probably this is somewhere on this forum, but i can't find it or i don't know on which words i have too search. Sorry about that.
My question: I want to control multiple 230v lights in my house, so i need some relays. But i also want too see if the light is on or off with my arduino. Because all the lights have physical switches so it is gonna be a two-way switch/hotel switch (i don't know the correct word) Can i buy some shield that i can connect too my arduino that controlls it all ?
or do i have too solder it self (i prefer not).
I hope some of you guys can help me.