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Discussion Groups | BasicX | need some ideas

Discussion forum for the BasicX family of microcontroller chips.

need some ideas - Wolfe Digital Systems, Inc. - Sep 14 10:25:00 2002


Hey,

Anyone have any suggestions for the following:

I am building an autonomouse aircraft for a school project; I need pitch and roll sensors. Any suggestions? (would like something to give me either analog (degrees) or words if they exist)

Timber
[Non-text portions of this message have been removed]




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Re: need some ideas - Frank Manning - Sep 14 12:19:00 2002

From: "Wolfe Digital Systems, Inc." <>

> I am building an autonomouse aircraft for a school project;
> I need pitch and roll sensors. Any suggestions? (would
> like something to give me either analog (degrees) or words
> if they exist)

For an artificial horizon function, I'd guess you need at least a
2 axis gyro, plus a 2 axis accelerometer to remove drift.
Depending on how much money you want to spend, you could use
Murata or Tokin or similar gyros for relatively low cost systems.
Probably an ADXL202 would work for the accelerometers -- check out
the BasicX app notes for information.

Or if you have lots of money, check out these off-the-shelf
systems:

http://www.xbow.com/Products/Inertial_Systems.htm

-- Frank Manning
-- NetMedia, Inc.




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Re: need some ideas - Mike Donovan - Sep 14 12:48:00 2002

It's not a gyro, but senses the horizon and keeps the airplane level.

http://www2.omnimodels.com/cgi-bin/woi0001p.pgm?Q=1&I=FUTM0999&P=O

Mike Donovan
----- Original Message -----
From: "Frank Manning" <>
To: <>
Sent: Saturday, September 14, 2002 12:19 PM
Subject: Re: [BasicX] need some ideas > From: "Wolfe Digital Systems, Inc." <>
>
> > I am building an autonomouse aircraft for a school project;
> > I need pitch and roll sensors. Any suggestions? (would
> > like something to give me either analog (degrees) or words
> > if they exist)
>
> For an artificial horizon function, I'd guess you need at least a
> 2 axis gyro, plus a 2 axis accelerometer to remove drift.
> Depending on how much money you want to spend, you could use
> Murata or Tokin or similar gyros for relatively low cost systems.
> Probably an ADXL202 would work for the accelerometers -- check out
> the BasicX app notes for information.
>
> Or if you have lots of money, check out these off-the-shelf
> systems:
>
> http://www.xbow.com/Products/Inertial_Systems.htm
>
> -- Frank Manning
> -- NetMedia, Inc.




(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

RE: need some ideas - Les Dittert - Sep 14 14:35:00 2002

I assume you have searched the net for systems that are low cost < $1200
and are sold. They have tech info on how they work, too.
hint: there are two popular systems out there.

There is also this optical system, about $120
https://www.fmadirect.com/site/fma.htm?body=Products&cat=20

It is better than the futaba. Not as easily 'fooled' by lighting
conditions. It looks at IR. supposed to work at night too.

-Les
-----Original Message-----
From: Mike Donovan [mailto:]
Sent: Saturday, September 14, 2002 10:49 AM
To:
Subject: Re: [BasicX] need some ideas It's not a gyro, but senses the horizon and keeps the airplane level.

http://www2.omnimodels.com/cgi-bin/woi0001p.pgm?Q=1&I=FUTM0999&P=O

Mike Donovan
----- Original Message -----
From: "Frank Manning" <>
To: <>
Sent: Saturday, September 14, 2002 12:19 PM
Subject: Re: [BasicX] need some ideas > From: "Wolfe Digital Systems, Inc." <>
>
> > I am building an autonomouse aircraft for a school project; I need
> > pitch and roll sensors. Any suggestions? (would like something to
> > give me either analog (degrees) or words if they exist)
>
> For an artificial horizon function, I'd guess you need at least a 2
> axis gyro, plus a 2 axis accelerometer to remove drift. Depending on
> how much money you want to spend, you could use Murata or Tokin or
> similar gyros for relatively low cost systems. Probably an ADXL202
> would work for the accelerometers -- check out the BasicX app notes
> for information.
>
> Or if you have lots of money, check out these off-the-shelf
> systems:
>
> http://www.xbow.com/Products/Inertial_Systems.htm
>
> -- Frank Manning
> -- NetMedia, Inc.




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Re: need some ideas - Mark Newell - Sep 14 18:56:00 2002

Timber,

The Tonkin CG-16D might work(about $30-40??). Just
serach on the two words and you will find information

Mark
--- "Wolfe Digital Systems, Inc."
<> wrote:
>
> Hey,
>
> Anyone have any suggestions for the following:
>
> I am building an autonomouse aircraft for a school
> project; I need pitch and roll sensors. Any
> suggestions? (would like something to give me either
> analog (degrees) or words if they exist)
>
> Timber >
> [Non-text portions of this message have been
> removed]

__________________________________________________
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

RE: need some ideas - Les Dittert - Sep 14 20:36:00 2002

I goggle searched for Tonkin CG-16D , and it found nothing.

-Les -----Original Message-----
From: Mark Newell [mailto:]
Sent: Saturday, September 14, 2002 4:57 PM
To:
Subject: Re: [BasicX] need some ideas Timber,

The Tonkin CG-16D might work(about $30-40??). Just
serach on the two words and you will find information

Mark
--- "Wolfe Digital Systems, Inc."
<> wrote:
>
> Hey,
>
> Anyone have any suggestions for the following:
>
> I am building an autonomouse aircraft for a school
> project; I need pitch and roll sensors. Any
> suggestions? (would like something to give me either
> analog (degrees) or words if they exist)
>
> Timber >
> [Non-text portions of this message have been
> removed]

__________________________________________________




(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

Re: need some ideas - Bruce J. Weimer, MD - Sep 14 21:32:00 2002

Hi!

I built an autonomous Roswell / DraganFlyer type helicopter using a relatively inexpensive 2 axis fluid filled electrolytic tilt sensor:

www.rctoys.com/draganflyer3.php

www.sensorsmag.com/articles/0500/120/main.shtml

www.spectronsensors.com

Because I used a BX24 as the "brains", I refer to this class of helicopter as a "BXFlyer". And, if you appreciate subtle humor, I named my helicopter "Nisus".

However, if you want to build your own IMU, I'd suggest a Tokin or Murata rate gyro paired with an ADXL202 - one pair for each axis that you plan to control. Unfortunately, this is an order of magnitude or more more difficult:

www.nec-tokinamerica.com/newproducts.html

http://products.analog.com/products/info.asp?product=ADXL202

http://user.cs.tu-berlin.de/~remuss/marvin.html

Or, as Frank suggested, you could shell out the money to buy an IMU "off the shelf". Taking into consideration the time that'll save you "reinventing the wheel", it could be well worth the expense!

www.xbow.com

Anyway, good luck with your project!!

Bruce.
Sent: Saturday, September 14, 2002 8:25 AM
Subject: [BasicX] need some ideas
Hey,

Anyone have any suggestions for the following:

I am building an autonomouse aircraft for a school project; I need pitch and roll sensors. Any suggestions? (would like something to give me either analog (degrees) or words if they exist)

Timber
[Non-text portions of this message have been removed]




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RE: need some ideas - Tony Brenke - Sep 14 23:20:00 2002

http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=CG-16D+&btnG=Google+Search

--- Les Dittert <> wrote:
> I goggle searched for Tonkin CG-16D , and it found nothing.
>
> -Les > -----Original Message-----
> From: Mark Newell [mailto:]
> Sent: Saturday, September 14, 2002 4:57 PM
> To:
> Subject: Re: [BasicX] need some ideas > Timber,
>
> The Tonkin CG-16D might work(about $30-40??). Just
> serach on the two words and you will find information
>
> Mark
> --- "Wolfe Digital Systems, Inc."
> <> wrote:
> >
> > Hey,
> >
> > Anyone have any suggestions for the following:
> >
> > I am building an autonomouse aircraft for a school
> > project; I need pitch and roll sensors. Any
> > suggestions? (would like something to give me either
> > analog (degrees) or words if they exist)
> >
> > Timber
> >
> >
> >
> > [Non-text portions of this message have been
> > removed]
> >
> > __________________________________________________ >
>
> >
>

__________________________________________________



______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

need some ideas - Wolfe Digital Systems, Inc. - Sep 14 23:29:00 2002

try just searching for cg-16d (I have quite a few results on this search)

AND THANKS GUYS ! have some great info ... preciate all of the prompt and excellent suggestions.

Timber

----- Original Message -----
From: Tony Brenke
To:
Sent: Saturday, September 14, 2002 11:20 PM
Subject: RE: [BasicX] need some ideas http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=CG-16D+&btnG=Google+Search

--- Les Dittert <> wrote:
> I goggle searched for Tonkin CG-16D , and it found nothing.
>
> -Les > -----Original Message-----
> From: Mark Newell [mailto:]
> Sent: Saturday, September 14, 2002 4:57 PM
> To:
> Subject: Re: [BasicX] need some ideas > Timber,
>
> The Tonkin CG-16D might work(about $30-40??). Just
> serach on the two words and you will find information
>
> Mark
> --- "Wolfe Digital Systems, Inc."
> <> wrote:
> >
> > Hey,
> >
> > Anyone have any suggestions for the following:
> >
> > I am building an autonomouse aircraft for a school
> > project; I need pitch and roll sensors. Any
> > suggestions? (would like something to give me either
> > analog (degrees) or words if they exist)
> >
> > Timber
> >
> >
> >
> > [Non-text portions of this message have been
> > removed]
> >
> > __________________________________________________ >
>
> >
>

__________________________________________________

Yahoo! Groups Sponsor
ADVERTISEMENT

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Non-text portions of this message have been removed]




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Re: need some ideas - Mark Newell - Sep 16 1:24:00 2002

Timber,
As you all ready know I finger checked the company
name.

Sorry, Mark
--- "Wolfe Digital Systems, Inc."
<> wrote:
> try just searching for cg-16d (I have quite a few
> results on this search)
>
> AND THANKS GUYS ! have some great info ... preciate
> all of the prompt and excellent suggestions.
>
> Timber
>
> ----- Original Message -----
> From: Tony Brenke
> To:
> Sent: Saturday, September 14, 2002 11:20 PM
> Subject: RE: [BasicX] need some ideas >
http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=CG-16D+&btnG=Google+Search
>
> --- Les Dittert <> wrote:
> > I goggle searched for Tonkin CG-16D , and it found
> nothing.
> >
> > -Les
> >
> >
> > -----Original Message-----
> > From: Mark Newell [mailto:]
> > Sent: Saturday, September 14, 2002 4:57 PM
> > To:
> > Subject: Re: [BasicX] need some ideas
> >
> >
> > Timber,
> >
> > The Tonkin CG-16D might work(about $30-40??). Just
> > serach on the two words and you will find
> information
> >
> > Mark
> > --- "Wolfe Digital Systems, Inc."
> > <> wrote:
> > >
> > > Hey,
> > >
> > > Anyone have any suggestions for the following:
> > >
> > > I am building an autonomouse aircraft for a
> school
> > > project; I need pitch and roll sensors. Any
> > > suggestions? (would like something to give me
> either
> > > analog (degrees) or words if they exist)
> > >
> > > Timber
> > >
> > >
> > >
> > > [Non-text portions of this message have been
> > > removed]
> > >
> > >
> >
> >
> > __________________________________________________
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > __________________________________________________
>
> Yahoo! Groups Sponsor
> ADVERTISEMENT >
>
> Your use of Yahoo! Groups is subject to the Yahoo!
> Terms of Service. >
> [Non-text portions of this message have been
> removed]

__________________________________________________





(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

Re: need some ideas(autonomous helicopter) - Mark Newell - Sep 16 1:51:00 2002

Hi,

If one is looking for a source to build and fully
understand "fully autonomus" helicopter flight check
out:

http://autopilot.sourceforge.net/

What they are doing and making available as an "Open
System" (free code) is outstanding. Here are some of
tech. they are using: gyro's; accelermeters; analog
filters; compass; GPS; Kalman filters; PID algorithms;
IMU; INS; and AHRS; etc..

Their archive list can be found from that page. There
are some true experts in thier fields on that list!
They are using an AVR processor for data collection
and servo control but not what the BX24 is based on.

I started to try and do what DR. Weimer did, but once
I found the group. I slowed down a bit.

Mark
--- "Bruce J. Weimer, MD" <>
wrote:
> Hi!
>
> I built an autonomous Roswell / DraganFlyer type
> helicopter using a relatively inexpensive 2 axis
> fluid filled electrolytic tilt sensor:
>
> www.rctoys.com/draganflyer3.php
>
> www.sensorsmag.com/articles/0500/120/main.shtml
>
> www.spectronsensors.com
>
> Because I used a BX24 as the "brains", I refer to
> this class of helicopter as a "BXFlyer". And, if
> you appreciate subtle humor, I named my helicopter
> "Nisus".
>
> However, if you want to build your own IMU, I'd
> suggest a Tokin or Murata rate gyro paired with an
> ADXL202 - one pair for each axis that you plan to
> control. Unfortunately, this is an order of
> magnitude or more more difficult:
>
> www.nec-tokinamerica.com/newproducts.html http://products.analog.com/products/info.asp?product=ADXL202
>
> http://user.cs.tu-berlin.de/~remuss/marvin.html
>
> Or, as Frank suggested, you could shell out the
> money to buy an IMU "off the shelf". Taking into
> consideration the time that'll save you "reinventing
> the wheel", it could be well worth the expense!
>
> www.xbow.com
>
> Anyway, good luck with your project!!
>
> Bruce. >
> Sent: Saturday, September 14, 2002 8:25 AM
> Subject: [BasicX] need some ideas >
> Hey,
>
> Anyone have any suggestions for the following:
>
> I am building an autonomouse aircraft for a school
> project; I need pitch and roll sensors. Any
> suggestions? (would like something to give me either
> analog (degrees) or words if they exist)
>
> Timber >
> [Non-text portions of this message have been
> removed]

__________________________________________________





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