You might be able to fork() the process at startup, where the parent does all the logic and stuff, and the child only does the low level serial communication. Then the parent can periodically check if the child still reacts, and restart it if required.

I'm not what the best way to do IPC between the processes on Windows, i am a Linux guy. From what i understand, Unix domain sockets (AF_UNIX) are now available when using at least Win10 and a modern version of Perl, otherwise you can just use TCP on localhost.

I wrote a forked program example (for Linux) in Autoclicker! Cheating is winning, too! (look for the header "VERSION 2") that does inter-process communication. Maybe this is some help to your problem.

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In reply to Re^3: Win32::SerialPort - How do I detect if device is still connected? by cavac
in thread Win32::SerialPort - How do I detect if device is still connected? by petro4213

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