http://hackaday.com Fresh hacks every day Sun, 12 Feb 2012 08:27:59 +0000 en hourly 1 http://wordpress.com/ http://1.gravatar.com/blavatar/5560f98f805877b0e332f191cb9e0af3?s=96&d=http%3A%2F%2Fs2.wp.com%2Fi%2Fbuttonw-com.png http://hackaday.com http://hackaday.com/2007/10/12/computer-controlled-lawn-defender/ http://hackaday.com/2007/10/12/computer-controlled-lawn-defender/#comments Sat, 13 Oct 2007 05:18:00 +0000 Will O'Brien http://hackaday.iheartcashews.com:8181/2007/10/12/computer-controlled-lawn-defender/ ]]>
I found this thanks to [Mark Frauenfelder] on BoingBoing. The ‘Waterhobo‘ is a computer controlled sprinkler that fires upon anyone who’s cutting across the owners lawn. The video is pretty amusing. An infrared camera is mounted up top, and the computer measures motion in the image to determine if it should start firing.

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