I had a friend who used to use the brute force method to get sales people and religious zealots off his property. He had controls for his pop-up sprinkler system in his house. The moment someone came that should not have been there he would activate his watering system. It was a high-tech watering system, but a low-tech approach to soaking unwanted visitors. Enter the Waterhobo, an electronic solution for obtaining the same effect.

The Waterhobo is a computer controlled hose / water gun with a motion sensor. Trespassers trip the motion detector and Waterhobo gives them a good soaking. It does not really aim at them, rather it sprays back and forth, up and down in the target area. It achieves the desired result and there is an IR camera to record all of the fun. A lot of ingenuity, an old computer and a few parts went into this garden defense system. We are looking forward to seeing version 2.0 when it is ready.  Do check out the website, there are a few videos of the Waterhobo in action.

Source: Tim Higgins via Hack a Day

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