user16651: Using Temperation through arduino to trip off an ac device?

user13432: Yes, there are lots and lots of project descriptions similar to yours (if I guesstimate) on the web. Google is your friend. 
Here is one link to an interesting project - if you are interested in brewing beer. 
Cheers!

16651: <p>Using Temperation through arduino to trip off an ac device?</p>
 13432: <p>Yes, there are lots and lots of project descriptions similar to yours (if I guesstimate) on the web. Google is your friend. </p>

<p>Here is one <a href="http://makezine.com/2014/03/28/arduino-controlled-tec-coolingheating-system-for-beer-fermentation/" rel="nofollow">link</a> to an interesting project - if you are interested in brewing beer. </p>

<p>Cheers!</p>
