polling serial port data through javascript

[Ajinkya]

How can I poll for serial port data using javascript ?

 

[Jeremy J Starcher]

How can I poll for serial port data using javascript ?

Within the web browser, you can't.

Under Windows, there may be access to a scripting object that can access
the serial ports. I would ask in microsoft.public.scripting.wsh

If this MUST be done in a web browser, the best option is to run a
separate program to read in the serial data and write it to a text file.
The web browser can use HttpXMLRequest to re-read the file as needed.

Might I ask why you need to do this?

 

[Thomas 'PointedEars' Lahn]

Within the web browser, you can't.

Yes, you can. What is required is only a fitting API that provides language
binding for (the) ECMAScript implementation(s).

Under Windows, there may be access to a scripting object that can access
the serial ports. I would ask in microsoft.public.scripting.wsh

And there is no reason why you could not use that "scripting object"
(actually an ActiveX/COM object) from within MSHTML, may it be Internet
Explorer or an HTA. There is also XUL to consider for Gecko-based UAs.


PointedEars

 

[The Magpie]

How can I poll for serial port data using javascript ?

Yes you can, but you need an API to call. I can't give more details,
but I know a man who can - he did it to poll a serial printer port.