[Twisted-Python] UDP + TCP + Serial
wthie at thiengineering.ch
Fri Apr 20 16:29:25 EDT 2007
Might be that I have something useful for you - please see the attached
zipped code. Basic idea was to have a serially connected device
accepting commands and delivering status information connected to a
browser via a server delivering LiveFragments.
A few problems remain open, like:
- how does one uniquely connect only one browser capable of sendign
commands (the SPS is a single resource)
- are other browsers able to connect and do a status display only
Forgive me if I did did not use twisted/nevow/athenain in all aspects
correctly, but with lots of source/doc re- and rereading I was able to
bring it that far. If there are patterns I should avoid or correct I
will gladly do so if pointed out to me.
Roel Schroeven wrote:
> I'm looking for a way to combine serial input with UDP (and possibly
> TCP) communication.
> Currently I have a very simple quick-and-dirty script using pyserial and
> the socket module without Twisted that reads line-based data from a
> serial port and sends it out using UDP. It works very well, but
> functional and reliability requirements are growing and I'm looking for
> a better design. New functionality that we'll need is connection to a
> database, two-way network communication to control the program while
> it's running, and perhaps the ability to use encrypted connections for
> the output data.
> Twisted seems nice, but apart from a few simple hello-world-style test I
> don't have any experience with it. It doesn't seem too difficult though,
> except for one thing: I can't find any concrete information on how to
> combine serial communication and network communication. What reactor do
> I need? How do I initialize it? How can I make it listen to both a
> serial port and one or more UDP and/or TCP ports? I need to do this on
> Linux, but it would be nice to have it working on Windows too.
> Many thanks,
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 4272 bytes
Desc: not available
Url : http://twistedmatrix.com/pipermail/twisted-python/attachments/20070420/713b5897/attachment.bin
More information about the Twisted-Python