Raspberry Pi: Measure, Record, Explore.
Raspberry Pi: Measure, Record, Explore.
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Raspberry Pi: Measure, Record, Explore.

This book is 100% complete

Completed on 2017-12-24

About the Book

Getting the real world to meet the digital one...

'Raspberry Pi: Measure, Record, Explore' is a book written to help those who want to get started interfacing computers with the physical world and turning recorded information into visual data.

Is this book an official Raspberry Pi product?

Nope. The Raspberry Pi Foundation is not involved in the production of the book. However, any and all readers should regard raspberrypi.org as the starting point for information on using and enjoying the fantastic products they are producing. They really are awesome and deserving of the success that is the Raspberry Pi.

Is this book for you?

It's not written for experts. It's put together as a guide to get you started if you're unsure about how to make the first move. It reads more like a story as it leads the reader through the basics of using a Raspberry Pi, connecting sensors, recording information into a MySQL database and presenting that data on a web page using d3.js.

Why was Raspberry Pi: Measure, Record, Explore written?

Because in the process of learning things, it's a great way to remember them if you write them down :-).

As a result, learning how to do cool stuff with a Raspberry Pi means that I'm accumulating ways to help me out when the going gets tricky. Making a book out of the information is a no-brainer since that way more people benifit from the process.

So here we are! A collection of tips and tricks for measuring, recording and exploring information written by a noob for people who might consider that they're in the same situation :-).

What's in the book?

I've captured the appropriate code and added in illustrations of what's going on so that you will get more traction at the start of your learning process.

Hang on, there's code?

The code examples that are used in the book are available to download (still free!).

The awesome that is Open Source.

Please consider this an opportunity for you to contribute back to the Open Source community that makes products like the Raspberry Pi possible. If you find something that can be improved about the book or think there's something that can be added, just let me know!

The book has plenty of information in it, but I've tried to pitch it in sections so that if you find something interesting, you can read parts in isolation. I have a little bit more additional material that I want to add, so I'm hoping that publishing using Leanpub will allow readers to get easy notification of when updates and improvements are made.

Download the whole book just to try it out!

I'm making the book available for free because I think it's a great way to give something back to the community as a whole, but if you find some value in the book, please consider contributing 99 cents when you download it so that Leanpub gets something for hosting the book and providing such an awesome service (50 cents is their flat cut of any book sales and 99 cents is the minimum (apart from $0) that they will allow for a sale).

(Don't be put off by the button at the top saying 'Buy the ebook now'. Once you click on it, you can select any price you want including $0!)

Enjoy.

So I hope you get something out of the book, please excuse the sometimes light-hearted conversational manner in which I approach the topic and enjoy measuring, recording and exploring the world in digital!

About the Author

Malcolm Maclean
Malcolm Maclean

I have a passion for knowledge and I realise that part of the responsibility of gathering knowledge is being able to advance the state of the human condition in some way.

My aims using the Raspberry Pi and in writing this book were to play with software and hardware, achieve a personal goal and try something new for fun. It also helps that I think recording and the visual representation of data rock in serious ways.

I don't have a formal Linux or coding background so the way I explain things is focussed on trying to impart that understanding in a simple but functional way.

I'm totally in awe of the Open Source community that has made this type of work possible, which is why you can download Raspberry Pi: Measure, Recore, Explore for free.

Feel free to follow me on Twitter (@d3noob), I find it a great service to get alerted to what's going on.

Bundles that include this book

D3 Tips and Tricks v3.x
Raspberry Pi: Measure, Record, Explore.
2 Books
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D3 Tips and Tricks v3.x
Leaflet Tips and Tricks
Raspberry Pi: Measure, Record, Explore.
3 Books
$10.00
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Table of Contents

  • Introduction
    • Welcome!
    • What are we trying to do?
      • Measure
      • Record
      • Explore
    • Who is this book for?
    • What tools / equipment will we use?
      • Raspberry Pi
        • MySQL
        • Apache Web Server
        • PHP
        • Python
        • JavaScript
        • d3.js
      • Sensors
    • Where can I get more information?
      • raspberrypi.org
      • Google+
      • reddit
      • Google Groups
      • Raspberry Pi Stack Exchange
      • adafruit
  • Setting up the Raspberry Pi
    • Hardware
      • The Raspberry Pi
        • Case
      • SD Card
      • Keyboard / Mouse
      • Video
      • Network
        • Power supply
    • Operating System
      • Welcome to Raspbian
      • Sourcing and Setting Up
        • Downloading
        • Writing Raspbian to the SD Card
      • Installing Raspbian
        • Software Updates
    • GUI Desktop
    • Static IP Address
      • The Netmask
      • Distinguish Dynamic from Static
      • Setting a Static IP Address on the Raspberry Pi.
        • Default Gateway
        • Edit the interfaces file
    • Remote access
      • Remote access via TightVNC
        • Setting up the Client (Windows)
        • Setting up the Server (Raspberry Pi)
        • Copying and Pasting between Windows and the Raspberry Pi
        • Starting TightVNC at boot on the Pi.
      • Remote access via SSH
        • Setting up the Server (Raspberry Pi)
        • Installing SSH on the Raspberry Pi.
        • Setting up the Client (Windows)
    • Setting up a WiFi Network Connection
    • Web Server and PHP
      • Tweak permissions for easier web file editing
    • Database
      • MySQL
      • phpMyAdmin
      • Allow access to the database remotely
      • Create users for the database
      • Create a database
    • Backup the Configured SD Card
    • Exploring data with a simple line graph
      • The full code
      • PHP
        • The code
      • HTML
        • CSS
      • JavaScript and d3.js
        • Setting up the margins and the graph area.
        • Getting the Data
        • Formatting the Date / Time.
        • Setting Scales Domains and Ranges
        • Setting up the Axes
        • Adding data to the line function
        • Adding the SVG area.
        • Actually Drawing Something!
    • Wrap Up
  • Single Temperature Measurement
    • Measure
      • Hardware required
      • Connect
      • Test
    • Record
      • Database preparation
      • Record the temperature values
        • Code Explanation
    • Explore
      • The Code
      • Different MySQL Selection Options
  • Multiple Temperature Measurements
    • Measure
      • Hardware required
      • Connect
      • Test
    • Record
      • Database preparation
      • Record the temperature values
        • Code Explanation
      • Recording data on a regular basis with cron
    • Explore
      • The Code
        • PHP
        • JavaScript
  • System Information Measurement
    • Measure
      • Hardware required
      • Measured Parameters
        • System Load
        • Memory Used
        • Disk Used
        • Raspberry Pi Temperature
    • Record
      • Database preparation
      • Record the system information values
        • Code Explanation
        • load
        • ram
        • disk
        • temperature
        • Main program
      • Recording data on a regular basis with cron
    • Explore
      • The Bullet Graph
      • The Code
        • HTML / JavaScript
        • PHP
  • Basic GPIO Input Sensors
    • Measure
      • Hardware required
        • The KY003 Hall Effect Sensor
      • Connect
      • Test
    • Record
      • Database preparation
      • Record the events
        • Code Explanation
      • Start the code automatically at boot
    • Explore
      • The Code
        • PHP
        • CSS (Styles)
        • JavaScript
  • Pressure and Temperature measurement with the BMP180
    • Measure
      • Hardware required
        • The BMP180 Sensor
      • Connect
      • Test
    • Record
      • Database preparation
      • Record the readings
        • Code Explanation
      • Recording data on a regular basis with cron
    • Explore
      • The Code
        • PHP
        • CSS (Styles)
        • JavaScript
    • Bibliography
  • Connecting Analog Sensors to the Raspberry Pi
    • Analog and Digital
      • Analog
      • Digital
      • Analog to Digital Conversion (ADC)
      • The Sensor
    • Data Visualization
    • Measure
      • Hardware required
        • The ADS1015 Analog to Digital Converter
        • The Light Dependant Resistor (LDR or Photoresistor) Sensor
      • Connect
      • Test
    • Record
      • Database preparation
      • Record the readings
        • Code Explanation
      • Recording data on a regular basis with cron
    • Explore
      • The Code
        • PHP
        • CSS (Styles)
        • JavaScript
    • Bibliography
  • Web Scraping
    • OK, so what is web scraping?
    • Measure
      • Hardware required
      • Software required
      • Let the scraping begin
    • Record
      • Database preparation
      • Record the reader numbers
        • Code Explanation
      • Recording data on a regular basis with cron
    • Explore
      • The Code
      • Description
        • Nesting the data
        • Wrangle the data
        • Cheating with the domain
        • data vs datum
        • Setting up the clipPaths
        • Clipping and adding the areas
        • Draw the lines and the axes
      • Adding a bit more to our difference chart.
        • Add a Y axis label
        • Add a title
        • Adding the legend
        • Link the areas
        • The final result
  • Raspberry Pi Tips and Tricks
    • Changing the default keyboard layout
    • Changing the default local time
    • Access the Pi with a ‘name’ or an IP address
    • Transfer files easily to / from the Pi
      • Bonus: Edit Files on the Pi from your Desktop Editor
    • Turn the activity light on or off
      • Cut to the chase and just do it
      • The explanation of how it works
  • Hardware
    • Raspberry Pi A+
      • USB Port
      • Video Out
      • USB Power Input Jack
      • MicroSD Flash Memory Card Slot
      • Stereo and Composite Video Output
      • 40 Pin Header
    • Raspberry Pi B+
      • USB Ports
      • Video Out
      • Ethernet Network Connection
      • USB Power Input Jack
      • MicroSD Flash Memory Card Slot
      • Stereo and Composite Video Output
      • 40 Pin Header
    • Raspberry Pi B
      • USB Ports
      • HDMI Video Out
      • Composite Video Out
      • Ethernet Network Connection
      • USB Power Input Jack
      • SD Flash Memory Card Slot
      • Audio Output
      • 26 Pin Header
    • Cases
      • Multicomp MC-RP002-CLR
        • Side views.
        • Fitting the Raspberry Pi
      • DIY Open Multi-stack Pi
    • Sensors
      • DS18B20 Programmable Resolution 1-Wire Digital Thermometer
    • Accessories
      • VGA to HDMI Adapter
      • In-line switch for USB power supply
      • Multiple Outlet USB Power Supply
  • Linux Command Glossary
    • apt-get
      • apt-get update
      • apt-get upgrade
      • apt-get install
    • cat
    • cd
    • chmod
    • chown
    • crontab
    • ifconfig
    • ls
    • modprobe
    • sudo
    • usermod
  • Appendices
    • Raspberry Pi Quick Set-up
      • Download Raspbian Image
      • Writing Raspbian to the SD Card
      • Installing Raspbian
      • Software Updates
      • Static IP Address
      • Remote access via TightVNC
        • On Windows
        • On the Raspberry Pi.
      • Starting TightVNC at boot.
        • Copying and Pasting between Windows and the Raspberry Pi via TightVNC
      • Remote access via SSH
        • Setting up the Server (Raspberry Pi)
        • Setting up the Client (Windows)
      • Setting up a WiFi Network Connection
      • Web Server and PHP
        • Adjust permissions for web files
      • Database
      • phpMyAdmin
      • Allow remote database access
      • Add users to the database
      • Create a database
    • Understanding JavaScript Object Notation (JSON)

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