Comment by infogulch

Neat! Barcodes are much more complex that I knew before looking into it. I used JsBarcode [1] to create a special barcode that reprograms a cheap barcode scanner we got on Amazon to be able to scan both UPS and FedEx tracking numbers. It is published on CodePen [2].

[1]: https://github.com/lindell/JsBarcode

[2]: https://codepen.io/infogulch/pen/yyLJdrP