1. CONNECTING WITH
QR CODES
Marsha McDevitt-Stredney
Katrina Miday
State Library of Ohio

2. What are QR Codes?
 Quick Response Code
 Also called
 Graphical tag
 2D Barcode
 Matrix Code
 Developed by Denso Wave in 1994 to help
track inventory

3. What makes them different?
1D Barcode 2D Barcode
 Uses only length  Stores data vertically
 Height is for scanning and horizontally
convenience  Read by image scanner
 Read by a laser  Stores up to 7,089
 Stores 30 ASCII characters characters

4. What can it store?
QR Code Data Capacity
Numbers Max 7,089 characters
Alphanumeric (0-9 & A-Z) Max 4,296 characters
Binary [8 bits] Max 2,953 bytes
Kanji, full-width kana Max 1,817 characters

5. How is data stored?
Quiet Zone
Format Information
Version Information
Data & Error Correction Key
Required Patterns:
Position Detection Patterns
Alignment
Timing

6. What can it do?
 Open a website
 Dial a phone number
 Post a tweet
 Schedule a calendar event
 Share a contact card
 Open a map
 Launch mobile apps
 More!

7. How are they scanned?
 Usually with mobile phones
 Launch your barcode reader
 Some phones come with software
 Other users will need to download an app
 Scan the code with your camera
 Enjoy the content
 There are QR Code websites that can
translate the barcode via image as well.

8. Creating a Code

9. Creating a Code

10. Creating a Code

11. Creating a Code

12. Creating a Code

13. Creating a Code

14. Creating a Code
and more…

15. Things to consider
Size

16. Things to consider
Size

17. Version (density)
Version 1 Version 5 Version 40

18. Error Correction
 Error correction is the amount of the
barcode that can be missing and it still
work.
7% 15% 25% 30%

19. Where will it be displayed?

20. QR Codes can provide great metrics
 Where people are scanning the code
 Which locations are effective
 Which campaign/poster/signs are or are not
working
 When they are scanning the code

21. QR Codes can provide great metrics
 Some generators provide metrics for a fee OR
 Use custom landing pages OR
 Some URL shorteners let you create and track
 Bit.ly
 goo.gl

22. Create your
QR Code

23. Test your code!
 Scan your printed code
 Try several readers
 Try several phones
 Test all major OS’s
 Test in different lighting

24. How can they be used?

25. Ask a Librarian
Anytime, Anywhere
Explain QR Codes
Link to Video

26. Link to Forms
Scavenger Hunt
Link to mobile website

27. Author Talk
Book Trailer
Mobile Catalog

28. Links to Lists
Links to Searches
Txt message

29. How can they be changed?

30. Shorter URL

31. GIMP: Open Source Image Editing Software
Select by color

32. Fill selection with new color

33. Magic wand to select color

34. Select by color
Fill with image

38. Image credits
http://oedb.org/blogs/ilibrarian/wp-content/uploads/qr_codes.jpg
http://guides.boisestate.edu/content.php?pid=141622&sid=1552856
http://blogaboutmurphy.blogspot.com/2010/10/qr-codes-and-library.html
http://www.lib.lsu.edu/
www.youtube.com/watch?v=GtXS0WyqN8s
Robin M. Ashford's photostream
http://und.edu/news/2011/08/qr-quest.cfm
http://www.systemid.com/qrcode/#.TptNWuywUdh
http://marksprague.wordpress.com/understanding-qr-codes
http://www.systemid.com/qrcode/#.TptNWuywUdh
http://qrcodematrix.com/
http://www.qrdresscode.com/article-weevo-le-qr-code-design-italie-82733375.htm
l
http://www.warriorforum.com/offline-marketing-discussions/445419-best-qr-code-
generator.html