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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

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Product type Paperback
Published in Feb 2017
Publisher Packt
ISBN-13 9781785888564
Length 298 pages
Edition 1st Edition
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Author (1):
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Ruben Oliva Ramos Ruben Oliva Ramos
Author Profile Icon Ruben Oliva Ramos
Ruben Oliva Ramos
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Table of Contents (10) Chapters Close

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

Building an alarm system using the Raspberry Pi Zero


In this section, we will build a simple alarm system with a PIR sensor connected to the Raspberry Pi Zero. This is an important project as it can be added to the home, including other sensors, in order to monitor it.

Motion sensor with Raspberry Pi Zero

For this project we need the Raspberry Pi Zero, a motion sensor PIR, and some cables. The hardware configuration for this project will actually be very simple. First, connect the VCC pin of the motion sensor to a 3.3V pin on the Raspberry Pi. Then, connect the GND pin of the sensor to one GND pin on the Pi. Finally, connect the OUT pin of the motion sensor to the GPIO17 pin on the Raspberry Pi. You can refer to the previous chapters to find out about pin mapping on the Raspberry Pi Zero board.

The following image shows the final circuit with the connections:

Software code

You can now either copy the code inside the folder called Project1, or just get the complete code from the folder for this...

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