Aaron Patterson put a QR code into his RubyConf Brazil Presentation.
Aaron Patterson Shows the Way
At RubyConf Brazil last week, Aaron
Patterson (@tenderlove) posted his
contact information as a QR code as a slide in his presentation. How
cool is that? I managed to snap a picture of it while it was on the
screen and later downloaded a QR scan program for my iPhone to decode
QR codes are 2D bar codes that can easily be printed. You can
encode URLs, phone numbers, SMS messages, or even just plain text in a
QR code. Check out Wikipedia
for more information.
To get started, grab a QR scanner for you phone. The AT&T
works pretty well and is available on a wide selection of phones.
QR Code Examples
To get you started, here’s a link to my twitter feed. If you are
using the AT&T scanner, just start the program and aim the camera at
the graphic below. After a moment, the scanner will automatically
detect the QR code and offer to send you to the URL.
Next up, my contact information:
And finally, a little snippet of Ruby code. Does anybody recognized it?