Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Arduino By Example

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

Arrow left icon
Product type Paperback
Published in Sep 2015
Publisher
ISBN-13 9781785289088
Length 242 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Authors (2):
Arrow left icon
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
Arrow right icon
View More author details
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.

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime