What is a QR code? A guide to the barcode's basics, why you're seeing it everywhere, and how to scan one

QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account ...
Hackaday

Color Can Triple QR Code Capacity

Recently [mit41301] wondered about increasing the data capacity of QR codes, and was able to successfully triple the number of bits using color. He chose the new rectangular micro QR code (rMQR) ...
WTKR

Is that QR code safe? What to check for before scanning

NORFOLK, Va. - Quick Response (QR) codes are everywhere these days because they're an easy, contactless way to read a menu or download an app. While square barcodes can be convenient, they can also be ...
Popular Science

How to cross-stitch a QR code—and why you should

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. If you’ve ventured out lately, chances are you have seen a bit of ...
Popular Science

How to open a QR code on your computer

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. You probably already know how to scan a QR code with your phone. It ...