Web Barcode Scanner

Question

Programming

Hello, can you advise and tell about barcode scanners. I know that the scanner can work in the COM port mode (how does USB work?) And in the keyboard emulation mode.
There is some kind of web application, and I would like the scanner to open a page with this code when scanning (for example , site.com/index.php?code= )
What kind of software comes with scanners, can it do this?

Another question about choosing a scanner, there are a lot of scanners on Amazon and they all have different
Decode Capability: Code11, Code39, Code93, Code32, Code128, Coda Bar, UPC-A, UPC-E, ISBN, EAN-8, EAN-13, JAN. EAN/UPC Add-on2/5 MSI/Plessey, Telepen and China Postal Code, Interleaved 2 of 5, Industrial 2 of 5, Matrix 2 of 5, more for Request

What types are relevant now in order to take the scanner and it worked (scanning barcodes of parcels)

Answer 1

1. USB scanners usually use a built-in COM converter. For scanners without this feature, you can buy a separate one, they cost a little.
2. Software is different, most often not very functional. Therefore, in 90% of cases it is more reasonable to use the scanner as a keyboard. However, the protocol of these devices is simple, and if such functionality is critical, you can order the development of such a feature somewhere on freelance (or google it - but there is very little chance that you will find it).
3. Wikipedia will tell you the best about the types of barcodes. ISBN, EAN, and UPC are the most common ones (of the linear ones). Russian Post - Interleaved 2 of 5, aka EN 801 ( proof , google in 10 minutes).

Answer 2

Buy a cheap "in-the-keyboard" scanner - PS / 2. It fully emulates the keyboard and does not require any software.
By scanning, the read code is “typed from the keyboard”, the closing character is programmed - it can be a space, tab, new line, or no character. It is programmed by reading a special "control" code from the instruction, or by a jumper.

Answer 3

I haven’t seen a scanner for 7 years, but usb usually does, they play the role of a usb keyboard and work even in thin clients with 1s in a terminal session at the checkout.