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DPRG: pics of sonar board
Subject: DPRG: pics of sonar board
From: Daniel Herrington
daniel at adc.nsc.com
Date: Sat May 2 09:58:16 CDT 1998
Randy,
Yes, I plan on selling them. It will probably be a few months, after
I get the necessary collateral in place, e.g.: user's guide & app
notes, new layout with SMT microcontroller, professionally fabbed
boards, characterization across several finished boards, etc. I'll
post any updates on my progress to the dprglist. I don't have a
definite price figured out yet, either. I'll let you know.
Regards,
Daniel
=> Replying to Randy Carter's message, "Re: DPRG: pics of sonar board" (May 2):
> Very nice. Are you selling these boards? If so, how much? What king
> of short range performance do they have. I live in Seattle WA so I have
> not seen any demonstrations of this sonar system.
>
> Daniel Herrington wrote:
> >
> > Okay, I promised some pictures of my sonar board. Here they are:
> >
> > Wire-wrapped prototype:
> > http://www.flash.net/~daniel/sonoldfront.jpg
> >
> > SMT etched board (front):
> > http://www.flash.net/~daniel/sonnewfront.jpg
> >
> > SMT etched board (back):
> > http://www.flash.net/~daniel/sonnewback.jpg
> >
> > SMT etched board with ruler to show size:
> > http://www.flash.net/~daniel/sonruler.jpg
> >
> > Regards,
> > Daniel
> >
> > P.S. Probably sometime next week I'll post the specs -- range, power,
> > cost, etc. (...after I finish a research paper for my Master's degree
> > at UTA.) I can tell you I've tweaked the mcu software to allow an
> > accurate range measurement down to 3". Pulses are once every ~38ms.
> > I plan on adding capability to work as master/slave/single, and one of
> > these modes would allow the robot's main controller to tell the module
> > when to do a sonar pulse/reading (to save power).
> >
> > Regards,
> > Daniel Herrington
>
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