I backed the RFduino project on Kickstarter to use it in my next project. It is basically a tiny Arduino compatible board with built in Bluetooth LE that supports additional shields.
I've also got a regular Arduino Uno with an Ethernet Shield.
What I'd like to build
I'm thinking about a sensor network (humidity and temperature) for indoors using multiple RFduinos with the coin battery shield lying around the house. The Arduino Uno with the ethernet shield and a bluetooth shield connected to a router would send the data to my server, so I can monitor the stats remotely.
Question
I'd like to transmit data every 10 mins to keep energy consumption low. How can I wake up the sensors and my mainstation (the uno) at the same time, transmit data (from sensors to mainstation and from mainstation to my server) and put them back to sleep again? Is there any risk at losing data because one of the sensors might be awake when the mainstation is still sleeping? Can the Uno Bluetooth shield interfere with the Ethernet shield?
I'm not asking for code but does the idea make sense? Links to related projects would help a lot. I also thought about using xbee for data communication but i found it quite complicated and now that Bluetooth LE needs less energy I can't see any advantages of xbee over Bluetooth LE.