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How to encode code 39 barcode? Code 39 encoding consists of giving every character (represented by a set of nine elements, five bars, and four spaces) a distinct pattern of bars and spaces. A variable-length string of characters with an asterisk (*) serving as the start and stop characters make up each character. A Code 39 barcode can have wide or narrow bars and spaces, with each wide element being three times wider than a narrow element. How to read and decode code 39 barcode? Linear barcode used for tracking, inventory control, and identification in a various business. Code 39 is often known as a one-dimensional (1D) barcode. This barcode is sequence of wide and narrow bars with different widths, and these bars correspond to a series of alphanumeric characters. The code 39 barcode has an easy-to-read and decode structure due to its simplicity. Reading process of code 39 barcode - You need a barcode scanner that can read 1D barcodes in order to read a Code 39 barcode. The red laser beam that the scanner produces reflects off the barcode. After determining the separation between the bars and spaces, the scanner converts the data into a string of alphanumeric characters. Decoding process of code 39 barcode- Transforming a sequence of bars and gaps into a set of alphanumeric characters is the process of decoding a Code 39 barcode. Five bars and four spaces are used to represent each character, with each bar and space denoting a "wide" or "narrow" element. An asterisk (*), which acts as a start and stop character, marks the beginning and end of the barcode, respectively. For example, the sequence of bars and spaces that follows represents the letter "A": W N W N W W N W W N W N W N W where "W" stands for a wide element and "N" for a narrow element. The sequence of bars and spaces would be compared to a code 39-character set table in order to decode this character. Every combination of broad and narrow elements is mapped to an alphanumeric character in the database.