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Raspberry Pi Pico DIY Workshop

You're reading from   Raspberry Pi Pico DIY Workshop Build exciting projects in home automation, personal health, gardening, and citizen science

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Product type Paperback
Published in May 2022
Publisher Packt
ISBN-13 9781801814812
Length 376 pages
Edition 1st Edition
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Authors (2):
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Sai Yamanoor Sai Yamanoor
Author Profile Icon Sai Yamanoor
Sai Yamanoor
Srihari Yamanoor Srihari Yamanoor
Author Profile Icon Srihari Yamanoor
Srihari Yamanoor
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Toc

Table of Contents (17) Chapters Close

Preface 1. Section 1: An Introduction to the Pico
2. Chapter 1: Getting Started with the Raspberry Pi Pico FREE CHAPTER 3. Chapter 2: Serial Interfaces and Applications 4. Chapter 3: Home Automation Projects 5. Chapter 4: Fun with Gardening! 6. Section 2: Learning by Making
7. Chapter 5: Building a Weather Station 8. Chapter 6: Designing a Giant Seven-Segment Display 9. Chapter 7: Designing a Visual Aid for Tracking Air Quality 10. Section 3: Advanced Topics
11. Chapter 8: Building Wireless Nodes 12. Chapter 9: Let's Build a Robot! 13. Chapter 10: Designing TinyML Applications 14. Chapter 11: Let's Build a Product! 15. Chapter 12: Best Practices for Working with the Pico 16. Other Books You May Enjoy

Motor selection and control

In this section, we will discuss the various motor options available to build a robot. For a typical desktop robot, the various motor options include the following:

  • Direct Current (DC) motors
  • Stepper motors
  • Servo motors

Let's discuss the applications of these motors.

DC motors

DC motors are ideal for wheeled robots. The following figure shows the DC motors used to drive the wheels of our robot. DC motors are widely used in toys because of their low cost and their small size. The DC motors used in our robot come with an in-built gearbox to reduce the revolutions per minute (rpm) and make it suitable for a wheeled robot.

DC motors are typically operated using an H-bridge circuit. This enables the speed and direction of travel to be controlled.

Figure 9.11 – DC motors on the robot

Stepper motors

Stepper motors are ideal for positioning applications. For example, stepper motors can be...

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