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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Mon, 2 Mar 1998 15:15:51 GMT
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Original-From:
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Bill James <W-JAMES2@TI.COMspamless>
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Viewed:
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1450 times
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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
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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
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> 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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Message has 1 Reply:
 | | Re: V2X Compass
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| (...) We used the V2X and, due to space considerations on our test platform, placed the compass within 4 inches of the DC motors driving the vehicle. We had no noteworthy error that we could attribute to magnetic coupling. -d The Fourth Law of (...) (27 years ago, 6-Mar-98, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Re: V2X Compass
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| 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 (...) (27 years ago, 28-Feb-98, to lugnet.robotics.handyboard)
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