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 22:54:49 GMT
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Original-From:
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Fred G. Martin <FREDM@MEDIAstopspam.MIT.EDU>
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Viewed:
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1044 times
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did you put the capacitor c7 (0.1uf) in the sonar board, as indicated
in the directions? if not, plesae do so and let me know if this
solves your problem.
fred
In your message you said:
> 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 is in Reply To:
 | | RE: Handyboard Expansion Sonar Issues
|
| 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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