Adding a camera to a project used to be a chore, but modern camera modules make it simple. But what if you want to read QR codes? [James Bowman] noticed a $7 module that claims to read QR codes so he ...

While QR code menus were introduced as a convenient, contactless solution, growing numbers of customers say they create frustration and disrupt the dining experience.

Speed is essential to a well-managed recall. The faster consumers are alerted and understand what to do, the faster contaminated products can be identified, returned, or discarded. That’s why QR codes ...

It’s hard to believe that something nefarious can lie within a QR code, but it can. QR codes have become a convenience of modern life. Just scan the black and white mosaic with your phone’s camera and ...