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Arduino By Example

You're reading from   Arduino By Example Design and build fantastic projects and devices using the Arduino platform

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Product type Paperback
Published in Sep 2015
Publisher
ISBN-13 9781785289088
Length 242 pages
Edition 1st Edition
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Authors (2):
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Adith Jagdish Boloor Adith Jagdish Boloor
Author Profile Icon Adith Jagdish Boloor
Adith Jagdish Boloor
Adith J Boloor Adith J Boloor
Author Profile Icon Adith J Boloor
Adith J Boloor
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Toc

What is a passive infrared sensor?


A passive infrared sensor (PIR) is an electronic sensor that uses infrared radiation to detect variations in its field of view. They are most commonly used as motion sensors; for example, they are used to minimize power consumption by switching off lights and utilities if nobody is at home. They are also used in state-of-the-art burglar alarm systems to trigger a switch when motion is detected.

Note

If you would like to learn more about how they work, you should refer to this page (https://learn.adafruit.com/pir-passive-infrared-proximity-motion-sensor/) at Adafruit. Adafruit and Ladyada are really good resources for building Arduino projects.

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