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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Thu, 4 Feb 1999 19:03:48 GMT
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Original-From:
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Stephen Michael <sa_michael@hotmail.&stopspam&com>
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Viewed:
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735 times
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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.
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
> I assembled the expansion board and tested all I/O ports.
> Everything checks out fine. I have the 6500 sonar module with
> the flex cable. After loading 'sonar.c', I tried the
> 'sonar_display()' function. The transducer came to life with
> its 'clicking', but the LCD displayed a very rapidly fluctuating
> 4 digit random number between 1100-1700. Aiming the transducer
> in various positions has no effect on the numbers.
>
> Any suggestions will be appreciated,
> Ranjit
>
> --
> Ranjit Diol - COMPSys
> Dowagiac,Michigan
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Message has 2 Replies:
 | | Re: Handyboard Expansion Sonar Issues
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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 (...) (26 years ago, 5-Feb-99, to lugnet.robotics.handyboard)
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