On 02/15/2017 03:17 PM, Mark Lloyd wrote:
I may want to set up some kind of switch that turns on a light if anyone
steps on the porch. Preferably one that can tell the difference between
delivery people and cats.

A guy at work has his front door wired up to his smart phone. It alerts
him when someone approaches the door. He gets video and audio feed and
can also give a delivery person instructions if need be.