RAYSHOBBY.NET

A common question we receive from users is: “How do I use OpenSprinkler to switch a water pump, a heater, a fan, or similar mains-powered devices?” Here are the top 5 ways to bridge the gap between OpenSprinkler and your high-voltage equipment, ranging from “Zero Wiring” to “Zero Software Configuration“. 1. WiFi Smart Plugs This […]

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Introduction More than a decade ago, I published a blog post titled Understanding 24 VAC Sprinkler Valves. In that post, I took a close look at the sprinkler solenoid’s inrush vs. holding currents under 24 VAC, performed theoretical analysis and actual measurements, and explained the difference in the solenoid’s electrical behavior under AC vs. DC. […]

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Back in July, we debuted the AC-powered OpenSprinkler v3.4, featuring a new, redesigned enclosure and several hardware improvements (read here). Building on that, today I’m thrilled to unveil the upcoming DC-powered OpenSprinkler v3.4 — the very first OpenSprinkler powered by USB-C! Check out some sneak-peek photos below: This model shares the same sleek, low-profile enclosure […]

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Exciting news! We’re gearing up to launch a new hardware revision of the AC-powered OpenSprinkler: introducing version 3.4 — a sleek, refreshed take on the ESP8266-based OpenSprinkler. While it retains the same familiar circuit as the current v3.3, version 3.4 features a completely redesigned enclosure for a refreshing new look. Check out the sneak peek […]

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Occasionally, we encounter application cases where users want to utilize Power-over-Ethernet (PoE), which allows a single Ethernet cable to deliver both network connectivity and electrical power. This setup eliminates the need for a separate power line, making it especially useful in remote or hard-to-reach locations where running additional cables is difficult. To enable PoE, a […]

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