New: check out our new DC powered OpenSprinkler, which is compatible with both AC and DC solenoid valves, and provide more versatile power options.
OpenSprinkler is an open-source, web-based sprinkler / irrigation controller for lawn and plant watering, drip irrigation, hydroponics etc.
Intuitive User Interface: no more messing with buttons and knobs, no more running to your garage to make a single change to your sprinkler programs. Instead, use web browser and our free mobile apps to access OpenSprinkler from anywhere, whether you are at home, office, or traveling away.
Smart Control: our weather algorithm automatically adjust your sprinkler run times using real-time weather data. It not only stops watering when it rains, but also adjusts the water time on a continuous scale based on your local weather conditions.
Expandable: 8 zones on the main controller; expandable to 48 zones with OpenSprinkler expansion boards. Have more than 48 zones? Our app can manage multiple OpenSprinkler systems for limitless expansion.
Compatibility: OpenSprinkler is a drop-in replacement of conventional sprinkler controllers. It supports master zone / pump start relay, rain sensor, and it has buttons and LCD for manual control on the controller.
Open-Source: OpenSprinkler is built on open-source software and hardware. Its design files are publicly available on Github. Our mission is to educate and to leverage community wisdom to help make the best sprinkler controller. If you have technical skills, you can extend its capability any way you need.