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I am studying greenhouse design and operation. Part of the task involves automation. Commercially available drip irrigation systems and timers seem adequate to the task, but I am currently looking for ways to automate the opening and closing of vents and the cycling of fans. I could get contact closures from the irrigation system outputs but need the actuators, or the parts to build them. Left to my own devices they might literally be my own devices. I would have fun designing and building them but it could seriously delay the projects.

"It is not necessary to have hope in order to persevere."
by ARGeezer (ARGeezer a in a circle eurotrib daught com) on Sun Mar 4th, 2012 at 03:56:48 PM EST

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