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Internet of Things Programming with JavaScript

Internet of Things Programming with JavaScript

By : Ruben Oliva Ramos
Buy this Book
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Internet of Things Programming with JavaScript

Internet of Things Programming with JavaScript

By: Ruben Oliva Ramos
Buy this Book

Overview of this book

The Internet of Things is taking the tech world by storm, and JavaScript is at its helm. This book will get you to grips with this exciting new technology. Where do Node.js, HTML5 and Windows 10 IoT Core come in with JavaScript and IoT? Why Raspberry Pi Zero rather than Arduino? How do you configure and build an IoT network from scratch? All your IoT JavaScript questions are answered in this book.
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. Getting Started with Raspberry Pi Zero
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1. Getting Started with Raspberry Pi Zero
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Setting up Raspberry Pi Zero
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Connecting to the home network and accessing remotely
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How to install the wireless tools
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Testing the communication
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Updating the package repository
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Remote Desktop
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Configuring a web server
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Testing the PHP installation
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Summary
2
2. Connecting Things to the Raspberry Pi Zero
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2. Connecting Things to the Raspberry Pi Zero
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Connectting digital input - sensor DS18B20
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Configuring the one-wire protocol
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Connecting analog inputs using an MCP3008 ADC Converter
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Raspberry Pi GPIO header
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Connecting an RTC
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DS3231 module setup
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Testing the RTC
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I2C device setup
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Putting the real-time clock to final test
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Summary
3
3. Connecting Sensors - Measure the Real Things
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3. Connecting Sensors - Measure the Real Things
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Measuring flow sensor to calculate the volume of water
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Reading and counting pulses with Arduino
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Calculating water flow rate based on the pulses counted
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Calculating flow and volume of water:
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Measuring the concentration of gas
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Measuring the level of alcohol with a sensor
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Detecting fire with a sensor
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Measuring the humidity for plants
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Measuring the level of water in a recipient
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Measuring temperature, humidity, and light and displaying data on an LCD
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Detecting motion with a PIR sensor
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Detecting if the door is open with a reed switch
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Detecting who can get in the house with a fingerprint sensor
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Summary
4
4. Control-Connected Devices
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4. Control-Connected Devices
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Making a simple web server with Node.js
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Controlling a relay from a Raspberry Pi Zero using Restful API and Node.js
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Controlling the relay using aREST commands from a web browser
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Configuring Node.js on a computer as a web server
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Monitoring temperature, humidity, and light using Node.js with Arduino Wi-Fi
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Monitoring temperature, humidity, and light using Node.js with Arduino Ethernet
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Summary
5
5. Adding a Webcam to Monitor Your Security System
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5. Adding a Webcam to Monitor Your Security System
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Interaction between Arduino and Raspberry Pi
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Arduino interface in Raspian
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Controlling an output connected to Arduino from Raspberry Pi Zero
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Controlling the Arduino board from Python
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Connecting a TTL serial camera to Arduino and saving pictures to a micro SD
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Detecting motion with the serial TTL camera
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Controlling a snapshot from Raspberry Pi
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Controlling your camera from a web page
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Monitoring your USB camera for security in a network
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Summary
6
6. Building a Web Monitor and Controlling Devices from a Dashboard
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6. Building a Web Monitor and Controlling Devices from a Dashboard
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Configuring MySQL database server
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Installing PhpMyAdmin for administrating databases
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Datalogger with MySQL
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Data queries from the database
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Controlling and dimming a LED
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Controlling the speed of a DC motor
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Controlling Lights with electrical circuits
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Other appliances
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Remote access from anywhere to your Raspberry Pi Zero
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Controlling lights and measuring current consumption
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Controlling and monitoring Arduino, Wi-Fi, and Ethernet shields on connected devices and sensors
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Summary
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7. Building a Spy Police with the Internet of Things Dashboard
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7. Building a Spy Police with the Internet of Things Dashboard
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Spy microphone that detects noise
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Regulating the current of an AC lamp dimmer
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Controlling access with an RFID card
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Detecting smoke
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Building an alarm system using the Raspberry Pi Zero
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Monitoring the climate from a remote dashboard
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Summary
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8. Monitoring and Controlling Your Devices from a Smart Phone
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8. Monitoring and Controlling Your Devices from a Smart Phone
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Controlling a relay from a smart phone using APP Inventor
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Creating our first application
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Reading JSON response in Android Studio using ethernet shield
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Android application
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Controlling a DC motor using  an Android Application
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Controlling outputs from android using your Raspberry Pi Zero
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Controlling outputs with Raspberry Pi via Bluetooth
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Summary
9
9. Putting It All Together
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9. Putting It All Together
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Integrating the system - development projects
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Solar power monitor circuit
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Automatic irrigation system with a soil sensor
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Arduino water-level controller
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Bluetooth based home automation
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Controlling access with a matrix keyboard
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Controlling the door lock with a keypad
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Integrating the system control with relays and devices
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How to set up the power supplies
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Summary

Arduino interface in Raspian

Here we have the interface of the Arduino IDE, similar to the ones we have in a computer. From the Arduino IDE running in the Raspberry Pi, we can interact between both boards:

Preparing the interface

We need to verify that we selected the proper board; in this case, we're using an Arduino UNO. Select the board in the following window:

Selecting the serial port

After we have selected the board that we will use, we need to verify and select the port that will communicate with our Arduino connected to the USB port of the Raspberry Pi; we need to select the name port: /dev/ttyACM0:

Downloading a sketch from the graphical interface

The main thing that we need is to communicate with Arduino from our Raspberry Pi Zero and download the sketch to the Arduino board without using a computer, so that we can use our Raspberry Pi for other purposes.

The following screenshot shows you the interface with the sketch:

We should download the sketch in the interface. The following image...

Visually different images
CONTINUE READING
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Tech Concepts
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Programming languages
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Internet of Things Programming with JavaScript
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