8. Avoiding Obstacles Using Sensors | Arduino Robotic Projects

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Arduino Robotic Projects

By : Richard Grimmett

4.3 (10)

Arduino Robotic Projects

4.3 (10)

By: Richard Grimmett

Overview of this book

This book is for anyone who has been curious about using Arduino to create robotic projects that were previously the domain of research labs of major universities or defense departments. Some programming background is useful, but if you know how to use a PC, you can, with the aid of the step-by-step instructions in this book, construct complex robotic projects that can roll, walk, swim, or fly.

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. Powering on Arduino

1. Powering on Arduino

Selecting the right Arduino board

Powering up Arduino

Summary

2. Getting Started with the Arduino IDE

2. Getting Started with the Arduino IDE

Using a Windows machine to develop with Arduino

Running the IDE for Uno

Running the IDE for Mega

Running the IDE for the Adafruit FLORA

Using a Mac to develop using Arduino

Summary

3. Simple Programming Concepts Using the Arduino IDE

3. Simple Programming Concepts Using the Arduino IDE

Creating, editing, and saving files on Arduino

Basic C programming on Arduino

Basic programming constructs on Arduino

Summary

4. Accessing the GPIO Pins

4. Accessing the GPIO Pins

The GPIO capability of Arduino

The first external hardware connection

The Arduino IDE and LED code

Summary

5. Working with Displays

5. Working with Displays

A simple serial display

Enabling the serial display in the IDE

Connecting a display using the SPI interface

Enabling the SPI display in the IDE

An LCD shield

Enabling the LCD display in the IDE

Summary

6. Controlling DC Motors

6. Controlling DC Motors

The basics of DC motor

Connecting a DC motor directly to Arduino

Connecting a DC motor using an H-bridge and Arduino

Controlling the DC motor using a shield

The Arduino code for the DC motor shield

Summary

7. Controlling Servos with Arduino

7. Controlling Servos with Arduino

The basics of a servo motor

Connecting a servo motor directly to Arduino

Controlling the servos with a program

Connecting a servo motor shield to Arduino

Controlling the servo motor shield with a program

Summary

8. Avoiding Obstacles Using Sensors

8. Avoiding Obstacles Using Sensors

An overview of the sensors

Connecting a sonar sensor to Arduino

Accessing the sonar sensor from the Arduino IDE

Connecting an IR sensor to Arduino

Accessing the IR sensor from the Arduino IDE

Creating a scanning sensor platform

Summary

9. Even More Useful Sensors

9. Even More Useful Sensors

Connecting a digital compass to Arduino

Accessing the compass from the Arduino IDE

Connecting an accelerometer/gyro to Arduino

Accessing the accelerometer from the Arduino IDE

Connecting an altimeter/pressure sensor to Arduino

Accessing the altimeter/pressure sensor from the Arduino IDE

Summary

10. Going Truly Mobile – the Remote Control of Your Robot

10. Going Truly Mobile – the Remote Control of Your Robot

Connecting a simple RF interface to Arduino

Enabling a simple RF interface in the Arduino IDE

Connecting an XBee interface to Arduino

Enabling an XBee interface in the Arduino IDE

Connecting a Bluetooth shield to Arduino

Connecting a Wi-Fi shield to Arduino

Enabling the Wi-Fi shield in the Arduino IDE

Connecting a GSM/GPRS shield to Arduino

Summary

11. Using a GPS Device with Arduino

11. Using a GPS Device with Arduino

GPS tutorial

Connecting a GPS device directly to Arduino

Accessing the GPS device from the Arduino IDE

Connecting a GPS shield to Arduino

Accessing the GPS shield from the Arduino IDE

Summary

12. Taking Your Robot to Sea

12. Taking Your Robot to Sea

Building an automated sailing platform

Building an Arduino-powered underwater ROV

Summary

13. Robots That Can Fly

13. Robots That Can Fly

Building an Arduino-operated plane

Building a quadcopter platform

Summary

14. Small Projects with Arduino

14. Small Projects with Arduino

Small robots and Arduino

Wearable Arduino projects

Summary

Index

Index

Accessing the sonar sensor from the Arduino IDE

Now that the HW is connected, you'll want to download a library that supports this sensor. One of the better libraries for this sensor is available at https://code.google.com/p/arduino-new-ping/. Download the NewPing library and then open the Arduino IDE. You can include the library in the IDE by navigating to Sketch | Import Library | Add Library | Downloads and selecting the NewPing ZIP file. Once you have the library installed, you can access the example program by navigating to File | Examples | NewPing | NewPingExample as shown in the following screenshot:

You will then see the following code in the IDE:

Now, upload the code to Arduino and open a serial terminal by navigating to Tools | Serial Monitor in the IDE. Initially, you will see characters that make no sense; you need to change the serial port baud rate to 115200 baud by selecting this field in the lower-right corner of Serial Monitor, as shown in the following screenshot:

Now...

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