Subject:
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Re: light sensor problem?
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Mon, 24 Jul 2000 00:34:41 GMT
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Viewed:
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5203 times
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On Mon, 24 Jul 2000, Eddie C. Dost wrote:
> > I've not fixed the scaling factor, because I can't figure why Markus used
> > these lines to define upper and lower limits for raw readings... I've also
> > asked for it but I got no reply as usual nowadays...
> >
> > Please, feel free to change, or investigate these values to fix light
> > reading...
>
> To achive scaling of light sensor reading from 0..100 the following
> theoretical formula should be used:
>
> light = 146 - scaled / 7,
>
> where scaled is the reading of AD_X >> 6.
It doesn't surprise me that someone has already worked this out.
> I found this at http://www.plazaearth.com/usr/gasperi/lego.htm, this
> page contains a lot of electrical background.
It really, really doesn't surprise me that Michael was the one who worked
it out. If no one thinks it is too big an overhead, I can put it in in an
hour or so when I do a CVS checkin to modify dsound.h.
Luis
P.S. In case anyone cares, the modifications to dsound.h will basically
just be a little patch to allow you to use WHOLE, HALF, etc. to describe
note lengths instead of multiples of 16ths. Just some #defines, but they
make it much easier to transcribe "real" music into legOS-ese.
-----------------------------------------------------------------------
"Summertime... and the living is easy...
fish are jumping and the cotton is high...
So hush, little baby, baby don't you cry."
-Ella
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Message has 1 Reply:
 | | dsound
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| Hi Luis, (...) I wonder if it would be interesting to include a small utility I wrote assisted by a friend of mine (Paolo Masetti) to convert MIDI files into LegOs C code: since then all of our robots are equipped with a subroutine generated by this (...) (26 years ago, 24-Jul-00, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | Re: light sensor problem?
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| (...) To achive scaling of light sensor reading from 0..100 the following theoretical formula should be used: light = 146 - scaled / 7, where scaled is the reading of AD_X >> 6. I found this at (URL) this page contains a lot of electrical (...) (26 years ago, 24-Jul-00, to lugnet.robotics.rcx.legos)
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