What is QR code

A QR code (short for Quick Response code) is a type of two-dimensional barcode that can store a large amount of data in a small square-shaped grid. It can be scanned using a smartphone or a QR code reader.

Key Features:
• Shape: Square with black squares (modules) on a white background.
• Data Storage: Can hold various types of data — text, URLs, phone numbers, etc.
• Fast Scanning: Designed to be scanned quickly from any angle.
• Error Correction: Can still work if partially damaged, thanks to built-in error correction.

Common Uses:
• Opening websites (e.g., menus, product pages)
• Making payments (e.g., mobile wallets)
• Wi-Fi login info sharing
• Event check-ins and tickets
• Downloading apps or files

Example:

A QR code might look like this: