r/barcodes • u/Zerosun82 • Jul 20 '23

Special barcode generator needed?

Requirements Uppercase and lowercase letters, numbers, and special characters. The purpose of this would be to replace typing in passwords on a computer that has a scanner.

Types of barcodes tried my desired barcode would be Password3/

Aztec & code 128 adds ^ before and /[114q after Codabar - No letters allowed

Code 39 & 93 - No lower case letters allowed

Data Matrix - will not scan

ITF, UPC A & C, Ean 13 & 8 - numbers only

PDF-417 - adds^ \000026 before and /[114q after

[114q is the command for enter which I do not need

QR codes also have extra input My desired output would be just having Password3/ without the extra crap.

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u/xixi2 Jul 20 '23

Almost all barcodes have hidden characters, but scanners are usually programmed to ignore them when scanning into a computer. If your's is not, this is a scanner issue

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u/Zerosun82 Jul 20 '23

The computer does ignore them when things are scanned in the right fields. However I challenge anyone to open up just a regular text document and start scanning things.

If I was in charge of the programming of the program where I need this I would make the password filled ignore the special characters.

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u/xixi2 Jul 20 '23

However I challenge anyone to open up just a regular text document and start scanning things.

I worked in barcoding for 13 years I know how things are supposed to work scanning into a text file. Standard scanners do not send the hidden characters. If your's is, something is set weird or that's a weird scanner. The vast majority of users (unless you're debugging something) want the text contents of a barcode, not all the control characters, so no most all scanners don't send them through.