
	ECE4253 Digital Communications

	Department of Electrical and Computer Engineering - University of New Brunswick, Fredericton, NB, Canada

Code 39 Barcode Generating Tool

This online tool generates a 1-dimensional barcode symbol (Code 39) representing varaible length text messages according to standard ANSI/AIM BC1/1995.

Code 39 is a simple barcode that uses no error control and a limited set of 43 characters as:

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z - . spc $ / + %

Variations

• Extended Code 39 incorporates 128 7-bit ASCII characters using the above set in letter pairs (e.g. '?' = '%Z')
• Code 39 mod 43 incorporates error control by appending a (mod 43) checksum character to the data.

Encoding Result

The supplied text is printed below the corresponding Code 39 barcode. Select View Bits to see more detail and discussion. Encoding


2025-04-24 14:39:54 ADT Last Updated: 2016-05-28	Richard Tervo [ tervo@unb.ca ]	Back to the course homepage...