Subject:
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Re: Contapalle per il GBC
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Newsgroups:
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lugnet.org.it.itlug
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Date:
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Thu, 8 Feb 2007 09:39:13 GMT
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Viewed:
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2477 times
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In lugnet.org.it.itlug, Brian Davis wrote:
> [I apologize for my deplorable ignorance of other languages; I fear I must
> comment in English. I can only blame my educational system and my lack of
> language facility]
>
> There's a number of ways to count the balls that I've seen (mechanical, using a
> light sensor, and in one case timing the whgole loop by using the "steel"
> dragons egg from the Harry Potter set:
>
> http://news.lugnet.com/announce/moc/?n=3731
>
> But I don't think I've seen anything displaying them on the computer (instead of
> the RCX or NXT). Come to think of it, since the NXT can communicate to the PC
> via BT (Bluetooth), it should be possible to have a NXT-based GBC module that
> counts balls, using BT to communicate them to a PC for display. Actually, you
> could also have a NXT-based counter that communicates with a different NXT-based
> switching module, so if a section of the GBC stops working (no balls coming
> through) it signals the upstream switching module to shut down that branch
> automatically. Or "pages" a human who's wearing an NXT on their hip to come and
> fix things, etc.
Hi Brian
Thanks a lot for the tip. Actually I had missed that "magnetic ball" idea, it's
a nice one.
As for using the NXT for counting... well, I guess we don't have enough NXT
units yet to use some in the GBC. I mean that we're going to have a robotics
contest and a robotics show the same day, and most of us prefer to use their
NXTs in those area, running GBC modules on good old RCXs. Anyway, I agree with
you that NXT+BT+PC is a great solution for counting balls and show results on a
big display.
Ciao
Mario
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Message has 1 Reply:
 | | Re: Contapalle per il GBC
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| (...) That I can certainly understand. And I love the idea of a big display for a counting module, I just don't have a computer I can regulate to the task (or the board... that looks like a nice one). We want to add a GBC train video camera to be (...) (17 years ago, 8-Feb-07, to lugnet.org.it.itlug)
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Message is in Reply To:
| | Re: Contapalle per il GBC
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| [I apologize for my deplorable ignorance of other languages; I fear I must comment in English. I can only blame my educational system and my lack of language facility] There's a number of ways to count the balls that I've seen (mechanical, using a (...) (17 years ago, 7-Feb-07, to lugnet.org.it.itlug)
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