Bluetooth circuit design - Help please!

[spec07]

Hi guys, I have a school project which requires me to turn on/off the circuit using bluetooth, is there any sample circuit which I can refer to for this? I am also not sure which bluetooth device to use for my circuit as well. I saw some recommendation for TI CC2540 but it seems so complicated. Do I really need this just for my application of turning on/off?

And advice or recommendation is deeply appreciated.

[KMoffett]

As my wife says "It's only complicated if you understand it". That goes for Bluetooth.
You would be far ahead buying an off-th-shelf switch like:
http://www.monoprice.com/Product?p_id=10530&catargetid=320013720000066114&cadevice=c&kpid=110530&gclid=COHk0ZCqusYCFQuMaQod0PgCWg
But, then you didn't say what you were trying to switch on-off. 12OVAC? 5VDC?

Ken