. They’ve also given more and more people access to a computer that provides a gateway into programming, electronics, and the world of Linux — the technically powerful (and free) rival to Windows and Mac OS. As a supercheap computer, the Raspberry Pi is also being pressed into service in media centers and as a family computer for games, music, photo editing, and word processing.

You might be a geek who relishes learning new technologies, or you might be someone who wants a new family computer to use with the children. In either case, Raspberry Pi For Dummies, 4th Edition, helps you get started with your Raspberry Pi and teaches you about some of the many fun and inspiring things you can do with it.

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The Compute Module, or C for short, is designed for industrial use and intended to be built into a product you’re manufacturing. The modules tend to follow the release of the main Raspberry Pi models. There are also light versions available that correspond to the Model A of the Raspberry Pi. They’re built on a SODIMM board, which is what is sometimes used for PC memory modules. You’re supposed to design your own board to plug the Compute Module into, but a development kit is available with a C module and an example motherboard containing all the normal plug-in connectors (see www.raspberrypi.org/products/compute-module-development-kit-2). Note, however, that this is an expensive way to buy what is otherwise a normal Raspberry Pi. Currently, the Raspberry Pi Compute Module 4 is the latest one, but the dev kit uses the Compute Module 3.

We only mention the Compute Module here in case you wonder what it is: It’s not covered further in this book, and it’s almost certainly not what you want to buy for your first Raspberry Pi.

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