I can easily switch on and off a 220V source using an electromechanical relay. But I am now looking for a much more versatile solution. Something that can not only switch the source on/off but also use them as dimmers. I had no idea how to do this so a friend of mine (from electronics background) said I could use SCR circuits to this, but he had no idea about what ICs could accomplish that. So a visit to a local store and now I have a couple of TYN612 IC which is an SCR capable of controlling upto 600v AC at 12amps.
Now, Using TYN612 how can I build a dimmer circuit, that can be controlled using arduino, which could also control on/off at 220V AC. Or any other alternative is welcome.