You're reading from DIY Microcontroller Projects for Hobbyists The ultimate project-based guide to building real-world embedded applications in C and C++ programming

Product type Paperback

Published in Jul 2021

Publisher Packt

ISBN-13 9781800564138

Length 320 pages

Edition 1st Edition

Languages

Tools

ARM Cortex

Concepts

Microcontroller

Authors (2):

Miguel Angel Garcia-Ruiz

Pedro Cesar Santana Mancilla

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Table of Contents (16) Chapters

Preface

1. Chapter 1: Introduction to Microcontrollers and Microcontroller Boards

2. Chapter 2: Software Setup and C Programming for Microcontroller Boards FREE CHAPTER

3. Chapter 3: Turning an LED On or Off Using a Push Button

4. Chapter 4: Measuring the Amount of Light with a Photoresistor

5. Chapter 5: Humidity and Temperature Measurement

6. Chapter 6: Morse Code SOS Visual Alarm with a Bright LED

7. Chapter 7: Creating a Clap Switch

8. Chapter 8: Gas Sensor

9. Chapter 9: IoT Temperature-Logging System

10. Chapter 10: IoT Plant Pot Moisture Sensor

11. Chapter 11: IoT Solar Energy (Voltage) Measurement

12. Chapter 12: COVID-19 Digital Body Temperature Measurement (Thermometer)

13. Chapter 13: COVID-19 Social-Distancing Alert

14. Chapter 14: COVID-19 20-Second Hand Washing Timer

15. Other Books You May Enjoy

Summary

What did we learn in this project? Firstly, we learned how to connect a piezoelectric buzzer to our Blue Pill microcontroller board and code a program to play an audible alarm. Then, we wrote a program to measure the distance between our electronic device and another object.

We also learned how to combine the two projects to create a social-distancing device that can be used to maintain a safe physical distance in this COVID-19 pandemic—for example, in schools, because children are more distracted and are more friendly and sociable.

It is important to remind you that this project is intended for learning purposes and should not be used as a primary alarm for preventing the risk of COVID-19 contagion in any circumstances. This is mainly because, at this time, we know that the main risk is airborne.

In the next chapter, we will learn to build a 20-second hand-washing timer.