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Intel Galileo Blueprints

By : Marco Schwartz

5 (1)

Intel Galileo Blueprints

5 (1)

By: Marco Schwartz

Overview of this book

If you are an experienced developer using classic Arduino boards and would like to extend your knowledge to the Intel Galileo board and polish your project building skills, this book is for you.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Setting Up the Galileo Board and the Development Environment

1. Setting Up the Galileo Board and the Development Environment

What is Arduino?

2. Creating a Weather Measurement and Data Logging Station

2. Creating a Weather Measurement and Data Logging Station

Hardware and software requirements

Configuring the hardware

Testing the sensors

Logging data onto the SD card

Summary

3. Controlling Outputs Using the Galileo Board

3. Controlling Outputs Using the Galileo Board

Hardware and software requirements

Assembling the relay controller

Using the relay controller

Assembling the servomotor controller

Using the servomotor controller

Summary

4. Monitoring Data Remotely

4. Monitoring Data Remotely

Hardware and software requirements

Installing the Linux image

Configuring the hardware

Accessing measurements remotely

Summary

5. Interacting with Web APIs

5. Interacting with Web APIs

Using Express to structure our application

Getting the current weather forecast

Posting data on Twitter

Summary

6. Internet of Things with Intel Galileo

6. Internet of Things with Intel Galileo

Logging your data in the cloud

Monitoring your data in the cloud

Storing and plotting your data in the cloud

Summary

7. Controlling Your Galileo Projects from Anywhere

7. Controlling Your Galileo Projects from Anywhere

Hardware and software requirements

Hardware configuration

Building an interface to control the relay

Accessing the interface from anywhere

Removing the need for a third party

Summary

8. Displaying the Number of Unread Gmail E-mails on an LCD Screen

8. Displaying the Number of Unread Gmail E-mails on an LCD Screen

Hardware and software requirements

Hardware configuration

Testing the LCD screen

Printing the unread e-mails on the LCD screen

Summary

9. Automated Remote Gardening with Intel Galileo

9. Automated Remote Gardening with Intel Galileo

Hardware and software requirements

Hardware configuration

Testing all the sensors

Automating your garden

Connecting the project to the cloud

Summary

10. Building a Complete Home Automation System

10. Building a Complete Home Automation System

Hardware and software requirements

Hardware configuration

Testing the Wi-Fi connection

Building the home automation interface

Summary

11. Building a Mobile Robot Controlled by the Intel Galileo Board

11. Building a Mobile Robot Controlled by the Intel Galileo Board

Hardware and software requirements

Hardware configuration

Testing the robot

Autonomous navigation

Summary

12. Controlling the Galileo Board from the Web in Real Time Using MQTT

12. Controlling the Galileo Board from the Web in Real Time Using MQTT

Hardware and software requirements

Hardware configuration

The MQTT protocol

Creating a PubNub account

Writing the code for the project

Monitoring your board remotely

Controlling the relay remotely

Summary

Index

Index

Using the relay controller

Now that we have assembled the relay controller, we will build the Arduino sketch to make the circuit do as we like. We will create the sketch in such a way that it will be able to control the relay through the push button. To do so, you will need to follow the code given in these steps:

First, we will declare the relay and the button pins. The relay is pin 7, while the button is pin 8. To do this, follow the code:
```
int relayPin = 7;
int buttonPin = 8;
```

Next, we will create variables for the button states:

int buttonState;
int lastButtonState = LOW;   
int previousButtonState = LOW;

To debounce the button and achieve a stable state for the relay, we will add the following code. We will declare a default last debounce time and debounce delay:
```
long lastDebounceTime = 0;
long debounceDelay = 50;
```
Then, we will create a variable for the state of the relay:
```
int relayState = LOW;
```
Inside the setup() function of the sketch, we will set the pins for the relay and the button. The button...

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83

Tech Concepts

36

Programming languages

73

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