I am starting to build new house and want to add some home automation features, for now, turning lights and sockets on and off. i bought arduino mega, ethernet shield, current sensors to see if the light is on, and relays. Can you tell me what is the best practice to get this working, and other thing, i want lights to be turned on and off from the wall switches and in the same time from the arduino. if the arduino is not working or off, lights should still work from the wall switches, thanks a lot
Basically the most convenient consumer option.
This is what I'm doing
more details here: Any obvious problems with this DIY home automation?
This is the cheapest and fail-safe solution I found. Right now I'm still searching for a good on/off current detector but I will probably use a led in parallel with any consumer to detect on/off status.
I am using around 12 arduino boards (mega and uno right now, but more will come) with ethernet or radio shields to communicate.
If you find something better I'm open to any and all ideas.
I don't speak from experience, but this came to mind:
Most people are familiar with a three-way switch -- a light controlled by two different wall switches. Do something similar, but replace one of the wall switches with a relay, etc.