DIY Microcontroller Projects for Hobbyists: The ultimate project-based guide to building real-world embedded applications in C and C++ programming

by Miguel Angel Garcia-Ruiz, Pedro Cesar Santana Mancilla

Length: 320 pages
Edition: 1
Language: English
Publisher: Packt Publishing
Publication Date: 2021-07-30
ISBN-10: 1800564139
ISBN-13: 9781800564138
Sales Rank: #436538 (See Top 100 Books)

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A practical guide to building PIC and STM32 microcontroller board applications with C and C++ programming

Key Features

Discover how to apply microcontroller boards in real life to create interesting IoT projects
Create innovative solutions to help improve the lives of people affected by the COVID-19 pandemic
Design, build, program, and test microcontroller-based projects with the C and C++ programming language

Book Description

We live in a world surrounded by electronic devices, and microcontrollers are the brains of these devices. Microcontroller programming is an essential skill in the era of the Internet of Things (IoT), and this book helps you to get up to speed with it by working through projects for designing and developing embedded apps with microcontroller boards.

DIY Microcontroller Projects for Hobbyists are filled with microcontroller programming C and C++ language constructs. You’ll discover how to use the Blue Pill (containing a type of STM32 microcontroller) and Curiosity Nano (containing a type of PIC microcontroller) boards for executing your projects as PIC is a beginner-level board and STM-32 is an ARM Cortex-based board. Later, you’ll explore the fundamentals of digital electronics and microcontroller board programming. The book uses examples such as measuring humidity and temperature in an environment to help you gain hands-on project experience. You’ll build on your knowledge as you create IoT projects by applying more complex sensors. Finally, you’ll find out how to plan for a microcontroller-based project and troubleshoot it.

By the end of this book, you’ll have developed a firm foundation in electronics and practical PIC and STM32 microcontroller programming and interfacing, adding valuable skills to your professional portfolio.

What you will learn

Get to grips with the basics of digital and analog electronics
Design, build, program, and test a microcontroller-based system
Understand the importance and applications of STM32 and PIC microcontrollers
Discover how to connect sensors to microcontroller boards
Find out how to obtain sensor data via coding
Use microcontroller boards in real life and practical projects

Who this book is for

This STM32 PIC microcontroller book is for students, hobbyists, and engineers who want to explore the world of embedded systems and microcontroller programming. Beginners, as well as more experienced users of digital electronics and microcontrollers, will also find this book useful. Basic knowledge of digital circuits and C and C++ programming will be helpful but not necessary.

Introduction to Microcontrollers and Microcontroller Boards.
Software Setup and C Programming for Microcontroller Boards
Turning an LED On or Off Using a Push Button
Measuring the Amount of Light with a Photoresistor
Humidity and Temperature Measurement
Morse Code SOS Visual Alarm with a Bright LED
Creating a Clap switch
Gas sensor
IoT Temperature-Logging System
IoT Plant Pot Moisture Sensor
IoT Solar Energy (Voltage) Measurement
Covid-19 Digital Body Temperature Measurement (Thermometer)
Covid-19 Social Distancing Alert
COVID-19 20-Second Hand Washing Timer

DIY Microcontroller Projects for Hobbyists
Contributors
About the authors
About the reviewers
Preface
    Who this book is for
    What this book covers
    To get the most out of this book
    Download the example code files
    Code in Action
    Download the color images
    Conventions used
    Get in touch
    Share Your Thoughts
Chapter 1: Introduction to Microcontrollers and Microcontroller Boards
    Technical requirements
    Introduction to microcontrollers
        Microcontroller boards
    An overview of analog and digital electronics necessary for carrying out the book's projects
        Basic electronic components
        The diode
        The solderless breadboard
    Description of the Blue Pill and Curiosity Nano microcontroller boards
        Installing the IDEs
    Your first project – a blinking LED
        Running the blinking LED example with the Blue Pill board
        Running the blinking LED example on the Curiosity Nano board
    Summary
    Further reading
Chapter 2: Software Setup and C Programming for Microcontroller Boards
    Technical requirements
    Introducing the C programming language
        The basic structure of the C language
    Introducing Curiosity Nano microcontroller board programming
    Introducing Blue Pill microcontroller board programming
    Example – Programming and using the microcontroller board's internal LED
        Programming the Blue Pill's internal LED
    Summary
    Further reading
Chapter 3: Turning an LED On or Off Using a Push Button
    Technical requirements
    Introducing push buttons
    Understanding electrical noise from push buttons
        Debouncing a push button via hardware
        Debouncing a push button via software 
    Connecting an LED to a microcontroller board port and using an internal pull-up resistor
        Debouncing a push button via software connected to the Blue Pill
        Turning an LED on or off with a push button on the Curiosity Nano
    Testing out the push button
    Summary
    Further reading
Chapter 4: Measuring the Amount of Light with a Photoresistor
    Technical requirements
    Understanding sensors
        Defining sensors
        What are sensor modules?
    Introducing photoresistors
    Connecting a photoresistor to a microcontroller board port
        Connecting a photoresistor to a Blue Pill board
    Coding the photoresistor values and setting up ports
        Connecting a photoresistor to a Curiosity Nano board
        Connecting a photoresistor sensor module to the microcontroller boards
    Testing out the photoresistor
    Summary
    Further reading
Chapter 5: Humidity and Temperature Measurement
    Technical requirements
    Introducing the DHT11 humidity and temperature sensor module
        What is relative humidity?
        The DHT11 pins and their values
    Connecting a DHT11 sensor module to the microcontroller boards
        Connecting the DHT11 to the Blue Pill board
        Connecting an LCD to the Blue Pill
        Connecting an LM35 temperature sensor to the Curiosity Nano board
    Coding to get data from the sensor module
        Programming the DHT11 sensor for the Blue Pill board
        Coding the sensor module and the 1602 LCD 
        Programming the LM35 sensor on the Curiosity Nano board
    Showing the humidity and temperature data results on the serial port monitor
        Plotting the data
    Summary
    Further reading
Chapter 6: Morse Code SOS Visual Alarm with a Bright LED
    Technical requirements
    Understanding Morse code and the SOS message
    Introducing super-bright LEDs and calculating their necessary resistors
    Connecting the resistor and the super-bright LED to the microcontroller board
        Connecting the super-bright LED to the Curiosity Nano
    Coding the SOS Morse code signal
        The SOS message code for the Curiosity Nano
    Testing the visual alarm
    Summary
    Further reading
Chapter 7: Creating a Clap Switch
    Technical requirements
    Connecting a microphone to a microcontroller board port
        Understanding the electret microphone module
        Connecting the components 
    Coding your clap switch sketch
    Coding a clap switch with two clapping sounds 
    Coding a clap switch with a timer between claps 
    Improving the project performance
    Summary
    Further reading
Chapter 8: Gas Sensor
    Technical requirements
    Introducing the MQ-2 gas sensor
    Connecting a gas sensor to the STM32 microcontroller board
        Interfacing for digital reading
        Interfacing for analog reading
    Writing a program to read the gas concentration over the sensor board
        Coding for digital reading
        Coding for analog reading
    Testing the system
    Summary
    Further reading
Chapter 9: IoT Temperature-Logging System
    Technical requirements
    Connecting a temperature sensor to the Blue Pill board
        Introducing the DS18B20 temperature sensor module
        Connecting the components
    Coding a temperature reading system
    Learning to connect the ESP8266 module
        An introduction to the ESP8266 Wi-Fi module
        Connecting an ESP8266 Wi-Fi module
    Coding a program to send the sensed temperature to the internet
    Connecting the STM32 Blue Pill board to the internet
    Summary
    Further reading
Chapter 10: IoT Plant Pot Moisture Sensor
    Technical requirements
    Connecting a soil moisture sensor to the Blue Pill board
        Introducing soil moisture sensors
        Connecting the components 
    Reading data from the soil moisture sensor module
    Coding a program to send the sensed data to the internet
    Showing sensor data results over the internet
    Summary
    Further reading
Chapter 11: IoT Solar Energy (Voltage) Measurement
    Technical requirements
    Connecting a solar panel to the Blue Pill board
        Introducing the solar panel
        The B25 voltage sensor
        Connecting the components
    Reading data from a voltage sensor module
    Coding a program to send the sensed data to the internet
    Showing sensor data results over the internet
    Summary
    Further reading
Chapter 12: COVID-19 Digital Body Temperature Measurement (Thermometer)
    Technical requirements
    Programming the I2C interface
        The I2C protocol
        I2C coding
        Coding the Arduino Uno software (peripheral)
        Coding the Blue Pill software (controller)
    Connecting an IR temperature sensor to the microcontroller board
        The MLX90614 IR sensor
        The GY-906 sensor module
        Connection of the IR sensor to an Arduino Uno
        Connecting the Blue Pill to the Arduino Uno
    Showing the temperature on an LCD
    Testing the thermometer
    Summary
    Further reading
Chapter 13: COVID-19 Social-Distancing Alert
    Technical requirements
    Programming a piezoelectric buzzer
        Connecting the components
    Connecting an ultrasonic sensor to the microcontroller board
        Connecting the components 
    Writing a program for getting data from the ultrasonic sensor
    Testing the distance meter
    Summary
    Further reading
Chapter 14: COVID-19 20-Second Hand Washing Timer
    Technical requirements
    Programming the counter (timer) 
    Showing the timer on an LCD
    Connecting an ultrasonic sensor to the microcontroller board
        What is an ultrasonic sensor?
        How does an ultrasonic sensor work?
    Putting everything together – think of a protective case for the project!
    Testing the timer
    Summary
    Further reading
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