I'd like to be able to gather and log some stats about my swimming pool, and perhaps turn the pump on and off either remotely (via a web page or similar) or automatically based on temperature (the pump not only runs water through the filter, but also through the solar heater).
Some of the data gathering points have no mains power close at hand, and adding a wire back to the house would be a PITA. The data should end up on a linux based computer (as I don't have windows at home, and this is a linux list!). What I am really looking for is some method of grabbing this info and transmitting it to a central point, with the central point being weither a computer, or a device accessible over ethernet. I envisage something: 1. waterproof 2. low power 3. chargeable by a small solar cell or similar 4. communicates wirelessly. This could either be 802.11g or some other protocol, as long as the data ends up being accessible from the lan at some point 5. Some device that is computer controlled, waterproof and can be switched from a computer, preferably wirelessly. 6. Cheap :) I have heard of zigbee, arduino and the like, I'm just not sure where to start on my research.
