Subject:
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Re: Handyboard Expansion Sonar Issues
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 5 Feb 1999 13:53:16 GMT
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Original-From:
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jdunn@^SayNoToSpam^unm.edu
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Viewed:
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823 times
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There is a very high probability that you plugged the foil cable in
backwards. Doing so, even for a moment, will destroy the IC chips. It
will still click (I haven't figured that one out yet), but the IC chips and
possibly even the electrolytic capacitors, will need to be replaced before
you will get any reliable output.
The only way I know to check to see if the cable is plugged in correctly or
not, is to use an ohm-meter and check continuity from the pin on the
interface plug to the IC chips. Make sure to check continuity all the way
through, not just to the board.
The instructions for hooking up the foil cable is hard to find, and perhaps
non-existant, our team-mate had no idea what had happened. It took
considerable time before we figured this one out, the clicking is very
deceptive.
James
Stephen Michael wrote:
>
> To anyone who can help:
>
> I'm having Polaroid
> Sonar problems. I got this as a kit from Wirtz Electronics.
> When activated, it appears to function (it repeatedly clicks
> when "sonar_display()" is executed), but returns apparently
> random readings.
>
> Does anyone have any suggestions as to what might be wrong?
>
> Stephen Michael
> sa_michael@hotmail.com
--
James and Roya
jdunn@unm.edu
Chat# 14708321
Like a rose, life is sweet,
with just enough thorns
to make it interesting.
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Message has 1 Reply:
 | | Re: Handyboard Expansion Sonar Issues
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| (...) Please explain. Now I'm worried about damaging my sonar board. Since the foil cable has conductors on only one side, I didn't think that it was possible to plug it in "backwards" and still make an electrical connection. My understanding of the (...) (26 years ago, 5-Feb-99, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | RE: Handyboard Expansion Sonar Issues
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| To anyone who can help: I too have contructed the HB expansion board. All i/o ports appear to work. The servo controllers appear to work well also. However, like Ranjit, I'm having Polaroid Sonar problems. I got this as a kit from Wirtz Electronics. (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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