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Just wondering... in reference to the modification on the Polaroid 6500
sonar ranging board, there's been two different assertions. Should the 0.1uF
cap be of a polarized (e.g. electrolytic, tant, etc.) or non-polarized
variety (as stated below)?... or does it matter?
Thanks,
John
Giang Tran wrote in message
<3.0.1.32.20000124113305.006c67cc@chi.devry.edu>...
The location(C7) for the .1uF that you are refering to is located on the
sonar driver board, on the lower left corner of the ribbon connector. Any
non-polarized cap will do just fine.
>
> At 05:47 PM 1/23/00 GMT, nat amvat wrote:
> > i recently purchased a handy board, an expansion
> > board, and a polaroid 6500 sonar sensor. i installed
> > the expansion board, along with the appropriate
> > libraries. i also plugged the sonar into the expansion
> > board, and used the code for the sonar on the mit
> > handy board/sonar page
> > (http://lcs.www.media.mit.edu/groups/el/projects/handy-board/software/sona • r.html).
> > however, when i run the program, i receive numbers
> > which i am not sure i understand. after i convert the
> > numbers returned from the sonar to approximate
> > distances (feet), i get sequences such as:
> > 1.7
> > -2.4
> > 5.2
> > .5
> > -6.1
> >
> > i don't understand the negative numbers. or the
> > sequences.
> >
> > would this be related to the note on the website about
> > the installing a 0.1 µF capacitor in the C7 position?
> > if so, how does one do that?
> >
> > any help appreciated,
> >
> > nat
> >
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Message has 1 Reply:
 | | Re: sonar
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| (...) I don't think it matters much. I used a 'lytic and it works fine. If you have another kind, it probably wouldn't hurt to give it a try. -- Will +---...---+ | ^^ <^ ^> | | / òó ó°° \ | | / =Y= U \ | | Wendy, Will, Tatoosh & Tenzing | (...) (25 years ago, 17-Mar-00, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Re: sonar
|
| The location(C7) for the .1uF that you are refering to is located on the sonar driver board, on the lower left corner of the ribbon connector. Any non-polarized cap will do just fine. (...) (25 years ago, 24-Jan-00, to lugnet.robotics.handyboard)
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