Explore the Raspberry Pi in 45 Electronics Projects

Introduction

This document outlines a collection of 45 electronics projects designed to be built using the Raspberry Pi. It covers various aspects of Raspberry Pi usage, from basic setup and software installation to advanced programming and hardware interfacing.

Chapter 1: Requirements

This chapter details the essential hardware and software components needed to get started with Raspberry Pi projects.

1.1 Raspberry Pi

Information on the Raspberry Pi board itself.

1.2 SD Card

Details on the SD card required for the operating system and storage.

1.3 Keyboard

Requirements for a keyboard for input.

1.4 Mouse

Requirements for a mouse for navigation.

1.5 Display

Information on compatible display devices.

1.6 Internet Connection

Details on how to connect the Raspberry Pi to the internet.

1.7 Power Supply

Specifications for the power supply unit.

1.8 Loudspeaker (Or Earphones)

Guidance on audio output devices.

1.9 Breadboard

Introduction to breadboards for prototyping.

1.10 Components

Overview of general electronic components used in projects.

1.11 Software Oscilloscope

Details on using the Raspberry Pi as a software oscilloscope.

Chapter 2: A Quick Tour Of The Raspberry Pi

This chapter provides a basic introduction to navigating and using the Raspberry Pi's operating system and features.

2.1 The Nano Text Editor

Introduction to the Nano text editor for code and configuration file editing.

2.2 Some Useful Commands

A collection of essential command-line interface (CLI) commands.

2.3 Raspberry Pi Desktop

An overview of the graphical desktop environment.

2.3.1 Application Menu

Description of the application menu for launching programs.

2.3.2 Web Browser Menu

Information on accessing and using the web browser.

2.3.3 File Manager Menu

Details on managing files and directories.

2.3.4 Terminal Menu

Guidance on using the terminal emulator.

2.3.5 Bluetooth Icon

Explanation of the Bluetooth icon and its functions.

2.3.6 WiFi Icon

Explanation of the WiFi icon and network status.

2.3.7 Volume Control

How to adjust the audio volume.

Chapter 3: Installing The Software

This chapter covers the process of installing and configuring the operating system and necessary software on the Raspberry Pi.

3.1 Raspberry Pi

General steps related to the Raspberry Pi setup.

3.1.1 Keyboard

Keyboard configuration.

3.1.2 Larger SD Card

Steps for using larger SD cards.

3.1.3 Changing The Memory Allocation (Memory Split)

Adjusting memory allocation between the CPU and GPU.

3.1.4 Raspbian Buster Installation Steps On Raspberry Pi 4

Specific installation instructions for Raspbian Buster on Raspberry Pi 4.

3.1.5 Remote Access

Methods for accessing the Raspberry Pi remotely.

3.1.6 Using Putty

Guide to using PuTTY for SSH connections.

3.1.7 Configuring the Putty

Steps for configuring PuTTY.

3.1.8 Using the Windows 10 SSH Client

Instructions for using the built-in SSH client in Windows 10.

3.1.9 Running Graphical Programs – Remote Access of the Desktop

How to run graphical applications remotely.

3.1.10 WinSCP

Using WinSCP for file transfer.

3.1.11 Windows 10 SCP Client

Using SCP client in Windows 10.

3.2 Static IP Address

Setting up a static IP address for the Raspberry Pi.

3.3 Windows PC (Optional)

Optional steps involving a Windows PC.

3.3.1 Disk Imager

Using disk imaging tools.

3.3.2 Python, wxPython and IdleX

Information on Python development tools.

Chapter 4: Short Introductions To...

This chapter provides introductory overviews of various programming languages and operating systems relevant to the Raspberry Pi.

4.1 Debian Linux

An introduction to Debian Linux, the operating system often used on Raspberry Pi.

4.2 Programming in Bash

Introduction to shell scripting with Bash.

4.3 Programming in Python

Introduction to programming with Python.

4.4 Programming in JavaScript

Introduction to programming with JavaScript.

Chapter 5: GPIO

This chapter focuses on General Purpose Input/Output (GPIO) pins and their use in electronics projects.

5.1 Introduction

An introduction to GPIO pins.

5.2 LED

Controlling Light Emitting Diodes (LEDs).

5.3 Flashing LED

Creating a flashing LED circuit.

5.4 Alternating Flashing LED

Creating a circuit with alternating flashing LEDs.

5.5 Timer LED with Window

Implementing a timer-controlled LED with a graphical window.

5.6 Switch

Reading input from switches.

5.7 Time Switch

Implementing time-based switching.

5.8 Toggling Switch

Using switches for toggling states.

5.9 Switch State in a Window

Displaying switch states in a graphical window.

5.10 A Button with Sound

Creating a project with a button that produces sound.

5.11 Pin Communications

Exploring communication protocols via GPIO pins.

Chapter 6: More Power

This chapter explores projects involving higher power components and drivers.

6.1 TD62783 8-Channel High Source Driver

Using the TD62783 driver for high-current loads.

6.1.1 Light (6 V, 65 mA)

Driving lights with specific voltage and current requirements.

6.1.2 Motor (5 V, 145 mA)

Driving motors with specific voltage and current requirements.

6.2 ULN2003 7 Open Darlington Arrays

Using the ULN2003 driver for multiple outputs.

6.2.1 Fan (12 V, 150mA) and Light (6 V, 65 mA)

Driving a fan and a light simultaneously.

6.3 IRF740 MOSFET

Using the IRF740 MOSFET for power control.

6.3.1 Motor (5 V, 550 mA)

Driving a motor with higher current requirements using a MOSFET.

Chapter 7: PWM

This chapter covers Pulse Width Modulation (PWM) techniques for controlling devices like LEDs and motors.

7.1 PWM LED with Graph

Controlling LED brightness using PWM and visualizing it with a graph.

7.2 Light with Gradually Increasing Brightness

Creating a smooth brightness transition for lights.

7.3 Motor with Variable Speed

Controlling motor speed using PWM.

Chapter 8: SPI

This chapter introduces the Serial Peripheral Interface (SPI) communication protocol.

8.1 Introduction to SPI

An overview of the SPI protocol.

8.2 MAX522 Digital to Analog (DAC)

Using the MAX522 DAC with SPI.

8.3 DAC with Opamp

Implementing a DAC circuit with an operational amplifier.

8.4 More than two SPI devices

Connecting multiple SPI devices.

8.5 MCP3008 Analog to Digital (ADC)

Using the MCP3008 ADC with SPI.

8.6 MCP3008 pseudo-differential measurement

Performing pseudo-differential measurements with the MCP3008.

Chapter 9: I2C

This chapter covers the Inter-Integrated Circuit (I2C) communication protocol.

9.1 Introduction to I2C

An overview of the I2C protocol.

9.2 MCP23008 I/O extender

Using the MCP23008 for expanding I/O capabilities via I2C.

9.3 More power for the extender

Enhancing the power capabilities of the I/O extender.

9.4 TC74 digital thermometer

Interfacing with the TC74 digital thermometer via I2C.

Chapter 10: Serial

This chapter explores serial communication, including RS232 and Bluetooth.

10.1 Introduction to RS232

An introduction to the RS232 serial communication standard.

10.1.1 Serial loopback

Performing a serial loopback test.

10.2 Serial connection between Raspberry Pi and Piccolino

Connecting the Raspberry Pi to a Piccolino microcontroller via serial.

10.2.1 Serial echo

Implementing a serial echo function.

10.2.2 Serial Analog Measurement (ADC)

Taking analog measurements using serial communication.

10.3 Bluetooth

Using Bluetooth for wireless communication.

Chapter 11: Web Server (WiFi or Wired)

This chapter covers setting up a web server on the Raspberry Pi.

11.1 Introduction

Introduction to web server concepts on the Raspberry Pi.

11.2 HTML server

Creating a basic HTML web server.

11.3 CGI

Using Common Gateway Interface (CGI) for dynamic web content.

11.3.1 Hello User

A simple CGI script to greet the user.

11.3.2 Visitor counter in a file

Implementing a visitor counter that stores data in a file.

11.3.3 Passing variables from the browser to the server

Handling data transfer from the browser to the server.

11.3.4 GPIO

Controlling GPIO pins via a web interface.

11.3.5 GPIO with JavaScript

Using JavaScript to interact with GPIO pins through the web server.

11.3.6 I2C Fridge alarm with automatic web page

Building an I2C-based fridge alarm with a web interface.

Chapter 12: Client Server (WiFi or Wired)

This chapter explores client-server communication protocols like TCP and UDP.

12.1 Introduction

Introduction to client-server architecture.

12.2 TCP multiplication

A project demonstrating TCP communication for multiplication.

12.3 TCP LED control

Controlling LEDs over a TCP network.

12.4 TCP DAC

Using TCP to control a Digital-to-Analog Converter.

12.5 TCP sawtooth and square wave generator

Generating waveforms using TCP.

12.6 TCP Voltmeter with 8 channels

Building an 8-channel voltmeter using TCP.

12.7 UDP echo

Implementing a UDP echo server/client.

12.8 UDP light meter

Creating a light meter using UDP communication.

Chapter 13: Bluetooth Project

This chapter focuses on Bluetooth projects.

13.1 Android Bluetooth Apps

Developing Android applications for Bluetooth interaction.

Chapter 14: LEGO Board

This chapter covers projects involving LEGO boards and integration.

14.1 Introduction

Introduction to LEGO board projects.

14.2 Design

Design considerations for LEGO-based projects.

14.3 Commands

Commands related to LEGO board interaction.

14.4 The Useless Box

A project to build a "Useless Box" using LEGO and Raspberry Pi.

Appendices

Appendix A

Additional information and circuits.

1 Adjustable power supply

Details on building an adjustable power supply.

2 GPIO header circuit

Diagram and explanation of a GPIO header circuit.

Appendix B

Resources and parts lists.

1 Contents of the download package

Information on downloadable resources.

2 Parts list

A list of components used in the projects.

Appendix C

Comparison of Python versions.

Python 2.x vs Python 3.x

A comparison between Python 2 and Python 3.

Index

An index for quick reference to topics covered in the book.