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. Connectivity Options: we offer both controllers with built-in WiFi and controllers with built-in Ethernet connector.It not only stops watering when it rains, but also scales water time up and down based on your local temperature and humidity. Smart Control: OpenSprinkler can connect to the Internet and use real-time weather data (including historic and forecast data) to automatically make water time adjustments.Remote Access: you can access your OpenSprinkler anywhere and at any time, whether you are at home, at office, or traveling away.The web interface is much more intuitive than a small LCD screen. Instead, use web browsers and mobile apps to set or change sprinkler programs. Intuitive User Interface (UI): no more messing with buttons and knobs, no more running to your garage to make a single sprinkler program change.A web-connected controller like OpenSprinkler provides the following advantages: It’s a drop-in replacement for conventional sprinkler controllers that are not web connected. OpenSprinkler is an open-source, web-based sprinkler / irrigation controller. For additional help, please visit the Support page, or use the Forums to report issues. NOTE: This page documents the most commonly asked questions.
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