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  • Book Overview & Buying Raspberry Pi Sensors
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Raspberry Pi Sensors

Raspberry Pi Sensors

By : Rushi Gajjar
4.4 (9)
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Raspberry Pi Sensors

Raspberry Pi Sensors

4.4 (9)
By: Rushi Gajjar
Buy this Book

Overview of this book

This book is perfect for hardware enthusiasts who want to develop amazing projects using Raspberry Pi. Some knowledge and experience working with Linux, C, and Python is a plus, but once you're set up to go, you'll be ready to push the creative capabilities of your Raspberry Pi even further.
Table of Contents (10 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
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1
1. Meeting Your Buddy – the Raspberry Pi
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1. Meeting Your Buddy – the Raspberry Pi
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A glance at the Raspberry Pi board
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Setting up for the first time
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Connecting the Raspberry Pi to the Internet
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A crash course on Linux
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Installing useful libraries
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python-gpio
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Be ready with Python and C
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Practice makes you perfect
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Summary
2
2. Meeting the World of Electronics
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2. Meeting the World of Electronics
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Basic terminologies of electronics
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Communication protocols
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Useful tips and precautions
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Understanding the GPIO port
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It's time to glow LEDs!
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Summary
3
3. Measuring Distance Using Ultrasonic Sensors
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3. Measuring Distance Using Ultrasonic Sensors
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The mysterious ultrasonic sensor
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Building the project!
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Fixing common problems
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A wearable device for the visually impaired
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Summary
4
4. Monitoring the Atmosphere Using Sensors
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4. Monitoring the Atmosphere Using Sensors
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Sensor selection process
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InsideDHT – temperature and humidity sensors
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Introducing the photoresistor (photocell)
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Building the project
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Putting all the parts together
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Troubleshooting common problems
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Summary
5
5. Using an ADC to Interface any Analog Sensor with the Raspberry Pi
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5. Using an ADC to Interface any Analog Sensor with the Raspberry Pi
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Analog-to-digital convertors
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MCP3008 for analog-to-digital conversion
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Making your own sensor station
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Generic software preparation
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Using your sensor station – make a temperature logger
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Summary
6
6. Uploading Data Online – Spreadsheets, Mobile, and E-mails
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6. Uploading Data Online – Spreadsheets, Mobile, and E-mails
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Internet of Things
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Hardware setup
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Synchronizing the clock with the Internet
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Uploading data on Google spreadsheets
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Getting notified by e-mails
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Integrating everything
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Common problems faced
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Summary
7
7. Creating an Image Sensor Using a Camera and OpenCV
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7. Creating an Image Sensor Using a Camera and OpenCV
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Image processing
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OpenCV
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Camera interfacing with the RasPi
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Live streaming using a network camera
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Porting OpenCV
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Create a motion detector
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Amazing projects for you
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Summary
8
A. Shopping List
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Basic requirements
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Sensors
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Integrated chips
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Components
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Others
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Index
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Index

Amazing projects for you

With some knowledge on OpenCV, you can go ahead and read the manuals of OpenCV to gain more knowledge on how functions and arguments are passed. Initially, it can be somewhat difficult for you to start OpenCV using image pointers. There is an immense amount of help available at http://www.opencv.org. While taking help from the Internet and the code available from the official website, check for the OpenCV language (platform) first. It has been observed that when C code merges with C++ code, it doesn't work even after banging your head for hours. It is advised to keep The OpenCV Reference Manual (Current Release 2.4.9.0) with you while coding OpenCV.

It would be quite a good challenge for you to develop a project that fulfils the following requirements:

  • Capture live images using the interfaced camera, split the image into segments of the same size (say, four vertical segments), and compare it with the reference image. There will be a clear difference in one of the segments...

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