I have a simple goal, but an unknown path as to how to get there.
I want to do a poor mans geo-fencing. I would like to programmatically PING my cell phone network (WiFi) IP from ISY. I run a "reserved DHCP" configuration, so the internal home IP for the phone never changes. If the PING is successful, then set a state variable indicating that I am home and certain commands can be executed. By the same token, if the PING fails, it is indicating that I am away from home and now certain systems will be shutdown or changed.
Is such a thing possible?