Subject:
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Re: GBC at BrickFest 2006
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 6 Sep 2006 19:04:43 GMT
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Viewed:
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4249 times
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In lugnet.robotics, Rafe Donahue wrote:
> > detecting the ball itself via reflected light
> > is a tougher issue...
>
> I had success with a ball detector using only one light sensor...
> Across from the light sensor, two studs away, was a silver brick,
Now that is a nice solution, and not one I'd thought of. Not having the silver
brick, I could still use a (non-LEGO! Aaah!) solution of a small pice of
reflective tabe or something. Cool.
> Did anyone else have anything walk off under its own power?
I know that there's one power transformer that is missing (Jean-Mark's, pardon
my spelling because I'm certain that's wrong), so if anybody sees that turn up,
let me (or him) know. I've not seen your little bit unfortunately, but I think I
ended up with Steve Hassenplug's brick seperator. Although I confess I've yet to
unpack comepltely as yet, so for all I know *I* may still have some of these
items.
Oh, and I think I have some extra soccer balls... actually, I'm *certain* I have
some extra soccer balls :-).
--
Brian Davis
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Message has 2 Replies:
 | | Re: GBC at BrickFest 2006
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| (...) I found a yellow LEGO rubber band on the TECHNIC table, so I took it home with me since most everyone was gone by that point. That's probably not a big deal, unlike an entire train regulator. :( (18 years ago, 6-Sep-06, to lugnet.robotics)
| | | Re: GBC at BrickFest 2006
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| (...) There are actually three ways to approach this: 1) Using something reflective on the far side of the ball chute - have the sensors light bounce back into the sensor - so the reading decreases when something gets in the way of the reflected (...) (18 years ago, 6-Sep-06, to lugnet.robotics)
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Message is in Reply To:
| | Re: GBC at BrickFest 2006
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| (...) I had success with a ball detector using only one light sensor in my little interactive get-the-ball-in-the-hole module. If the ball went into the hole, it rolled past a light sensor (old RCX version; is there a new nxt one?). Across from the (...) (18 years ago, 6-Sep-06, to lugnet.robotics)
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