OpenValve

Open-source 3D-printable irrigation controller that waters plants based on real soil moisture.

Physical productfree

OpenValve is an open-source, 3D-printable irrigation controller built around a bistable pinch valve. It waters plants based on soil moisture readings rather than a fixed timer, works with gravity-fed and low-pressure setups, connects via standard half-inch threads and runs for months on a 9V battery. It is aimed at people watering balconies, garden beds and small greenhouses who want a repairable, self-built system.

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