I have a ds1307 Real Time Clock: http://www.sparkfun.com/commerce/product_info.php?products_id=99
I programed it by the ds1307 library existing in this arduino forum to have my real local time. http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1191209057
For the moment it is not so accurate, but this is other history.
This post is to ask is somebody made an alarm with this component. I mean: it has a not volatile memory, so i would like to know if it is possible to program it to get up (or call to) the arduino ones each hour, or four hours, or an specific date and hour, or something like that in order the arduino could develop some measurements of sensors connected to it...
Is it possible? if so, how to do it?