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[DPRG] Self Balancing.

Subject: [DPRG] Self Balancing.
From: Ted Larson ted at larsonland.com
Date: Mon Oct 17 13:30:19 CDT 2005

I own a CRS03 gyro, I bought for testing purposes.  Just to compare it to
what I already had.  It is a very low-noise device, and doesn't require any
amplification, nor external noise filters.  It doesn't have temperature
drift issues, like many of the low-cost devices.  It works very well.  We
used it on a large balancing robot we built, and it worked great.  A friend
of mine also used one of them in version 2 of his DIY segway project, and I
know he has been quite pleased with it.  I hadn't heard about this device,
before he mentioned it.


You can get them from the Newark catalog.  They are pricey though...$299.

Since I have been doing filters and such with the low-cost devices, I didn't
find it to perform any better than what I already had, so it wasn't really
worth all that extra dough.

As far as accelerometers go.....I am a big proponent of these guys.  They
are cheaper than AD units, and they don't require any external parts to
operate..i.e. amplifiers, or filters.


Hope this helps,


-----Original Message-----
From: dprglist-bounces at dprg.org [mailto:dprglist-bounces at dprg.org] On Behalf
Of Tadej Milharcic
Sent: Monday, October 17, 2005 1:48 AM
To: dprglist at dprg.org
Subject: [DPRG] Self Balancing.


I am building a self-balancing robot and I found your project for a
Low Cost Gyro-Accelerometer Combo Sensor on the web
(http://www.dprg.org/projects/2003-01a/). It realy seams a reasonable
option to me (my budget is quite limited) and I am considering to
build one for my project. On other sites I noticed that people use
many diferent types of gyros for such purposes, but the Silicon
Sensing CRS03 is probably used more than others (while the
accelerometers used are almost always from Analog Devices). Have you
ever checked that product? Does your Gyro board match the CRS03 in
terms of performance?

The thing is, that I have absolutely no experience in soldering and I
would probably need some help from someone who does. This is a little
impractical for me. Does Analog Devices have a complete packaged
solution yet (in your article you talk about a possible such product
in the future)?

Best regards, Tadej.

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