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    Hands-On Internet of Things with Blynk: Build on the power of Blynk to configure smart devices and build exciting IoT projects
    Hands-On Internet of Things with Blynk: Build on the power of Blynk to configure smart devices and build exciting IoT projects
    Hands-On Internet of Things with Blynk: Build on the power of Blynk to configure smart devices and build exciting IoT projects
    Ebook433 pages1 hour

    Hands-On Internet of Things with Blynk: Build on the power of Blynk to configure smart devices and build exciting IoT projects

    By Pradeeka Seneviratne

    ()

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    About this ebook

    Blynk, known as the most user-friendly IoT platform, provides a way to build mobile applications in minutes. With the Blynk drag-n-drop mobile app builder, anyone can build amazing IoT applications with minimal resources and effort, on hardware ranging from prototyping platforms such as Arduino and Raspberry Pi 3 to industrial-grade ESP8266, Intel, Sierra Wireless, Particle, Texas Instruments, and a few others.

    This book uses Raspberry Pi as the main hardware platform and C/C++ to write sketches to build projects. The first part of this book shows how to set up a development environment with various hardware combinations and required software. Then you will build your first IoT application with Blynk using various hardware combinations and connectivity types such as Ethernet and Wi-Fi. Then you'll use and configure various widgets (control, display, notification, interface, time input, and some advanced widgets) with Blynk App Builder to build applications. Towards the end, you will learn how to connect with and use built-in sensors on Android and iOS mobile devices. Finally you will learn how to build a robot that can be controlled with a Blynk app through the Blynk cloud and personal server.

    By the end of this book, you will have hands-on experience building IoT applications using Blynk.

    LanguageEnglish
    PublisherPackt Publishing
    Release dateMay 28, 2018
    ISBN9781788997065
    Hands-On Internet of Things with Blynk: Build on the power of Blynk to configure smart devices and build exciting IoT projects

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      Book preview

      Hands-On Internet of Things with Blynk - Pradeeka Seneviratne

      Hands-On Internet of Things with Blynk

      Hands-On Internet of Things with Blynk

      Build on the power of Blynk to configure smart devices and build exciting IoT projects

      Pradeeka Seneviratne

      BIRMINGHAM - MUMBAI

      Hands-On Internet of Things with Blynk

      Copyright © 2018 Packt Publishing

      All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

      Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book.

      Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

      Commissioning Editor: Gebin George

      Acquisition Editor: Prachi Bisht

      Content Development Editor: Trusha Shriyan

      Technical Editor: Varsha Shivhare

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      Graphics: Jisha Chirayil

      Production Coordinator: Shantanu Zagade

      First published: May 2018

      Production reference: 1220518

      Published by Packt Publishing Ltd.

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      ISBN 978-1-78899-506-1

      www.packtpub.com

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      Contributors

      About the author

      Pradeeka Seneviratne is a software engineer with over 10 years of experience in computer programming and systems design. He is an expert in the development of Arduino- and Raspberry Pi-based embedded systems, and is currently a full-time embedded software engineer working with embedded systems and highly scalable technologies. Previously, he worked as a software engineer for several IT infrastructure and technology servicing companies. He has also authored Beginning BBC micro:bit, published by Apress.

      About the reviewer

      Munawwar Hussain Shelia is a digital artist and software engineer based in Mumbai, India. An engineering graduate (BE) in computer science, his curiosity to try his hand at the next latest technology keeps him thinking ahead on the boundaries of coding. He started his career in mobile application development with Java and Android, before moving on to full-stack JavaScript (MEAN stack) Node.js, where he put his heart and soul into building more real-time web applications. Currently, he is in the role of data science, and extracts actionable intelligence and does predictive analytics from large datasets.

      Packt is searching for authors like you

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      Table of Contents

      Title Page

      Copyright and Credits

      Hands-On Internet of Things with Blynk

      Packt Upsell

      Why subscribe?

      PacktPub.com

      Contributors

      About the author

      About the reviewer

      Packt is searching for authors like you

      Preface

      Who this book is for

      What this book covers

      To get the most out of this book

      Download the example code files

      Download the color images

      Conventions used

      Get in touch

      Reviews

      Setting Up a Development Environment

      What is Blynk?

      Hardware platforms

      Connection types

      Blynk architecture

      Blynk ecosystem

      Online resources

      The Blynk app builder

      Installing the Blynk app builder

      Creating a Blynk account

      Creating a new project

      Getting parts

      Raspberry Pi

      Setting up Raspberry Pi

      Setting up software on Raspberry Pi

      Installing Raspbian

      Writing Raspbian Stretch Lite image on SD card

      Creating a configuration file for SSH

      Connecting with Raspberry Pi with SSH

      Configuring a wireless connection on Raspberry Pi

      Installing prerequisite software on Raspbian

      Updating and upgrading Raspbian

      Installing git

      Installing WiringPi

      Deploying Blynk libraries

      Connecting Raspberry Pi with Blynk Cloud

      Summary

      Building Your First Blynk Application

      Controlling an LED

      Things you need

      Building the circuit

      Building the Blynk app

      Adding a Button widget

      Running the project

      Playing the app

      Using virtual pins

      Configuring Button widget with virtual pin

      Modifying the main.cpp file

      Running the project

      Summary

      Using Controller Widgets

      Creating a project

      Slider

      Adding a Slider widget

      Using digital pins

      Using virtual pins

      Step

      Adding a Step widget

      Using digital pins

      Using virtual pins

      zeRGBa

      Using digital pins

      Using virtual pins

      Controlling an RGB LED

      Building the circuit

      Running the project

      Joystick

      Using digital pins

      Using virtual pins

      Summary

      Using Display Widgets

      Value Display

      Using digital pins

      Using virtual pins

      Labeled Value

      Configuring a Labeled Value widget

      LED

      Using virtual pins

      Summary

      Using Notification Widgets

      Twitter

      Adding a Twitter widget

      Configuring

      Sending tweets

      Twitter button

      Notification widget

      Configuring the Notification widget

      Writing a notification

      Email

      Configuring the Email widget

      Writing code to send email

      Summary

      Connecting with Sensors on Your Mobile Device

      Accelerometer

      Accelerometer widget

      Configuring the Accelerometer widget

      Reading accelerometer data

      Calculating overall acceleration

      Light sensor

      Adding the Light Sensor widget

      Configuring the Light Sensor widget

      Reading light sensor

      Proximity sensor

      Configuring the Proximity Sensor widget

      Writing code

      Summary

      Setting Up a Personal Blynk Server

      Setting up a Blynk server on Raspberry Pi

      Enabling autostart with rc.local

      Enabling autostart with crontab

      Verifying that the Blynk server is running

      Connecting the Blynk app builder with the server

      Creating a new project to get the auth token

      Using the administration interface

      Writing a simple code to build the connection

      Summary

      Controlling a Robot with Blynk

      Choosing a chassis kit

      Adafruit

      SparkFun

      Pololu

      Creating a Blynk app

      Motor driver

      Summary

      Other Books You May Enjoy

      Leave a review - let other readers know what you think

      Preface

      Blynk is referred to as the most user-friendly IoT platform, providing a way to build mobile applications in minutes. With Blynk's drag and drop mobile app builder, anyone can build amazing IoT applications with minimal resources and effort. Blynk supports over 400 hardware platforms and major connectivity types. The hardware could be prototyping platforms, such as Arduino and Raspberry Pi, to industrial-grade ESP8266, Intel, Sierra Wireless, Particle, and Texas Instruments offerings.

      This book uses Raspberry Pi as the main hardware platform and C++

      Enjoying the preview?
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