Subject:
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Re: V2X Compass
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 3 Mar 1998 13:56:55 GMT
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Original-From:
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669@WORLDNET.ATTspamcake.NET
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Reply-To:
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<{669@worldnet.att.net}NoMoreSpam{}>
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Viewed:
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1397 times
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Bill,
I have not been able to try that with the v2x onboard the bot so far, every
time I try to load anything while the v2x is running my handyboard wants to
crash.
Someone out there must have a code that they would be willing to share with
some of us less experienced IC furture code writers.
I plan to mount the v2x as far from the motors as possible even if it means
mounting on some type of mast and trying to shield it someway. I'll let you
know how it turns out when I get a workable code loaded.
Terry P. Gathright
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> From: Bill James <w-james2@ti.com>
> To: 669@worldnet.att.net; 'Handyboard Mailing List'
<handyboard@media.mit.edu>; John Hatton <JohnHa@icsplc.co.uk>; 'RobotBoard
Mailing list' <robot-board@cmf.nrl.navy.mil>
> Subject: Re: V2X Compass
> Date: Monday, March 02, 1998 9:15 AM
>
> I have a question for you, how much does the compass deviate when the • motors
> turn on. As an ex-sailor, one of the major consideration in using • magnetic
> compasses is deviation, and on a small bot, the deviation would vary due • to the
> changing electromagnetic fields. So have you turned on the compass, and • watched
> to see if the reading varyied if the motors turn on and off?
>
> Just wanted to know.
> Thanks
>
> Bill James | work: 972.480.2306
> Product Test Specialist | Pager: 972.597.6201
> w-james2@ti.com
> Precision Analog & Interface Department
>
> Polymath in Training | Have Spacesuit will Travel
>
> ------------------
> Original text
>
> From: 669@worldnet.att.net, on 2/28/98 11:17 AM:
> John,
> My v2x has these numbers on the cpu 6448
> PN11096
> V2XC JJJ
> I have a handyboard , a v2x compass and small robot platform with left • and
> right steering motors. Everything works, I can run the motors,load
> compass.icb and compass.c and the lcd will print the heading constantly
> when I type v2x( ); at the command line.
> My problem is lack of knowledge programming. I would like to know if any
> one has a complete program that I could run and learn from.
> Just a program that I could have my robot go one direction for a certain
> number fo wheel rotations or length of time then turn another direction
> ect,ect,ect. I think I could make changes rotations and directions ect. • if
> I had a working program to start with and study.
> Thanks
> Terry P.Gathright
> 669@worldnet.att.net
>
> ----------
> > From: John Hatton <JohnHa@icsplc.co.uk>
> > To: 'Handyboard Mailing List' <handyboard@media.mit.edu>; 'Robot Board • Mailing list' <robot-board@cmf.nrl.navy.mil>
> > Subject: V2X Compass
> > Date: Thursday, February 26, 1998 5:37 AM
> >
> > I have recently obtained a digital compass circuit as part of a clock
> > (it lights an led that points north) but haven't yet tried to interface
> > with it. I think it will be communicating via SPI but I'm not sure.
> >
> > The question I want to ask anybody with a V2X is what cpu does it use • on
> > the board ?.
> >
> > Thank for any help.
> >
> > John Hatton
> >
> > john_hatton@bigfoot.com
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