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 ...

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 has ...

THEY SEEM TO BE JUST ABOUT EVERYWHERE. QR CODES OR QUICK RESPONSE CODES ARE SMALL BARCODES THAT WHEN YOU SCAN THEM WITH YOUR PHONE, TAKE YOU JUST ABOUT ANYWHERE. LIKE THIS RANDOM YOUTUBE VIDEO OF ME ...

A study by the University of Barcelona and the Universitat Oberta de Catalunya presents a mathematical solution to make it easier to read these two-dimensional codes on deformed surfaces, such as ...