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Topic: control lights but also see if they are on (Read 643 times) previous topic - next topic

thijsb

Hello,

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.



Grumpy_Mike

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or do i have too solder it self (i prefer not).

If you are afraid of soldering you will not get very far in electronics.

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Can i buy some shield that i can connect too my arduino that controlls it all ?

No and there is no need. If you have a twin ganged switch that is totally isolated you can connect it directly into your arduino's input pins.

However, I would strongly recommend that you don't because one slip and you make a big bang and possibly a fire. If you are having to ask questions like this you are not yet ready to play about with mains. It would be safer to look at an optically isolated input, but that requires a great deal more knowledge than you have at the moment.

You can get a relay shield to turn you lights on and off.
Lots of places sell them, this is just one:- http://www.myduino.com/index.php?route=product/product&path=40&product_id=245

But please try to get more experience with electronics before playing with mains.

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