Subject:
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Re: My sonar doesn't work!
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sat, 19 Jun 1999 19:47:17 GMT
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Original-From:
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rmtmd <RMTMD@LVCM.avoidspamCOM>
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Viewed:
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859 times
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Did you install a .1uF capacitor at C7 on the sonar boards? The 6500
doesn't work without that capacitor.
Ross M. Tonkens, M.D.
Medical Director
Primary Care of Nevada
100 North Green Valley Parkway
Suite 240
Henderson, NV 89014
702 914-7120 VOICE
702 914-7129 FAX
KwangJu, Lee KwangJu, Lee
> I'm dealing with 2 sonar 6500 module. Accidently, I found the diodes,
> connected V+ of sonar
module as depicted in "Sonar Drivers for th Handy Board" document, became
> very hot.
Suprised, I turn off the HB power. After, HB doesn't work. So I must
> download PCODE.
Now, HB works well. But sonar, doesn't work. Function sonar_sample( ) and
> sonar_closeup()
always return -1. I've met the same problem before, that time I replaced
> the diodes and it works
again, although I didn't think diodes have had the problem.
This time also I replaced the diodes with another ones, but it doesn't
> work.
How can I make it work again?
Pls somebody help me. Thanks in advance.
Ross Tonkens
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