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DIY Microcontroller Projects for Hobbyists

You're reading from DIY Microcontroller Projects for Hobbyists

Product type Book

Published in Jul 2021

Publisher Packt

ISBN-13 9781800564138

Pages 320 pages

Edition 1st Edition

Languages

Concepts

Microcontroller

Authors (2):

Miguel Angel Garcia-Ruiz

Pedro Cesar Santana Mancilla

View More author details

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

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

Understanding electrical noise from push buttons

Electrical noise can be generated in many push buttons. This can negatively affect the functionality of an electronic circuit where the push button is connected, and it can have unpredictable results in a microcontroller board.

A common problem with push buttons is that they are not perfect. They don't close their switch instantly, and in many cases, electrical noise can be produced. This may happen because not all the push buttons are free of manufacturing errors. If we try to connect a push button directly to a microcontroller's I/O port, every time we press the button, it seems that we do it right. To us, it seems like we pressed it only once. However, to the microcontroller board, it looks like the button was pressed many times for extremely short periods of time, and this is because of electrical noise that is generated in the push button. Electrical noise can be defined as random electrical levels or signals coupling...

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Authors (2)

Miguel Angel Garcia-Ruiz

Miguel Angel Garcia-Ruiz is an Associate Professor of Computer Science at the School of Computer Science and Technology, Algoma University, Canada. He has taught microcontroller programming and interfacing, human-computer interaction, and interaction design courses. Miguel has a PhD in Computer Science and Artificial Intelligence from Sussex University, England. He has published articles on tinkering with technology applying microcontroller boards. Miguel has conducted research projects funded by Canada's Northern Ontario Heritage Fund (NOHFC), Algoma University, and the Mexican Ministry of Education.

See other products by Miguel Angel Garcia-Ruiz

Pedro Cesar Santana Mancilla

Pedro Cesar Santana Mancilla is a research professor at the School of Telematics at the University of Colima in Mexico. His research interests focus on human-computer interaction, ICT for elderly people, Internet of Things, and machine learning. He is currently serving as president of the Mexican Association on Human-Computer Interaction (AMexIHC). He is a Senior Member of the IEEE, and ACM and serves as Chair of the Mexican ACM SIGCHI Chapter (CHI-Mexico). Pedro is a member of the Mexican Academy of Computing (AMexComp) and the Mexican Society of Computer Science (SMCC).

See other products by Pedro Cesar Santana Mancilla

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