What is the DotCode barcode type?
History
DotCode is a two-dimensional matrix barcode symbology characterized by a unique pattern of dots arranged in a square or rectangular grid. It was developed and released in 2009 to address specific challenges in high-speed production environments, making it a preferred choice for industries requiring efficient, high-density data encoding.
DotCode consists of a square or rectangular matrix of dots, and the arrangement of these dots encodes the information, the dots themself are ordered like a checkers board. The size of the matrix can vary, allowing for flexibility in terms of data capacity and print size.
DotCode's structure enables efficient printing, even in high-speed environments. In fact, this is precisely why DotCode was created by the Automatic Identification and Mobility (AIM) industry association, as it can basically be applied by high-speed technologies and it’s mainly used in industries like packaging and logistics, where there is a need to print a barcode on a very high amount of items in a very short time span.
Specifications
The specification for a DotCode is shown below:
However, it’s not uncommon to find DotCodes in this format
Character Set and Capacity
DotCode utilizes a binary character set, encoding data through the presence or absence of dots. This simplicity contributes to its high-speed readability and suitability for variable data applications.
DotCode barcode can encode the following data
- The GS1 data structures as defined by GS1 standards. For more details GS1 provides more info on these data structures here
- All 128 ASCII characters in accordance with ISO 646 standard. This includes basic alphanumeric characters, punctation marks, and control characters
- Extended ASCII characters (128 to 255) and pure binary sequences.
Minimum / Maximum Capacity
The minimum size for a DotCode is 7 dots high, and theoretically, there is no maximum size, although most printing technology has a practical limit of 124 dots in either direction.
A three-dot-wide quiet zone is required on all sides.
Error Detection and Correction
DotCode uses the Reed-Solomon algorithm for error correction, enhancing its reliability in challenging environments. This ensures that even if part of the code is damaged or obscured, the system can still accurately decode the information.
Advantages in using DotCode
As mentioned, DotCode has high capacity to store data due to its high density, also being able to pack all the ASCII characters it can easily be used to store expiration dates, serial numbers with variable character length and unique identifiers while maintaining a very small footprint. This makes it perfect for the tobacco industry and other industries that don’t have much real estate on their packages.
How can the barKoder SDK help with your DotCode scanning requirements
The barKoder SDK integrates advanced DotCode scanning into any app with minimal effort, offering the market's top decoding algorithm. Evaluate its performance with a free trial and explore its features through the Barcode Scanner demo app, detailed documentation, and blog posts.
