Search icon
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletters
Free Learning
Arrow right icon
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

Testing the sensors

In this section, we will test the ultrasonic sensor and the line-following sensor that come with the robotics kit. We will start by testing the ultrasonic sensor.

Ultrasonic sensor

Ultrasonic sensors are generally used in obstacle-avoidance applications. They use the time of flight principle to measure the distance between objects. The sensor transmits a sound signal at a known frequency in the ultrasonic spectrum. The sound signal bounces off the surface of obstacles back to the sensor. The time elapsed since the transmission of the signal is used to calculate the distance between the sensor and the object. The distance between objects is calculated as follows:

Speed = Distance / Time

Distance = (Speed of Sound x Time) / 2

We divide by two because the sound has to travel twice between the obstacle and the sensor.

You can learn about ultrasonic sensors at https://bit.ly/3xeqpS2.

The ultrasonic sensor can be installed on both the front and...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €14.99/month. Cancel anytime}