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Internet of Things Programming with JavaScript

You're reading from Internet of Things Programming with JavaScript Get the best out of Arduino and Raspberry Pi Zero to develop Internet of Things projects using JavaScript

Product type Paperback

Published in Feb 2017

Publisher Packt

ISBN-13 9781785888564

Length 298 pages

Edition 1st Edition

Languages

JavaScript

Tools

Arduino

Concepts

Single Board Computers

Author (1):

Ruben Oliva Ramos

View More author details

Table of Contents (10) Chapters

Preface

1. Getting Started with Raspberry Pi Zero FREE CHAPTER

2. Connecting Things to the Raspberry Pi Zero

3. Connecting Sensors - Measure the Real Things

4. Control-Connected Devices

5. Adding a Webcam to Monitor Your Security System

6. Building a Web Monitor and Controlling Devices from a Dashboard

7. Building a Spy Police with the Internet of Things Dashboard

8. Monitoring and Controlling Your Devices from a Smart Phone

9. Putting It All Together

Controlling outputs with Raspberry Pi via Bluetooth

Things go a different route as soon as you’re trying to communicate with other electronic gadgets that uses Bluetooth modules connected to the serial port of the Raspberry Pi.

These modules are very cheap to buy, the actual module is the green board that sits on the breakout board in my model. The pure HC-05 will only work on 3.3V levels, not with 5V-TTL-levels. So one would need level shifters (again).

In this section, we will communicate the Raspberry Pi Zero to the Bluetooth module, and connect the pins TX and RX of the Raspberry Pi.

First, we need to configure the file of the system to make some changes in order to activate the communication of the Raspberry Pi Zero TX and RX:

Controlling outputs with Raspberry Pi via Bluetooth

Controlling lights from an Android Application

We need to download the Bluetooth Terminal, as shown in the following screenshot:

Controlling lights from an Android Application

The following screenshot shows the results of sending the numbers 1, 2, 3, 4, 5, and 6:

Controlling lights from an Android Application

The following image shows the final part of...

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Authors (1)

Ruben Oliva Ramos

Ruben Oliva Ramos

Ruben Oliva Ramos is a computer systems engineer from Tecnologico de Leon Institute, with a master's degree in computer and electronic systems engineering and a specialization in teleinformatics and networking from the University of Salle Bajio in Leon, Guanajuato, Mexico. He has more than 5 years of experience of developing web applications to control and monitor devices connected with Arduino and Raspberry Pi, using web frameworks and cloud services to build the Internet of Things applications. He is a mechatronics teacher at the University of Salle Bajio and teaches students of the master's degree in design and engineering of mechatronics systems. Ruben also works at Centro de Bachillerato Tecnologico Industrial 225 teaching subjects such as electronics, robotics and control, automation, and microcontrollers. He is a consultant and developer for projects in areas such as monitoring systems and datalogger data using technologies (such as Android, iOS, HTML5, and ASP.NET), databases (such as SQlite, MongoDB, and MySQL), web servers, hardware programming, and control and monitor systems for data acquisition and programming.

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