I am new to the arduino world. I want to make a simple relay switch that sits ontop of a cord connected to my wall (220V).
I want it, on my command using arduino, to turn on and thus turn on a light.
I have a Compact fluorescent lamp as my light bulb (one of those energy saving lights.
My arduino is connected to my laptop via USB for power (I bought and am waiting for a 9V wall adapter)
The circuit i'm using is as shown in this site.http://www.glacialwanderer.com/hobbyrobotics/?p=9
My circuit works fine until the relay (I checked and can see the diode site that is connected to the relay is getting 5V or 0V on my command using arduino, but for some reason the other side (i.e. the output of the relay) is always on 0...
Any suggestions on what I might try in order to get this working?