Instructables bitsandbots has created a garden controller to helps us manage the environment by controlling fans, heaters, lights, pumps, and notifying us when the garden needs our attention.
"THIS CONTROLLER DOES NOT REQUIRE AN INTERNET CONNECTION'
The 'CoreConduit' Garden Controller System will help you to grow:
Greens such as lettuce, spinach, Swiss chard, and kale.
Herbs such as basil, parsley, oregano, cilantro and mint
Tomatoes, peppers, strawberries, and many more
bitsandbots shows us how; http://www.instructables.com/id/CoreConduit-Automated-Garden-Controller-System/