I'm trying to get an "app" created to run a com port on my local machine to control some electromechanical equipment. The issue is connecting to the local machine from a phone or laptop using WiFi and pulling up a "web page" (in PHP???) that can then communicate to the local com port and send ASCII commands.
Can this be done with PHP? How does the WiFi router find the local "app" and connect to it? What's involved in connecting to the com port?
Is this a PHP project or should it be done some other way?
I need help. :confused: