Tag: QR Code

QR codes are a way to send information to mobile devices (e.g., a smartphone) using its camera. You send a short blurb of text, or a web address (URL) by representing it as a code which people photograph from their phone.

The codes are easy to generate. Several web sites and software programs will make the codes for you.

To read the codes, users need a QR reader app to take a snapshot of the code with their device’s camera. The app returns the decoded text or web URL.

In the photo at left, a pedestrian takes a photo of a QR code promoting an Andy Warhol show.

There are hundreds of barcode-reader apps (e.g., RedLaser and QuickMark for iOS and Android devices, and the Kaywa reader for dumber smartphones), and code-reading can be included in custom apps, e.g., a museum tour. (more…)