Subject:
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Re: Sonar and the handyboard
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 21 Mar 1997 18:01:38 GMT
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Original-From:
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Adam <adam@ringAVOIDSPAM.zenox.com>
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Viewed:
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4356 times
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Tom,
You mentioned that the INIT has the 330ohm. I'm pretty
sure it's the BINH and NOT the INIT that should have the 330ohm.
Reread Kents documentation. I don't think you would have damaged
the unit in this short of time.
Like I've mentioned on many occasions. I STRONGLY think that
the developers of the ranging unit socketed that silly chip
'cause they knew it was prone to failure.
Is your source of the board close?....
----------------------------------------------------------
Adam B. Cox check out my web page
Computer Engineer http://www.zenox.com/~adam
Zenox Communications Corp. vmail: 416-241-7000 (x224)
----------------------------------------------------------
On Fri, 21 Mar 1997, Tom Brusehaver wrote:
>
> Thanks, I followed Chuck M's advice, and disconnected the BINH, and
> the thing words, with 23" as the minimum distance.
>
> > ...
> > socketed chip on the PCB. I would suspect that this chip
> > is suspect to failure.
>
> I would have to possibly agree. I noticed in your earlier mail you
> have suggested putting a 330 ohm resistor between INIT and the handy
> board, but not between BINH. I found nothing in the docs that would
> suggest that this was a good idea, or required. Might it be a good
> idea to put one on BINH also?
>
> > Anyways, in order to solve your problem, I would suggest
> > ...
> > It's a tough to correspond with you on this kind of problem
> > through email. The sonar system is complex in its operation.
>
> I'd have to agree.
>
> > You might want to get a hold of Polaroid and ask for some
> > assistance from an Applications Engineer. These guy are good
> > with these kinds of problems.
>
> That might be a good idea, do you know if the chips can be purchased
> separatly ?
>
> Thanks
>
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Message has 1 Reply:
 | | Re: Sonar and the handyboard
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| (...) I wouldn't think so. I am looking in Kents documentation, and sure enough, there is something about putting a resistor on BINH. Also something about putting a cap in C7 on the ranging board. I'll play with things tonight. (...) Good thinking (...) (30 years ago, 21-Mar-97, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Re: Sonar and the handyboard
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| Thanks, I followed Chuck M's advice, and disconnected the BINH, and the thing words, with 23" as the minimum distance. (...) I would have to possibly agree. I noticed in your earlier mail you have suggested putting a 330 ohm resistor between INIT (...) (30 years ago, 21-Mar-97, to lugnet.robotics.handyboard)
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