June 2013
Beginner
404 pages
9h 31m
English
Content preview from Arduino Projects For Dummies
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Chapter 9
Building an RFID Tag Reader
In This Chapter
Understanding RFID
Building your own RFID shield
Programming an RFID reader
Connecting your shield to other projects with a relay
If you’re reading this book, you’ve probably heard of radio frequency ID (RFID) tags and know that they are used for tracking things like packages and small inanimate objects. They can also identify animate objects, such as pets, cattle, and even people! In addition to things like inventory control and security, RFID also serves as a quick and easy mechanism for handling small secure payments and other simple transactions.
You can easily get your Arduino to read RFID tags and act upon the unique ID that is encoded on them. In this chapter, you find out about a few of the different kinds of RFID systems and how they work. You use an Arduino to control an RFID reader module and respond to the information it spits out when a tag is brought near the reader. With this knowledge, you can add RFID to just about anything, including other projects in this book, such as the keypad entry system in Chapter 8
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.