The Quintessential Sentry Gun

mollyhackit writes "Aaron and Ezra built an automatic sentry gun using an airsoft gun, some hobby servos and a webcam.The camera automatically identifies and tracks targets. They tested it on each other to make sure it worked; video included!"

Comments

Re:Cubicle Defense Mechanism

[BrynM]

Thinkgeek offers one that shoots foam discs.

(homer)
mmmmmm.... toys
mmmmmmmmm.... linky...
(/homer)

CTRL-H Defined

[WidescreenFreak]

CTRL-H is the UNIX-standard control code for a backspace. It's used in this case for humorous effect or sarcasm.

Example: He is stupid^H^H^H^H^H^Hcool --> "He is cool", but that's not what you originally typed, hence the humor or sarcasm.

UNIX 101 is over for today. Class dismissed.

Re:CTRL-H Defined

[StikyPad]

Right, but the "joke" originates from actual incidents of old terminal programs storing the ^H rather than erasing the previous character. Occasionally, BBSes would have backspace set to something other than ^H. When someone would post a message, and they sent the ^H sig, their own terminals echoed a backspace, but the remote BBS simply logged the ^H as part of their post.

Re:Cubicle Defense Mechanism

[jonfelder]

I bought the one on Thinkgeek. As someone else mentioned, it doesn't track. It's still cool, but has a big problem. The flicker of flourescent lighting triggers the motion sensor on it.

Makes it kind of lame in an office environment.

Re:Little brothers ARE good for something!

[Kyaphas]

It's an airsoft gun. The bb's are 6mm plastic. Much less inertia and penetration capability. Not that he doesn't still need a mask, but they're not as powerful as your run-of-the-mill 4.5mm steel bb's.