17 Replies Latest reply on Jul 25, 2016 10:26 PM by shabaz

    Arduino relays for lighting




      I'm building a new house, and I decided that I want microcontrollers to control my lighting. Now I have dimmers covered, with a 0-+10V system, but surprisingly I'm struggling a bit with the lights that should just be on or off. I figured it should be doable with a relatively cheap array of relays connected to an Arduino. I'm not going to get my hands dirty, my electrician is (which is, I should say, a good idea). He insists on the following standard for the relays:

      • CE certification.
      • at least 240 VAC
      • at least 10A
      • DIN Rail mountable


      I'm guessing I could satisfy the last requirement with a PCB in something like this: http://cpc.farnell.com/pulse/acc-case-m/flightcase-universal-medium/dp/DP31699

      I have not yet found a product, that matches all of the top three though: I found something in various shops that has 250 VAC @ 10A, but no visible CE mark, and I found one on hobbyking http://hobbyking.com/hobbyking/store/__26921__Arduino_6_Channel_Relay_Module.html that had a CE mark, but could only do 240VAC @ 7A. I'd like something like that, with 6-8 channels would be nice.


      It would be nice if the electrician could order all the products from Farnell, since they have a Norwegian office and I have used them for some other projects. Any pointers?


      Message was edited by: Matt Collinge. Updated CPC link.