Book Image

Getting Started with Raspberry Pi Zero

By : Richard Grimmett
Book Image

Getting Started with Raspberry Pi Zero

By: Richard Grimmett

Overview of this book

Raspberry Pi Zero is half the size of Raspberry Pi A, only with twice the utility. At just three centimeters wide, it packs in every utility required for full-fledged computing tasks. This practical tutorial will help you quickly get up and running with Raspberry Pi Zero to control hardware and software and write simple programs and games. You will learn to build creative programs and exciting games with little or no programming experience. We cover all the features of Raspberry Pi Zero as you discover how to configure software and hardware, and control external devices. You will find out how to navigate your way in Raspbian, write simple Python scripts, and create simple DIY programs.

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Getting Started with Raspberry Pi Zero
Richard Grimmett
Mar, 2016 | 228 pages
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Table of Contents (16 chapters)
Getting Started with Raspberry Pi Zero
Getting Started with Raspberry Pi Zero
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with Raspberry Pi Zero
Getting Started with Raspberry Pi Zero
Setting up the Raspberry Pi Zero
Powering the board
Hooking up a keyboard, mouse, and display
Installing the operating system
Adding Internet access
Summary
2
Programming Raspberry Pi Zero
Programming Raspberry Pi Zero
Powering up Raspberry Pi Zero with Linux
Creating, editing, and saving files
Creating and running Python programs
Basic programming constructs on Raspberry Pi Zero
Summary
3
Accessing the GPIO Pins on Raspberry Pi Zero
Accessing the GPIO Pins on Raspberry Pi Zero
The GPIO capability of Raspberry Pi Zero
Simple GPIO digital voltage output
Adding a sonar sensor
Connecting a digital compass to Raspberry Pi Zero
Accessing the compass programmatically
Summary
4
Building and Controlling a Simple Wheeled Robot
Building and Controlling a Simple Wheeled Robot
The basic platform
Controlling an H-bridge interface to the DC motors
Controlling your mobile platform programmatically using the Raspberry Pi Zero
Controlling the speed of your motors with PWM
Using a motor controller board to control the DC motors
Controlling the vehicle using the Raspberry Pi Zero in Python
Planning your path
Summary
5
Building a Robot That Can Walk
Building a Robot That Can Walk
Robots that can walk
How servo motors work
Building the quadruped platform
Using a servo controller to control the servos
Communicating between the servo controller and a PC
Connecting the servo controller to the Raspberry Pi Zero
Creating a program in Linux to control your quadruped
Summary
6
Adding Voice Recognition and Speech – A Voice Activated Robot
Adding Voice Recognition and Speech – A Voice Activated Robot
Communication between the Raspberry Pi Zero and the robot
Giving your robot voice commands
Using eSpeak to allow your robot to respond with an audible voice
Using pocketsphinx to accept your voice commands
Interpreting commands and initiating actions
Summary
7
Adding Raspberry Pi Zero to an RC Vehicle
Adding Raspberry Pi Zero to an RC Vehicle
Configuring and controlling an RC car with Raspberry Pi Zero
Controlling the RC car in Python
Accessing the RC car remotely
Connecting a webcam
Summary
8
Playing Rock, Paper, or Scissors with Raspberry Pi Zero
Playing Rock, Paper, or Scissors with Raspberry Pi Zero
A robotic hand
Moving the robotic hand
Connecting the servo controller to the Raspberry Pi Zero
Creating a program on Raspberry Pi Zero so that you can control your hand
Installing a USB camera on Raspberry Pi Zero
Downloading and installing OpenCV – a fully featured vision library
Gesture detection
Summary
9
Adding Raspberry Pi Zero to a Quadcopter
Adding Raspberry Pi Zero to a Quadcopter
Constructing the platform
Mission planning software
Summary
Index
Index

Chapter 4. Building and Controlling a Simple Wheeled Robot

You should now be familiar with how to program your Raspberry Pi Zero and how to communicate with the outside world with the GPIO. Now, let's actually build a mobile project. Perhaps the easiest way to make your projects mobile is to use a wheeled platform. In this chapter, you will be introduced to some of the basics of manipulating DC motors and using the Raspberry Pi Zero to control the speed and direction of your wheeled platform.

In this chapter, you will learn how to perform the following actions:

  • Using the Raspberry Pi Zero GPIO to control a DC motor

  • Controlling your mobile platform programmatically using the Raspberry Pi Zero

  • Implementing some simple path planning algorithms on the Raspberry Pi Zero

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