QR codes have a wide range of uses that help people avoid contact with objects and close interactions with other people, including for sharing restaurant menus, email list sign-ups, car and home ...

These QR codes are scanned by a merchant, likely using a 2D bar code scanner. Encoded in that QR code is the consumer’s method of payment and their digital signature.

The QR code anatomy: data (1), position markers (2), quiet zone (3) and optional logos (4). Scott Ruoti , CC BY-ND The data in a QR code is a series of dots in a square grid.

A QR Code is composed of several key elements that work together to ensure accurate and efficient scanning. Position Markers Position markers, also known as finder patterns, are the large squares ...

You’ve scanned them on menus, packages, tickets, and more — but how do QR codes actually work? In this video, we break down the technology behind those mysterious black-and-white squares.