Subject:
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Re: Polaroid 6500
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 27 May 1998 14:40:08 GMT
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Original-From:
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Will <willbain@=nospam=cs.umt.edu>
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Viewed:
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1197 times
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jluijk wrote:
<snip>
> I am trying to install the polaroid 6500.
> I use the schematics I found with the sonar.c file at this site.
> It doesn't work, I dont understand the Motor power connection why does
> it have 4 pins ?
The two on the left are + battery voltage and the two on the right are
ground. They're doubled up to handle more current, I guess.
> I think the sonar device doesnt get enough voltage, I only measure
> around 0.5 volts ?
Make sure that you're getting 9.6 V at the motor power header, and that
you have your six diodes (to drop the voltage from 9.6 V down to 6.0 V)
wired up with the correct polarity.
> Does the striped side of the ribbon-cable goes in number 1 of
> the socket on the polaroid board ? (etc. etc.).
The two ribbon cables that I got with my pair of sonar modules had the
stripes wrong (one had the stripe on the pin 1 conductor and the other
on pin 9), so you should check that yours are hooked up correctly
regardless of the stripe. With the cable coming straight up out of the
sonar module, make sure the shape of the plug matches the shape of the
footprint of the board connector J1 (i.e., four pins on the top and five
pins on the bottom, when the board is viewed "right side up" relative to
the printing on it).
Note: I'm not an authority on sonar; I haven't gotten mine to work yet,
either. Good luck.
--Will
, ,
__@_/ \_@__ |/
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)\ ) ( \ (\/\\,
~~~~~~~~~ ' ` ~~~~~~~~~~~ ` ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Wendy Parson, If the world were a logical place,
Will Bain, men would ride sidesaddle.
& Tatoosh --Rita Mae Brown
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Message is in Reply To:
 | | Polaroid 6500
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| Hi, I am trying to install the polaroid 6500. I use the schematics I found with the sonar.c file at this site. It doesn't work, I dont understand the Motor power connection why does it have 4 pins ? One motor only uses 3 pins ? I think the sonar (...) (28 years ago, 26-May-96, to lugnet.robotics.handyboard)
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