book

DIY Microcontroller Projects for Hobbyists

by Miguel Angel Garcia-Ruiz, Pedro Cesar Santana Mancilla

July 2021

Intermediate to advanced

320 pages

6h 31m

English

Packt Publishing

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ContributorsAbout the authorsAbout the reviewers
Who this book is forWhat this book coversTo get the most out of this bookDownload the example code filesCode in ActionDownload the color imagesConventions usedGet in touchShare Your Thoughts
Technical requirementsIntroduction to microcontrollersMicrocontroller boardsAn overview of analog and digital electronics necessary for carrying out the book's projectsBasic electronic componentsThe diodeThe solderless breadboardDescription of the Blue Pill and Curiosity Nano microcontroller boardsInstalling the IDEsYour first project – a blinking LEDRunning the blinking LED example with the Blue Pill boardRunning the blinking LED example on the Curiosity Nano boardSummaryFurther reading
Technical requirementsIntroducing the C programming languageThe basic structure of the C languageIntroducing Curiosity Nano microcontroller board programmingIntroducing Blue Pill microcontroller board programmingExample – Programming and using the microcontroller board's internal LEDProgramming the Blue Pill's internal LEDSummaryFurther reading
Technical requirementsIntroducing push buttonsUnderstanding electrical noise from push buttonsDebouncing a push button via hardwareDebouncing a push button via software Connecting an LED to a microcontroller board port and using an internal pull-up resistorDebouncing a push button via software connected to the Blue PillTurning an LED on or off with a push button on the Curiosity NanoTesting out the push buttonSummaryFurther reading
Technical requirementsUnderstanding sensorsDefining sensorsWhat are sensor modules?Introducing photoresistorsConnecting a photoresistor to a microcontroller board portConnecting a photoresistor to a Blue Pill boardCoding the photoresistor values and setting up portsConnecting a photoresistor to a Curiosity Nano boardConnecting a photoresistor sensor module to the microcontroller boardsTesting out the photoresistorSummaryFurther reading
Technical requirementsIntroducing the DHT11 humidity and temperature sensor moduleWhat is relative humidity?The DHT11 pins and their valuesConnecting a DHT11 sensor module to the microcontroller boardsConnecting the DHT11 to the Blue Pill boardConnecting an LCD to the Blue PillConnecting an LM35 temperature sensor to the Curiosity Nano boardCoding to get data from the sensor moduleProgramming the DHT11 sensor for the Blue Pill boardCoding the sensor module and the 1602 LCD Programming the LM35 sensor on the Curiosity Nano boardShowing the humidity and temperature data results on the serial port monitorPlotting the dataSummaryFurther reading
Technical requirementsUnderstanding Morse code and the SOS messageIntroducing super-bright LEDs and calculating their necessary resistorsConnecting the resistor and the super-bright LED to the microcontroller boardConnecting the super-bright LED to the Curiosity NanoCoding the SOS Morse code signalThe SOS message code for the Curiosity NanoTesting the visual alarmSummaryFurther reading
Technical requirementsConnecting a microphone to a microcontroller board portUnderstanding the electret microphone moduleConnecting the components Coding your clap switch sketchCoding a clap switch with two clapping sounds Coding a clap switch with a timer between claps Improving the project performanceSummaryFurther reading
Technical requirementsIntroducing the MQ-2 gas sensorConnecting a gas sensor to the STM32 microcontroller boardInterfacing for digital readingInterfacing for analog readingWriting a program to read the gas concentration over the sensor boardCoding for digital readingCoding for analog readingTesting the systemSummaryFurther reading

Technical requirementsConnecting a temperature sensor to the Blue Pill boardIntroducing the DS18B20 temperature sensor moduleConnecting the componentsCoding a temperature reading systemLearning to connect the ESP8266 moduleAn introduction to the ESP8266 Wi-Fi moduleConnecting an ESP8266 Wi-Fi moduleCoding a program to send the sensed temperature to the internetConnecting the STM32 Blue Pill board to the internetSummaryFurther reading
Technical requirementsConnecting a soil moisture sensor to the Blue Pill boardIntroducing soil moisture sensorsConnecting the components Reading data from the soil moisture sensor moduleCoding a program to send the sensed data to the internetShowing sensor data results over the internetSummaryFurther reading
Technical requirementsConnecting a solar panel to the Blue Pill boardIntroducing the solar panelThe B25 voltage sensorConnecting the componentsReading data from a voltage sensor moduleCoding a program to send the sensed data to the internetShowing sensor data results over the internetSummaryFurther reading
Technical requirementsProgramming the I2C interfaceThe I2C protocolI2C codingCoding the Arduino Uno software (peripheral)Coding the Blue Pill software (controller)Connecting an IR temperature sensor to the microcontroller boardThe MLX90614 IR sensorThe GY-906 sensor moduleConnection of the IR sensor to an Arduino UnoConnecting the Blue Pill to the Arduino UnoShowing the temperature on an LCDTesting the thermometerSummaryFurther reading
Technical requirementsProgramming a piezoelectric buzzerConnecting the componentsConnecting an ultrasonic sensor to the microcontroller boardConnecting the components Writing a program for getting data from the ultrasonic sensorTesting the distance meterSummaryFurther reading
Technical requirementsProgramming the counter (timer) Showing the timer on an LCDConnecting an ultrasonic sensor to the microcontroller boardWhat is an ultrasonic sensor?How does an ultrasonic sensor work?Putting everything together – think of a protective case for the project!Testing the timerSummaryFurther reading
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Overview

Dive into the realm of embedded systems with "DIY Microcontroller Projects for Hobbyists." This book introduces you to microcontroller programming through practical projects using STM32 and PIC-based boards. Embark on your journey using C and C++ to implement real-world applications such as IoT sensor systems and COVID-19 solutions.

What this Book will help me do

Understand the fundamentals of microcontroller programming and interfacing.
Learn to design and prototype projects using STM32 and PIC microcontroller boards.
Develop hands-on skills in implementing IoT applications with real-world scenarios.
Master connecting and querying sensors to collect and process data.
Enhance troubleshooting capabilities for optimizing embedded applications.

Author(s)

Miguel Angel Garcia-Ruiz and Pedro Cesar Santana Mancilla are experienced educators, each with over a decade of experience in electronics and computer science. They have a passion for teaching and innovation in embedded systems and bring their expertise to readers through clear explanations and accessible projects, making complex ideas approachable.

Who is it for?

This book is perfect for hobbyists, students, and engineers who are keen to explore the world of microcontroller-based embedded systems. It suits beginners with basic programming or electronics knowledge, and experienced enthusiasts seeking practical real-world projects. It's especially ideal for those aiming to get hands-on with IoT applications.