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  • Book Overview & Buying BeagleBone By Example
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BeagleBone By Example

BeagleBone By Example

By : Prabakar
5 (1)
Buy this Book
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BeagleBone By Example

BeagleBone By Example

5 (1)
By: Prabakar
Buy this Book

Overview of this book

BeagleBone is a low cost, community-supported development platform to develop a variety of electronic projects. This book will introduce you to BeagleBone and get you building fun, cool, and innovative projects with it. Start with the specifications of BeagleBone Black and its operating systems, then get to grips with the GPIOs available in BeagleBone Black. Work through four types of exciting projects: building real-time physical computing systems, home automation, image processing for a security system, and building your own tele-controlled robot and learn the fundamentals of a variety of projects in a single book. By the end of this book, you will be able to write code for BeagleBone in order to operate hardware and impart decision-making capabilities with the help of efficient coding in Python.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Getting Started with BeagleBone
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1. Getting Started with BeagleBone
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Prerequisites
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BeagleBone Black – a single board computer
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Getting to know your board – BeagleBone Black
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Hardware specification of BeagleBone Black
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Setting up your BeagleBone board
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Installing operating systems
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Booting your BeagleBone board from a SD card
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Logging into the board via SSH over Ethernet
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Working on Linux Shell
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Writing your own Python program on BeagleBone board
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Summary
2
2. Circuit Fundamentals and GPIO
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2. Circuit Fundamentals and GPIO
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Prerequisites
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Usage of breadboards
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Switches and LEDs
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GPIOs
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Adding libraries to Python
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Using Python to access GPIOs
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Project – blinking an LED using Python script
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Summary
3
3. Introduction to Physical Computing Systems
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3. Introduction to Physical Computing Systems
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Prerequisites
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Introducing physical computing systems
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Basic elements of physical computing systems
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Project – toggle LED using a push button
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Summary
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4. Real-time Physical Computing Systems Using BeagleBone
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4. Real-time Physical Computing Systems Using BeagleBone
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Prerequisites
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Temperature sensor
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Temperature sensing using a LM35 sensor
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Summary
5
5. Connecting Physical Computing Systems to the Internet
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5. Connecting Physical Computing Systems to the Internet
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Prerequisites
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Giving Internet access to your BeagleBone board
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Adding Wi-Fi to the BeagleBone board
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Intermediate level project: An e-mail alert fire alarm
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Advanced level project: Uploading sensor data to a web cloud
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Summary
6
6. Home Automation Using BeagleBone
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6. Home Automation Using BeagleBone
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Prerequisites
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The structure of home automation systems
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Introduction to web servers
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Python-Flask on BeagleBone Black
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Transistors, relays, power switches
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Advanced project: An Internet controlled power switch – controlling an AC bulb from the Internet
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Summary
7
7. Working with Images Using Computer Vision
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7. Working with Images Using Computer Vision
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Prerequisites
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Adding a USB camera to a BeagleBone board
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OpenCV – introduction and setting up on the BeagleBone board
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Project: Image capture from a camera using Python and OpenCV
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Summary
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8. Home Security Systems Using BeagleBone Black
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8. Home Security Systems Using BeagleBone Black
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Prerequisites
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PIR sensors
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Motion detection using PIR sensors
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Sending e-mail with an attachment from BeagleBone Black
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Advanced project – Motion-based home security alert system
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Summary
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9. Exploring Robotics
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9. Exploring Robotics
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Introduction to robotics
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Elements, structure and operation of robotic systems
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Application areas
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Differential-drive robots
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Summary
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10. Building Your Own Robot
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10. Building Your Own Robot
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Prerequisites
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DC motors
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L293D motor driver IC
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Live video streaming on the BeagleBone board
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Advanced project – a telecontrolled robot with live video streaming
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Summary
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Index
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Index

Adding a USB camera to a BeagleBone board

Adding a USB camera to a BeagleBone board is pretty straightforward. All you need to do is get a USB camera that is compatible with Linux, so one which has drivers for Linux. These days almost all USB web cameras come with this support. If you have a very old USB web camera that you want to interface with a BeagleBone board, you might have to add some additional steps to install the device drivers to see your video camera element on the Linux devices list on the BeagleBone board. For this topic explanation, I used a Logitech C270 HD webcam, as shown in the following figure:

You can use the USB port available on the BeagleBone board to connect the USB camera as shown in the following picture:

Boot the BeagleBone board using Debian on the MicroSD Card that we flashed earlier, and login into the BeagleBone board via SSH. Now type the command Lsusb as shown in the following screenshot:

If you are able to see the webcam listed on the device list, it means...

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