Book Image

Mastering Arduino

By : Jon Hoffman
Book Image

Mastering Arduino

By: Jon Hoffman

Overview of this book

Mastering Arduino is an all-in-one guide to getting the most out of your Arduino. This practical, no-nonsense guide teaches you all of the electronics and programming skills that you need to create advanced Arduino projects. This book is packed full of real-world projects for you to practice on, bringing all of the knowledge in the book together and giving you the skills to build your own robot from the examples in this book. The final two chapters discuss wireless technologies and how they can be used in your projects. The book begins with the basics of electronics, making sure that you understand components, circuits, and prototyping before moving on. It then performs the same function for code, getting you into the Arduino IDE and showing you how to connect the Arduino to a computer and run simple projects on your Arduino. Once the basics are out of the way, the next 10 chapters of the book focus on small projects centered around particular components, such as LCD displays, stepper motors, or voice synthesizers. Each of these chapters will get you familiar with the technology involved, how to build with it, how to program it, and how it can be used in your own projects.

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Table of Contents (23 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
The Arduino
The Arduino
History of the Arduino
Touring the Arduino UNO R3
Powering the Arduino
Arduino shields
Arduino pin
Different Arduino boards
Summary
2
Basic Electronics
Basic Electronics
Electronic building block
Multimeter
Electronic components
What is electricity?
Current
Voltage
Resistance
Ohm's law
What is power?
Resistor color codes
Summary
3
Circuit Diagrams
Circuit Diagrams
What is a circuit?
Fritzing
Fritzing diagrams
Schematic diagrams
Parallel and series circuits
Series circuits
Parallel circuits
Voltage drop
Light up LED
Summary
4
Basic Prototyping
Basic Prototyping
Setting up a work area
Using a solderless breadboard
Dupont (jumper) cables
Prototyping
First prototype
Summary
5
Arduino IDE
Arduino IDE
Arduino Sketch
Arduino IDE
Arduino web editor
Examples
Arduino libraries
Serial monitor
Hello World
Echo
Summary
6
Programming the Arduino - The Basics
Programming the Arduino - The Basics
Curly brackets
Semicolons
Comments
Variables
Data types
Arrays
Character arrays
Constants
Arithmetic functions
Comparison operators
Logical operators
Casting
Decision making
Looping
Functions
Summary
7
Programming the Arduino - Beyond the Basics
Programming the Arduino - Beyond the Basics
Setting digital pin mode
Digital write
Digital read
Analog write
Analog read
Structures
Unions
Adding tabs
Working with tabs
Object-oriented programming
String library
Summary
8
Motion Sensor
Motion Sensor
Introduction
Components needed
Circuit diagrams
Code
Running the project
Challenge
Summary
9
Environment Sensors
Environment Sensors
Introduction
Components needed
Circuit diagrams
Code
Running the project
Challenge
Summary
10
Obstacle Avoidance and Collision Detection
Obstacle Avoidance and Collision Detection
Introduction
Components needed
Circuit diagrams
Code
Running the project
Challenge
Summary
11
Fun with Lights
Fun with Lights
Introduction
Components needed
Circuit diagrams
Code
Running the project
Challenge
Summary
12
Fun with Sound
Fun with Sound
Introduction
Components needed
Circuit diagrams
Code
Challenge
Summary
13
Using LCD Displays
Using LCD Displays
Introduction
Components needed
Circuit diagrams
Code
Challenge
Summary
14
Speech Recognition and Voice Synthesizing
Speech Recognition and Voice Synthesizing
Introduction
Components needed
Circuit diagrams
Code
Running the project
Challenge
Summary
15
DC Motors and Motor Controllers
DC Motors and Motor Controllers
Introduction
Components needed
Circuit diagrams
Code
Running the project
Challenge
Summary
16
Servo Motors
Servo Motors
Introduction
Components needed
Circuit diagrams
Code
Challenge
Summary
17
Using a Relay
Using a Relay
Introduction
Components needed
Circuit diagrams
Code
Challenge
Summary
18
Remotely Controlling the Arduino
Remotely Controlling the Arduino
Introduction
Components needed
Circuit diagrams
Code
Challenge
Summary
19
Creating a Robot
Creating a Robot
Introduction
Chassis and movement
Motors and power
Autonomous robot–obstacle avoidance and collision detection
Remotely controlling a robot
User feedback
Making things rotate
Non-robotic projects
Proximity sensor
Challenge
Summary
20
Bluetooth LE
Bluetooth LE
Introduction
Bluetooth LE radio
Components needed
Circuit diagrams
Project 1 – serial communication
Project 2 – controlling LED
Project 3 – environmental sensor
What is new with Bluetooth 4.1, 4.2 and 5.0?
Challenge
Summary
21
Bluetooth Classic
Bluetooth Classic
Introduction
Bluetooth radio
Components needed
Circuit diagrams
Project 1 – configuring the Bluetooth modules
Project 2 – serial connection, sending data
Project 3 – joystick remote control
Summary
22
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Project 1 – configuring the Bluetooth modules

To communicate with the HC-05 Bluetooth module, we will use the same SoftwareSerial library that we used in Chapter 20, Bluetooth LE. The code that is used to communicate is very similar between the HM-10 (Bluetooth LE) and the HC-05 (Bluetooth Classic). How the two radios transmit and receive the data is a lot different, therefore understanding how the radios work and what they should be used for will define when to use the different technologies.

For this first project, we will be writing an application that will allow us to configure the Bluetooth modules. This code will start off exactly as we did with the Bluetooth LE code by including the SoftwareSerial library and creating an instance of the SoftwareSerial type. The following code shows how to do this:

#include <SoftwareSerial.h>
SoftwareSerial HC05(10, 11);
bool...
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