Packt+ | Advance your knowledge in tech

0

All Products

Best Sellers

New Releases

Books

Videos

Audiobooks

Free Learning

Hands-On Internet of Things with Blynk

You're reading from Hands-On Internet of Things with Blynk Build on the power of Blynk to configure smart devices and build exciting IoT projects

Product type Paperback

Published in May 2018

Publisher Packt

ISBN-13 9781788995061

Length 271 pages

Edition 1st Edition

Languages

C++

Tools

Blynk

Concepts

IoT Development

Author (1):

Seneviratne

View More author details

Table of Contents (14) Chapters

Title Page

Packt Upsell

Contributors

Preface

1. Setting Up a Development Environment FREE CHAPTER

2. Building Your First Blynk Application

3. Using Controller Widgets

4. Using Display Widgets

5. Using Notification Widgets

6. Connecting with Sensors on Your Mobile Device

7. Setting Up a Personal Blynk Server

8. Controlling a Robot with Blynk

1. Other Books You May Enjoy

Leave a review - let other readers know what you think

Index

Controlling an LED

You are now ready to build your first Blynk application that can be used to control an LED attached to the Raspberry Pi from your smartphone or tablet. The application consists of the following components:

Blynk app running on your smartphone or tablet
C++ project running on Raspberry Pi
Blynk cloud

Things you need

You will need following things to build the circuit:

Raspberry Pi 3 board
A breadboard
An LED - Basic Red 5 mm (https://www.sparkfun.com/products/9590)
A 330 Ohm 1/6 Watt PTH resistor (https://www.sparkfun.com/products/11507) color coded orange, brown, gold
Two male-female jumper wires

Building the circuit

The following diagram shows how you can connect an LED to the BCM_GPIO pin 18 (physical pin 12) of the Raspberry Pi 3:

LED connected to the BCM_GPIO 18 of the Raspberry Pi 3

Connect the positive leg (the longer leg) of the LED to the physical pin 12 (BCM_GPIO PIN 18) of the Raspberry Pi.

Connect the negative leg (the shorter leg or the leg adjacent to the flat edge on the...

The rest of the chapter is locked

Register for a free Packt account to unlock a world of extra content!

A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.

Unlock this book and the full library FREE for 7 days

Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of

Start free trial

Renews at $15.99/month. Cancel anytime

Authors (1)

Seneviratne

Seneviratne

Pradeeka Seneviratne is a software engineer with over 10 years' experience in computer programming and systems design. He is an expert in the development of Arduino- and Raspberry Pi-based embedded systems. Pradeeka is currently a full-time embedded software engineer who works with embedded systems and highly scalable technologies. Previously, he worked as a software engineer for several IT infrastructure and technology servicing companies. He collaborated with the Outernet project as a volunteer hardware and software tester for Lighthouse- and Raspberry Pi-based DIY Outernet receivers based on Ku band satellite frequencies. He is also the author of five books: Internet of Things with Arduino Blueprints [Packt Publishing] IoT: Building Arduino-Based Projects [Packt Publishing] Building Arduino PLCs [Apress] Raspberry Pi 3 Projects for Java Programmers [Packt Publishing] Beginning BBC micro:bit [Apress]

See other products by Seneviratne

Other recommended products

Related to this chapter

ESP8266 Robotics Projects

ESP8266 Robotics Projects

The ESP8266 WiFi module is a self-contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. This book is all about robotics projects based on the original ESP8266 microcontroller board and some variants of ESP8266 boards. You will learn how to use a different type of chassis kits, motors, motor drivers, power supplies and distribution boards, sensors, and actuators to build the robotics projects that can be controlled via WiFi. In addition to it, you will understand how to use line sensors, ArduiCam, Wii Remote, Wheel encoders, and Gripper kit to build more specialized robots.

Raspberry Pi 3 Projects for Java Programmers

Raspberry Pi 3 Projects for Java Programmers

This book will try to create starting points for Java developers who would like to extend their knowledge on how to interact with hardware on the Raspberry Pi by providing small real world usable projects. After reading this book the reader will be able to build their own real world usable projects not limited to Home Automation, IoT and/or Robotics utilizing logic, user- and web interfaces.

May 2017 9h 32m

Hands-On Robotics Programming with C++

Hands-On Robotics Programming with C++

C/C++ is one the legacy programming language for Robotics Programming. This book will help you understand and build complexly structured robots and implement various C/C++ programming libraries in it.

Mar 2019 10h 24m

Building Smart Drones with ESP8266 and Arduino

Building Smart Drones with ESP8266 and Arduino

With the rise of drone utility, the rise of DIY projects has significantly increased. Programmers are rapidly moving from traditional application programming to developing exciting multi-utility projects. This book's sole motto is to teach you to build industry-level drones with Arduino and ESP8266.

Wearable-Tech Projects with the Raspberry Pi Zero

Wearable-Tech Projects with the Raspberry Pi Zero

Are you interested in wearable-tech and gadgets? Do you want to know more about how you can use the Raspberry Pi Zero computer? This book has a series of projects which will show you some of the possibilities with wearable-tech and the Pi Zero, guiding you through each one from start to finish. The Raspberry Pi Zero is a revolutionary product, designed and manufactured in the United Kingdom by the Raspberry Pi Foundation. This tiny computer provides powerful features, in spite of being such a small size; it measures a mere 65 x 35 mm! One of the advantages of its tiny size is that it is ideal to be used in wearable-tech projects.

Internet of Things Programming Projects

Internet of Things Programming Projects

Taking a project-based approach this book will help you leverage sensors, actuators, Python programming and Raspberry Pi 3 to build connected things. Each chapter is an independent project where you will learn from connecting devices to building complex IoT projects. You will be well versed in every possible way to make your projects stand out.

Oct 2018 14h 32m

Raspberry Pi 3 Cookbook for Python Programmers

Raspberry Pi 3 Cookbook for Python Programmers

Raspberry Pi 3 is a tiny affordable chip used to learn and program through interactive projects. It has gained a lot of traction as the first choice in single-board computers due to its versatility. It extends a wide range of support to Python programming. This recipe-based guide will allow you to showcase the capabilities of Raspberry Pi 3.

Apr 2018 18h 24m

Raspberry Pi Zero W Wireless Projects

Raspberry Pi Zero W Wireless Projects

Wireless communications have spread over the whole world, as the new era of Internet of Things come closer and closer. Low-energy hardware such as the Raspberry Pi Zero Wireless is perfect for many projects. This book introduces you to Raspberry Pi Zero W, the new family member with a wireless extension. Throughout the book, readers will learn how to build inexpensive, fast, and awesome projects to change their everyday routines.

Internet of Things with Raspberry Pi 3

Internet of Things with Raspberry Pi 3

Internet of Things (IoT) is currently a growing trend in the technology space, and Raspberry Pi is the perfect board to get started with building IoT projects. Applications of IoT are the basis of smart homes and when scaled up, we can drive smart cities and achieve manufacturing automation. This book covers many powerful features of Raspberry Pi which will help in building a weather station, facial recognition systems, and security surveillance systems. Additionally, you'll also learn to use Raspberry Pi, sensors and cloud, in a practical way.

Apr 2018 8h 16m

Raspberry Pi Computer Vision Programming

Raspberry Pi Computer Vision Programming

You will learn the basics of hardware and software required for image processing and computer vision with Raspberry Pi and Python 3. You will have a look at all the major image processing, manipulation, and computer vision techniques and algorithms in detail using engaging examples. You will build a lot of real-life computer vision applications.

Jun 2020 10h 12m

DIY Microcontroller Projects for Hobbyists

DIY Microcontroller Projects for Hobbyists

This book is a project-based introduction if you're new to electronics, microcontroller boards, and C and C++ programming that will have you quickly building practical and real-world projects. Throughout the book, you'll discover how to connect easy-to-use sensors and displays to microcontroller boards and learn how to test them.

Jul 2021 10h 40m

IoT Projects with Bluetooth Low Energy

IoT Projects with Bluetooth Low Energy

This book is a complete technical reference guide to designing applications with Bluetooth Low Energy. Bluetooth Low Energy is a niche topic and is relatively new as compared to similar communication technology stacks. All of the applications/projects described in this book are there to serve as a guide to designing a Bluetooth Low Energy-based solution for an actual real-world problem/scenario/setting.

Aug 2017 9h 16m

Personalised recommendations for you

Based on your interests and search pattern

Mastering Embedded Linux Development

Mastering Embedded Linux Development

This comprehensive guide is aimed at those who want to take the leap from low-power microcontrollers to high-speed system-on-chips that can efficiently run Linux. Look no further, this book has everything you need to start your journey.

May 2025 23h 40m

The Embedded Linux Security Handbook

The Embedded Linux Security Handbook

This book will guide you through every step of the development process, from design to building, testing, validation, and ultimately supporting the appliance's lifecycle to strengthen the security of your embedded Linux systems.

Apr 2025 9h 16m