![]() The latest firmware supports up to 40 programs on OpenSprinkler 3.x and OSPi. How many programs does it support? What about program schedule dates and start times? The ‘3-wire 9-24V AC/DC’ type is also compatible with OpenSprinkler AC-powered, however, because of the way 3-wire valve works, each valve will take 2 zones (one for opening, one for closing). The ‘2-wire auto return’ type is directly compatible with OpenSprinkler. Motorized ball valve may also work with OpenSprinkler: for example, US Solids sells several types of motorized ball valve. The Latch controller is also powered by a DC adapter, and operates latching solenoid valves only. In addition, DC-powered version can work with any input voltage from 7.5VDC to 12VDC, including 12VDC solar panel. For International customers: DC adapters are generally much easier to find than AC adapters. The main difference is that the AC version is powered by a 24V AC adapter and the DC version is powered by a low-voltage (7.5V) DC adapter. AC-powered and DC-powered versions both operate standard 24VAC sprinkler valves. Moreover, OpenSprinkler 3.x provides three different flavors: AC-powered, DC-powered, and Latch. We currently offer OpenSprinkler 3.x (the default version has built-in WiFi, you can additionally purchase a wired Ethernet module if you prefer wired connection), and OpenSprinkler Pi (or OSPi, driven by a Raspberry Pi). What are the different hardware versions? ![]() The latest firmware supports a maximum of 72 zones on OS 3.x and OS 2.3, and a maximum of 200 zones on OSPi. Our app lets you to access multiple OpenSprinklers together for unlimited coverage. It’s low-cost and expandable: it can scale from a few zones for a modest house up to 72 or even 200 (using OSPi) for a large business installations like home owner associations. Its applications include lawn and garden watering, plant irrigation, drip irrigation, hydroponics. OpenSprinkler is for homeowners as well as business owners including growers, farms, business parks, ranches, golf courses, and sprinkler service professionals. In addition, the WiFi version can function without external router, ideal for situations where you don’t have Internet connection at the field.
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