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Download Building a Home Security System with BeagleBone by Bill Pretty PDF

By Bill Pretty

Construct your personal high-tech alarm process at a fragment of the cost

Overview

Build your personal state of the art defense system
Monitor your approach from at any place you could obtain e-mail
Add regulate of different structures reminiscent of sprinklers and gates
Save millions on tracking and condominium fees
In Detail

One of the simplest stored secrets and techniques of the safety is simply how uncomplicated the tracking really is - BeagleBone has all of the computing energy you want to construct your self a really refined entry keep an eye on, alarm panel, and residential automation and community intrusion-detection approach. safety businesses make a fortune every year via charging exorbitant charges to their shoppers. you'll learn the way effortless it truly is to make an alarm procedure with Beaglebone.

A company-maintained-and-monitored alarm procedure has its position - your pricey previous mum may not be going to be growing her personal procedure any time quickly. but when you're analyzing this publication, you're most likely a builder or a hobbyist with the entire talents required to do it your self. With development a house safety procedure with BeagleBone, you are going to examine every little thing you must understand to improve your individual state of the art safety method, enthusiastic about below a year's worthy of tracking fees out of your neighborhood alarm company!

You will begin via construction and checking out your and open resource software program on an experimenter's prototype board sooner than progressing to extra complicated structures. you are going to then find out how to try your new creations in a modular type and start to make use of BeagleBone. as soon as your procedure is equipped and established, you are going to set up a few of the professional-grade sensors utilized in glossy alarm platforms and use them. additionally, you will become aware of the best way to expand your alarm process in various other ways. the single restrict could be your imagination.

What you'll research from this book

Understand the elements of an alarm system
Build a simple sector 1 alarm system
Modify your alarm procedure to accomplish complicated tasks
Build the particular onto BeagleBone
Integrate domestic automation into your safety system
Protect your community from intruders
Keep a watch in your method from at any place within the world
Install and use a variety of sensor equipment
Approach

Building a house defense method with BeagleBone is a realistic, hands-on consultant for functional, hands-on humans. The booklet comprises step by step directions for assembling your personal on professionally synthetic PCB's and developing the software program in your system.

Who this booklet is written for

This publication is for somebody who's drawn to alarm platforms and the way they paintings; for hobbyists and basement tinkerers who like to construct issues. on the way to construct the defined during this publication, you will want a few simple soldering talents, yet the entire elements are of the thru-hole type and are really easy to place jointly. in terms of software program, you could simply run it as-is, but when you need to regulate the code, you will want wisdom of Java and IDEs.

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Extra resources for Building a Home Security System with BeagleBone

Example text

In this project book, it is replicated four times for four zones. However, readers are free to replicate this circuit for as many zones as they have inputs on their BeagleBone. The EOL – End Of Line resistor An end of line resistor is a resistor that is installed in the last device (sensor) of a chain of devices; hence the term end of line resistor. Resistors R4, R3, and the end of line resistor (marker EOL on the schematic) form a voltage divider. 2K in series and they are connected to 12V. 4V at the plus input of the comparator when the alarm contacts are closed.

Open circuit condition [ 15 ] Our Very First Alarm System The following diagram shows what happens when someone or something shorts out the alarm contacts. Contacts shorted What if the burglar tries to jumper the alarm contacts and shorts out the EOL resistor? In this case, the minus input of the LM339 comparator goes higher than the positive input, and once again the output is pulled low. 0V) is applied to the positive input, and the sense voltage is applied to the minus input. If the EOL resistor is shorted, then 12V is applied to the minus input of the comparator, and the output is pulled low, once again.

This is the board that is used to activate lights, sirens, and so on. You can control up to four devices with this board. Building the Hardware • The third board is the one that makes this project a BeagleBone project. What this does is connect the other boards to BeagleBone. If you want to add zones or outputs, this is the part of the hardware that you would modify. This book uses the original BeagleBone board as the alarm system controller. However, any microcomputer board with input-output capability can be used with this hardware.

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