How would I make up some WiFi three way switches CHEAPLY?

I might need 7 or 8 of them so at $30.00 - $50.00 a pop I do not see using commercial switches from GE or others.

The WiFi part is easy, then what would I need a relay (DPDT)?

Is there latching relays?

Here is my pseudo control.

So I connect to a web server with my smart phone.

The web server pulls a pin high to trip the relay.

Or the Web server could connect to a WiFI module that would pull a pin on it's processor to trip the relay.

It would be nice to have a latching relay so the pin does not have to stay HI, I think.

So what do you think?

Ralph

Ok here is a .

It seems as if I could substitute a DBL Pole DBL Throw relay for the four way switch. Or possible one of the threeway switches.

Ralph

Well luckily for me I was not the first to think of this!!

Ralph