OpenSprinkler Pi (OSPi) is a sprinkler / irrigation extension board for Raspberry Pi (RPi). It allows RPi to directly access and control sprinkler valves. This is version 1.3, with on-board 24V AC to 5V DC switching regulator, solenoid drivers, DS1307 RTC and battery, PCF8591T 8-bit A/D D/A converter (4 input and 1 output channels), fuse, rain sensor terminal, 120V/2A mini relay, and per-station transient voltage suppressor (bidirectional TVS).
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Update: OpenSprinkler new mobile app (native version) is now available on all platforms. Search 'opensprinkler' in iOS App Store, Android Play Store, or Windows Phone Store, then download and install the app. Additional details can be found in this blog post.
|Operating Voltage||22 to 28V AC|
|Output Current||500mA @ 5V to power RPi|
|Built-in Components||24V AC to 5V DC converter, RTC with battery, rain sensor terminal, 4-channel ADC, fuse, mini-relay, per-station TVS.|
|Maximum # of Zones||No software limit|
|Max. Current Per Zone||800mA continuous (@24VAC), 8A impulse / inrush|
|Package Inclues||One assembled and tested OSPi board, separation pillars, terminal blocks, 8-pin and 3-pin cables, and product case. (===DOES NOT=== include 24V AC sprinkler transformer or valves, which are available at Amazon.com or local home improvement stores). (===DOES NOT=== include Raspberry Pi).|
|Dimension and Weight|
|Size||135mm x 85mm x 42mm (5.3" x 3.3" x 1.65")|