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 ...

Want to serve download links, share passwords, give navigation guides, and share business cards? Here's a guide to help you to generate QR codes yourself.

If we can crown a single winner for the last two years, it’s the QR code. Once an inconvenience, the obnoxious little black and white squares have become indispensable and hygienic ways to ...