The wizards over at Wotton Pool have created a system that allows them to control the solar-heated system for the pool with a Raspberry Pi. The Pi tracks temperatures throughout the system to decide when to pump water heated by the sun. They've gotten pretty sophisticated about it and even set up a dashboard to give some data on what the Pi has accomplished. The system also is set up so that it can be controlled over the Internet and adjusted from anywhere.
Have you found an interesting example of a Raspberry Pi in action? Let us know in the comments or with our contact form!
source:
Raspberry Pool
The Science Bit (more details)