Comments on: Computer controlled lawn defender

By: polera mopeddelar

polera mopeddelar — Tue, 16 Oct 2007 14:07:26 +0000

woha.. great page – robots are cool!

thanks :)

By: Old Jimmy Wilson

Old Jimmy Wilson — Tue, 16 Oct 2007 01:23:57 +0000

WaterHobo won the monthly project submission contest at TrossenRobotics.com. Tons of cool DIY stuff there.

By: SEO guide

SEO guide — Mon, 15 Oct 2007 22:04:33 +0000

LOL! somebody got real tired of kids using the front lawn.. hehehe

By: dokein

dokein — Mon, 15 Oct 2007 21:21:16 +0000

I definitely need something similar to keep my neighbor’s dogs quiet. He’s got 4 shelties that bark at ANYTHING, but they always shut up when they’re sprayed with a hose…. So instead of an IR camera, I just need to set up two mics on the fence, triangulate the location of the offending pooch, point and spray.

By: Weirdguy

Weirdguy — Sun, 14 Oct 2007 04:58:43 +0000

I like it. Yeah, it could be much better, but it seems to work. What it really needs is some kind of green visible laser, and then it tracks targets with that for about 1 second, just for effect ;)

By: pepethekingprawn

pepethekingprawn — Sun, 14 Oct 2007 02:19:14 +0000

pretty lame. check this one out:
http://www.youtube.com/watch?v=gdYc86AA8M0

By: Wolf

Wolf — Sun, 14 Oct 2007 00:39:53 +0000

nice, but unless he impliments targeting for the water stream, this could be done with a much simpler (and cheaper) setup.

By: Izzy84075

Izzy84075 — Sat, 13 Oct 2007 21:32:48 +0000

sgt pyroman: The mailman normally comes around at about the same time every day. Figure out when he normally comes around and set a 1-hour safe window.

Or, if it's early morning, set a switch to detect when the mailbox has been opened, then have it turn itself on a few minutes later.

Or, just leave it on. Might cut down on the bills you receive... >_>

By: Sgt Pyroman

Sgt Pyroman — Sat, 13 Oct 2007 20:41:50 +0000

What about the friendly postman?

He won’t be very friendly anymore if you get all of his letters wet…

:-(

By: 23r0c001

23r0c001 — Sat, 13 Oct 2007 18:38:03 +0000

Your comments: Hahaha… that’s perfect! I should make one for my front porch. That’s way better than a doorbell, and just in time for halloween. A little red dye, and you have the scary blood shooting house on the end of the block!

(btw, there’s an extra span tag in there making it gray starting with his last name)

By: ryan

ryan — Sat, 13 Oct 2007 15:24:34 +0000

I’m with smilr, seem a bit over engineered for what a simple motion sensor could do (plus a add camera for watching latter). Now if it tracked “targets” keeping the stream on them, maybe even tracking multiple targets with more than one sprayer – that would be damned cool.

By: The Deerslayer

The Deerslayer — Sat, 13 Oct 2007 10:33:05 +0000

Tune it for deer and gardeners will make you a millionaire.

By: smilr

smilr — Sat, 13 Oct 2007 10:26:07 +0000

Now the neighbor needs to ask him to build a second of these to put on the other side – full coverage of the grass between the houses = no more kid problems.

Although if it was me I’d got with a standard PIR detector operating the camera record / sprinkler solenoids. Then I’d install some actual under-ground fast starting sprinkler heads in the center of the path. – Adjust their spray arc to hit about waist high on an adult and _thoroughly_ soak trespassers.

Hide a switch or keypad nearby on either end of the grass to enable a 20 second “safe window” for when I need to walk through unsprayed and we’d be all set.