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Raspberry Pi Pico DIY Workshop

You're reading from  Raspberry Pi Pico DIY Workshop

Product type Book
Published in May 2022
Publisher Packt
ISBN-13 9781801814812
Pages 376 pages
Edition 1st Edition
Languages
Authors (2):
Sai Yamanoor Sai Yamanoor
Profile icon Sai Yamanoor
Srihari Yamanoor Srihari Yamanoor
Profile icon Srihari Yamanoor
View More author details

Table of Contents (17) Chapters

Preface 1. Section 1: An Introduction to the Pico
2. Chapter 1: Getting Started with the Raspberry Pi Pico 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

Interfacing the stepper motor

In this section, we will discuss interfacing a stepper motor with the Raspberry Pi Pico using the DRV8833 Stepper Motor Driver. This will enable us to build a display where the stepper motor will point to the corresponding air quality category.

Motor Selection

For this project, we chose a stepper motor that is used in automotive gauges. This is because the motor has a total movement range of 315°. It also comes with a needle that is useful in building our visual aid. Motor selection for an application involves several factors. We recommend the following article from SparkFun: https://bit.ly/3qyYxnX.

The first step is to wire up the stepper motor driver to the Raspberry Pi Pico. Figure 7.21 shows the connections of the stepper motor driver to the Pico. The stepper motor driver is connected as follows where the left-hand side of the arrow refers to a pin available on the Raspberry Pi Pico while the right refers to a pin on the DRV8833 stepper...

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