Question

I need to read the serial port as an input for a web based application.

I know that the browser can’t do it, but if I build a DLL and send it to my client, can I access this DLL and read the serial port with JavaScript or I will need something like ActiveX?

Answer 1

The active X Control will be able to access the serial port.

Here is a link on how to create one and access it through JavaScript

http://dotnetslackers.com/articles/csharp/writinganactivexcontrolincsharp.aspx

(You don’t need .net to write it, but this is what the example uses).