This is the site where
<a href="http://www.gag.com/~bdale">Bdale Garbee </a>
-and friends document work on a series of open hardware and software designs of avionics solutions for high
-powered model rocketry. Please consider everything here work perpetually
-in process!
+and friends document work on open hardware and software designs for
+high powered model rocketry avionics solutions.
+Please consider everything here work perpetually in process!
<p>
All hardware designs on this site are licensed under the
[TAPR](http://www.tapr.org/)
[General Public License, version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
or compatible licenses.
-# Projects #
+# Hobby Rocketry #
-* [TeleMetrum](TeleMetrum/)
- is our latest project, a rocketry altimeter with RF telemetry link.
+The motivation for the circuits and software you will find on this site is
+our loosely-knit group's shared interest in hobby rocketry.
+Rather than try to introduce the hobby to you here, we note that John Coker
+has published an excellent
+[overview of hobby rocketry](http://www.jcrocket.com/welcome.shtml)
+on his web site.
+<p>
+To find more information about the rockets Bdale and his son have built, see
+[Garbee Rockets](http://www.gag.com/rockets).
+<p>
+As Bdale and Robert became more experienced in the hobby and started to build
+and fly more sophisticated projects, we started to feel limited by the
+existing electronics products available. AltusMetrum was Bdale's first
+attempt to address this situation with a completely open hardware and software
+design... other project have since followed!
+
+# Projects #
* [AltusMetrum](AltusMetrum/)
- was our original project, a rocketry altimeter.
+was our original project, a dual-deploy rocketry altimeter. One prototype was
+built, but never flown. This project is now indefinitely on hold.
+
+* [TeleMetrum](TeleMetrum/)
+is our current project, a dual-deploy rocketry altimeter with improved sensor
+complement and bidirectional RF telemetry link.
<hr>