You're reading from Learn Robotics Programming Build and control AI-enabled autonomous robots using the Raspberry Pi and Python

Product type Paperback

Published in Feb 2021

Publisher Packt

ISBN-13 9781839218804

Length 602 pages

Edition 2nd Edition

Languages

Python

Tools

Raspberry Pi

Concepts

Robotics

Author (1):

Danny Staple

View More author details

Table of Contents (25) Chapters

Preface

1. Section 1: The Basics – Preparing for Robotics

2. Chapter 1: Introduction to Robotics FREE CHAPTER

3. Chapter 2: Exploring Robot Building Blocks – Code and Electronics

4. Chapter 3: Exploring the Raspberry Pi

5. Chapter 4: Preparing a Headless Raspberry Pi for a Robot

6. Chapter 5: Backing Up the Code with Git and SD Card Copies

7. Section 2: Building an Autonomous Robot – Connecting Sensors and Motors to a Raspberry Pi

8. Chapter 6: Building Robot Basics – Wheels, Power, and Wiring

9. Chapter 7: Drive and Turn – Moving Motors with Python

10. Chapter 8: Programming Distance Sensors with Python

11. Chapter 9: Programming RGB Strips in Python

12. Chapter 10: Using Python to Control Servo Motors

13. Chapter 11: Programming Encoders with Python

14. Chapter 12: IMU Programming with Python

15. Section 3: Hearing and Seeing – Giving a Robot Intelligent Sensors

16. Chapter 13: Robot Vision – Using a Pi Camera and OpenCV

17. Chapter 14: Line-Following with a Camera in Python

18. Chapter 15: Voice Communication with a Robot Using Mycroft

19. Chapter 16: Diving Deeper with the IMU

20. Chapter 17: Controlling the Robot with a Phone and Python

21. Section 4: Taking Robotics Further

22. Chapter 18: Taking Your Robot Programming Skills Further

23. Chapter 19: Planning Your Next Robot Project – Putting It All Together

24. Other Books You May Enjoy

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Writing code to test your motors

Before we get stuck in and do fancy things with the motors, we need to get them set up and test them. This way, we can make sure they work and iron out any problems.

We need to download the library to work with the motor board we have chosen. Many robot parts, apart from the simplest ones, have an interface library to control the motors and other devices on the board. It's time to log in to your Pi using PuTTY again.

Preparing libraries

We download this code from a project on GitHub using Git on the Raspberry Pi. So, we need to install Git on the Pi; we also need I2C (i2c-tools and python3-smbus) and pip to install things into Python. Type the following command:

pi@myrobot:~ $ sudo apt-get install -y git python3-pip python3-smbus i2c-tools

To get the library for the motor board, Raspi_MotorHAT, we use Git and download it from GitHub, installing it for use in any of your scripts with the following command: