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

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

This chapter describes how to build a very noticeable visual alarm with a super-bright LED connected to a microcontroller board. The LED will show an SOS message (this is used when someone or a group of people is in danger or in distress). In this chapter, you will learn how to control a super-bright LED with a microcontroller board. The reason we are using a super-bright LED in this chapter is to increase the visibility of the SOS message with it. This chapter will be beneficial for future electronic projects because you will learn how to control an LED with a transistor working as a switch. The application made in this chapter can be used by people in distress while they are hiking, at sea, and in similar scenarios.

In this chapter, we are going to cover the following main topics: