dotcodes

A dotcode is a type of two-dimensional barcode that encodes data using a pattern of dots. Unlike more common matrix barcodes like QR codes, dotcodes are typically characterized by their circular or square dot shapes arranged in a grid. The information is stored in the presence or absence of these dots, or variations in their size or color, within the grid.

The primary purpose of a dotcode is to provide a machine-readable method for storing and retrieving data. This can include URLs, contact information, product identifiers, or any other form of digital information. When scanned by a compatible reader, such as a smartphone camera with appropriate software or a dedicated scanner, the pattern of dots is interpreted, and the encoded data is presented to the user or used to trigger an action.

Dotcodes offer advantages in certain applications due to their compact nature and potential for high data density in a small physical space. They can be printed on a variety of materials and are designed to be robust, capable of retaining readability even when partially damaged or obscured. The specific design and encoding scheme of a dotcode can vary between different implementations, leading to proprietary or standardized systems. Their use is often seen in niche areas where efficient data encoding in a visually distinct format is beneficial.