There is Win32API::CommPort.
Once upon a time I used to write testbed code for hardware I designed. Generally the system control and monitoring was all done on RS-232 ports. We were using Windows, and for at least the last 5 or 6 years that I can recall we always did our testing in the lab with Perl.

In reply to Re: How to read the RS-232 lines? by Anonymous Monk
in thread How to read the RS-232 lines? by Anonymous Monk

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