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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Sun, 7 Feb 1999 21:51:59 GMT
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Original-From:
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Terry P. Gathright <669@WORLDNET.ATT.NETavoidspam>
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Viewed:
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935 times
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Hello All,
Still a little confused about connecting the sonar unit. Can I simply
plug the polaroid connector to the sockets provided ,install the 1.5 wire
to digital 7 , install the cap at C7? or do I have to have the diodes and
connect to the motor port??
Thanks
Terry G.
<The Expansion Board implements the same Polaroid 6500 driver circuit as
previously published. To connect the 6500 board into the Expansion Board,
perform the following steps:>
<1.Install the 9-pin flex cable adapter in the position provided. 2.Solder
a 1.5" length of solid core hookup wire (22 gauge) to the PCB pad labeled
J12, thread it between the digital output and analog input headers, and
plug it into digital input 7 on the main Handy Board. 3.Use the sonar.c
driver provided on the Handy Board sonar web page,>
http://el.www.media.mit.edu/projects/handy-board/software/sonar.html
----------
> From: Nick Taylor <ntaylor@iname.com>
> To: handyboard@media.mit.edu
> Cc: Terry P. Gathright <669@worldnet.att.net>
> Subject: Re: Handyboard Expansion Sonar Issues
> Date: Sunday, February 07, 1999 10:45 AM
>
> Look at these:
> http://el.www.media.mit.edu/projects/handy-board/software/sonar.html
> and
> http://el.www.media.mit.edu/projects/handy-board/hbexp30/software.html
>
> I also added a 100uF cap across the supply as shown in this link:
> http://www.robotics.com/arobot/sonar.html
> Others suggest ana even larger cap. (470uF), but I haven't had any
> problems with power sag until the batteries are almost discharged.
>
> - - - Nick - - -
>
>
>
> "Terry P. Gathright" wrote:
> >
> > Hello,
> > Where do I look for the directions for connecting the Polaroid sonar to • the
> > expansion board.
> >
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