You'll probably need to be a little more clear in what your trying to achieve before you'll get a good answer.

• Do you want to have a conversation between your program and the device(s) on the other end or just 'monitor the traffic passing through?
• What OS(s) are you targeting?

Hmm.. i see..

The program is to receive data. This data is transmited by satellite and received by a device that is connected to a com or serial port.

What I want to do is a program that listen the port and when it receives the data do some king of process.

My question is if there is any module that can listen a port. The OS can be either windows or linux.

Thank you for your valuable help.

Nuno

Take a look at Win32::SerialPort, Win32::CommPort and Device::SerialPort.

---

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
If I understand your problem, I can solve it! Of course, the same can be said for you.

need to capture serial port output

thanks.. I'll remember that..

Thank you for your help.

I´ve seen a little bit of the modules and the post that you suggested, but i´m wondering if with this module i can make a script that is always "watching" the port! And when the port receives something the script processes something.. but being always watching the port because we´ll never know when we are going to receive data!

Thank you once again

Nuno

Take a look at the code at this node I use to read a Geiger Counter.

Serial Port

Hope it helps.

Diskcrash

Thank you very much for your tip!

In fact that solved my problem, thank you.

I have one more question. I´m using this code in a machine with Linux, and the code catches the data that comes from the serial port. The problem is that i cannot capture special caracters such as: é or olá, any caracter that as an accent!

For example: it appears "informa‡”es" instead of "informações"

Is there any way of resolving this?

Thank you very much for your help.

Nuno

If you want to be able to read utf data from your serial port, then you probably need to be using at least perl 5.8, and using the new "IO layer", ':utf8' on the open to set the filehandle to expect utf-8 data.

If your using Device::Serial, you probably aren't doing the open yourself, in which case you need to get hold of the filehandle being used (which appears to be available via $PortObj->{FD}) and use binmode to set the IOlayer to utf8

use Device::SerialPort;

my $PortObj = Device::SerialPort( ... );
binmode $PortObj->{FD}, ':utf8';
...
[download]

Note: This is an educated guess. It's based upon my use of Win32::SerialPort (of which Device::SerialPort is an emulation), but I've no way to verify the speculation.

HTH.

---

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
If I understand your problem, I can solve it! Of course, the same can be said for you.