are qr codes and pkpass files the same? what other formats do transportation authorities use?
TimLovesTech (AuDHD)(he/him) @ TimLovesTech @badatbeing.social Posts 0Comments 1,379Joined 2 yr. ago

TimLovesTech (AuDHD)(he/him) @ TimLovesTech @badatbeing.social
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Your generic "barcode" for something like a UPC is considered a 1D barcode and uses things like the spacing of the lines and thickness to encode data. Although some 1D barcodes can detect the barcode is damaged they cannot do error recovery.
Your 2D barcodes, like QR or Data Matrix, store data in both directions and depending on format can have varying levels of error correction (duplicate data) built into the barcode. They also obviously can take up less room and hold the same or more data as well. You do need a scanner that can do 2D barcodes though, as not all scanners will read them.