Yes. I have already tried that. But it is not possible that approach on my project because I am using one Wifishield that is not shutting down when arduino goes to sleep. And wifishield is eating all the battery. I have further investigate that an seems that the only solution is to power down the whole boards-circuit-thing and them to power up at specific time… for example with Art Controller + Chronodot
Art controller is on the way to home, so I will update how it was.
Regards
