I have this idea in my head, but have no clear way of executing it.
I would like an arduino to monitor my network every minute, to check for certain mac's. If it would detect either the mac of my smartphone, or my wife's smartphone, it can switch on certain appliances. Between a certain time-interval, this does not count, unless manually overridden.
The way I see it: When neither me or my wife is home, the water filtration unit, well pump, ventilation unit, network printer... Need to be completely shut off (relay card). When either one of us arrives at home (smartphone connected to the network), all these devices can receive power. But when we go to sleep, even though we are still connected to the home network, I want these devices off again. For this I would use a fixed interval, which can be manually overridden.
Is this possible?