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Arduino Essentials

By : Perea

5 (5)

Arduino Essentials

5 (5)

By: Perea

Overview of this book

If you are a hobbyist who wants to develop projects based on Arduino as the main microcontroller platform or an engineer interested in finding out what the Arduino platform offers, then this book is ideal for you. Some prior knowledge of the C programming language is required.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Disclaimer

Free Chapter

1. Meeting the Arduino Family

1. Meeting the Arduino Family

A game changer

Common features

Just one to rule them all

Users teaching users

Summary

2. The Arduino Development Environment

2. The Arduino Development Environment

A multiplatform tool

Downloading the package

Installing the software

Installing the drivers

Running the Arduino development environment for the first time

Preflight checks

Uploading our first sketch

Main menus and commands

The Arduino language

Summary

3. Interacting with the Environment the Digital Way

3. Interacting with the Environment the Digital Way

Digital versus analog signals

Our first circuit

Summary

4. Controlling Outputs Softly with Analog Outputs

4. Controlling Outputs Softly with Analog Outputs

Dealing with analog signals

The analog output circuit

Connections diagram

Analog control through code

Motor control with a transistor

Summary

5. Sensing the Real World through Digital Inputs

5. Sensing the Real World through Digital Inputs

Sensing by using inputs

Connecting a button as a digital input

The momentary push button

Complete circuit schematic

Breadboard connections diagram

Writing code to react to a press

Timing and debouncing

Other types of digital sensors

Using an optocoupler as a coin detector

The schematic of the coin detector

The breadboard connections diagram

The complete example code

A real working project

Summary

6. Analog Inputs to Feel Between All and Nothing

6. Analog Inputs to Feel Between All and Nothing

Sensing analog values

The Arduino map function

An ambient light meter

An ambient light meter circuit

DC motor speed control revisited

Summary

7. Managing the Time Domain

7. Managing the Time Domain

Time control functions

Making some noise

A bigger project – a metronome

Summary

8. Communicating with Others

8. Communicating with Others

Serial communications concepts

Other types of serial communication

Calibrating sensors serially

Sending data to Arduino

A computer connected dial thermometer

Summary

9. Dealing with Interrupts

9. Dealing with Interrupts

The concept of an interruption

The tachograph project

A dial tachograph

Summary

10. Arduino in a Real Case – Greenhouse Control

10. Arduino in a Real Case – Greenhouse Control

A greenhouse controller

The greenhouse controller code

Summary

Index

Index

The analog output circuit

Once we know what is going to happen when we deal with analog outputs, I'll show you the circuit we are going to work with.

The analog output circuit

The circuit to connect an LED to a PWM pin

As you can see in the previous schematic, it's very similar to the circuit we used in Chapter 3, Interacting with the Environment the Digital Way, to deal digitally with an LED. However, in this case, we have to connect it to a PWM pin of the Arduino, pin 11 for this example, so that later in the program we can use the corresponding code to deal with it analogically.

The rest of the circuit is just the same as the blinking LED one, and we will use the same 220 Ohms resistance to limit the current that will flow through the LED to no more than 20 mA.

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

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