Boris Landoni writes about an open source sprinkler system powered by Yún:
A control unit for the garden sprinkler that can be controlled via web and smartphone thanks to Arduino Yún.
With summer approaching, our plants and our gardens need some regular watering in order to stay lush and green as we like them. It’s not easy to always remember to water plants and gardens and try to always be at home at the same time every day, so we asked ourselves, instead of taking some time every day to water plants and flowers, wouldn’t it be better to take advantage of our passion for electronics and realize an automatic system to do this for us? This is the idea at the base of the project we are going to show you in this article, which consists of a control unit for a garden sprinkler based on Arduino Yùn and a relay board that can interconnect with it. Control unit can manage a configurable number of outputs, a rain sensor and it can be programmed through a web interface reachable from any PC or smartphone connected to your home network. By adequately configuring the router where the sprinkler will be installed, you will even be able to control the system from the Internet.
Project info at Open Electronics.