You're reading from BBC Micro:bit in Practice A hands-on guide to building creative real-life projects with MicroPython and the BBC Micro:bit

Product type Paperback

Published in Dec 2022

Publisher Packt

ISBN-13 9781804610121

Length 292 pages

Edition 1st Edition

Tools

Micro:bit

Concepts

Embedded Systems

Authors (3):

Sandeep Saini

Ashwin Pajankar

Abhishek Sharma

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Table of Contents (22) Chapters

Preface

1. Part 1: Getting Started with the BBC Micro:bit

2. Chapter 1: Introduction to the BBC Micro:bit FREE CHAPTER

3. Chapter 2: Setting Up the Micro:bit and Using Code Editors

4. Chapter 3: Python Programming Essentials

5. Chapter 4: Advanced Python

6. Part 2: Programming Hardware with MicroPython

7. Chapter 5: Built-in LED Matrix Display and Push Buttons

8. Chapter 6: Interfacing External LEDs

9. Chapter 7: Programming External Push Buttons, Buzzers, and Stepper Motors

10. Part 3: Filesystems and Programming Analog I/O

11. Chapter 8: Exploring the Filesystem

12. Chapter 9: Working with Analog Input and PWM

13. Part 4: Advanced Hardware Interfacing and Applications

14. Chapter 10: Working with Acceleration and Direction

15. Chapter 11: Working with NeoPixels and a MAX7219 Display

16. Chapter 12: Producing Music and Speech

17. Chapter 13: Networking and Radio

18. Chapter 14: Advanced Features of the Micro:bit

19. Chapter 15: Wearable Computing and More Programming Environments

20. Index

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21. Other Books You May Enjoy

Compasses

Also known as a magnetometer, a compass measures the magnetic fields and is also an essential instrument for drones and aircraft to check the direction for navigation-related applications. In Micro:bit, as shown in Figure 10.7, the compass is mounted on the board. The functionality of the compass is such that it finds North at 0 degrees and 315 degrees as North West:

Figure 10.7 – Micro:bit with a compass, illustrating directions with degrees (courtesy: https://microbit.org/projects/make-it-code-it/compass-north/)

From the figure, we can observe that South is at 180 degrees, East is at 90 degrees, and West is at 270 degrees. Hence, now, it is easier to track the direction using the compass, but first, we need to calibrate the compass. The compass.calibrate() function is used to perform the calibration:

from microbit import *
compass.calibrate()

In this process, the Micro:bit display panel will display the Tilt to fill screen message,...

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You're reading from BBC Micro:bit in Practice A hands-on guide to building creative real-life projects with MicroPython and the BBC Micro:bit

Table of Contents (22) Chapters

Compasses

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Authors (3)

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