Tim Kerby <PICLIST@MITVMA.MIT.EDU> wrote:

> I am interested in building a very small light weight rocket speed,
> altitude and acceleration datalogger.  It must also be cheap.  I am
> looking for sensors and fast logging code for about a 20 second
> period.  I would like to be able to serially dock this to an lcd
> module and display results on site, even storing them on it so a few
> launches could be compared and then have an rs232 download to a pc.
> Has anyone ever attempted a similar circuit or have any data?

Tim:

Call Scott Bartel at Delta-V Rocketry; they make something called the
ALTAC, which not only logs acceleration and pressure, but also
controls chute deployment.  It's designed for high-power rockets,
not the little Estes jobs, but it does everything you want and
Scott's working on a new version for small rockets.

Its data is much more accurate than the other systems on the market,
and the PC-based data-analysis software that he bundles with it is
excellent.

Delta-V Rocketry's at 619 730-3701.  Tell Scott that I sent you.

-Andy

=== Andrew Warren - fastfwd@ix.netcom.com                 ===
=== Fast Forward Engineering - Vista, California          ===
===                                                       ===
=== Custodian of the PICLIST Fund -- For more info, see:  ===
=== http://www.geocities.com/SiliconValley/2499/fund.html ===