An anonymous reader writes: A company called 22seeds just launched a Kickstarter campaign for Greenbox, a smartphone-controlled home irrigation controller. It uses iOS devices to interface with the controller unit, and helps conserve water by using weather information from their backend to adjust the watering program. It's also much cheaper than other products in its class. Interestingly, it uses Bluetooth Smart technology, which is rather uncommon, but is supposed to provide a solid user experience. Compatible with all iOS devices from iPhone 4S and forward.