But what if you want to read QR codes? [James Bowman] noticed a $7 module that claims to read QR codes so he decided to try one out. The module seems well thought out. There’s a camera, of course.

The only problem is, many of those QR code-reading apps for the iPhone just don't do a good job. That prompted me to sift through more than a dozen QR code readers to find some of the best. I came ...

A quick response (QR) code is a type of barcode that can be read by a digital device to provide a greater amount of information than would normally be feasible.

Ever wonder what those weird black-and-white square codes are? Here's how to read them with an iPhone, a BlackBerry, or an Android smartphone.

Did you ever watch Star Wars and wondered how people understood what R2D2 was saying? Maybe [Luke Skywalker] would enjoy learning to decode QR Codes by hand, too. While it might not be very ...

Sometimes, we try to capture a QR code with a good digital camera on a smartphone, but the reading eventually fails. This usually happens when the QR code itself is of poor image quality, or if it ...