+
+
This is the site where
<a href="http://www.gag.com/~bdale">Bdale Garbee </a>
-and friends are documenting work on a
-series of open hardware and software designs of avionics solutions for high
-powered model rocketry. Everything here should be considered a work 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/)
+[Open Hardware License](http://www.tapr.org/ohl.html),
+and all the software is under the
+[GNU](http://www.gnu.org/)
+[General Public License, version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
+or compatible licenses.
-# TeleMetrum
+# [Latest News](News) #
+# Hobby Rocketry #
+
+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. Keith has also put together some useful notes about the
+process of [certification](http://keithp.com/rockets/certification/) to
+fly high power rockets.
<p>
-A quick update as of 16 December 2008.
-The ARM7-based 'AltusMetrum' design has been shelved indefinitely.
-Working with Keith Packard, I recently embarked on a complete redesign based on the TI cc1111.
-We got there by deciding we need a low-power RF beacon for post-landing direction finding, learning
-of the existence of this part, then realizing that we could radically simplify things by using it
-as the basis for a completely new avionics design.
-The cc1111 integrates a full 70cm transceiver, 8051 processing core, and peripherals on one chip.
-We add to that a barometric sensor, temperature sensor, accelerometer, eeprom memory, and full LiPo
-battery support powered by a USB interface also used for configuration and post-flight data extraction.
-It looks like we can get all the features we want on a single board for less than the price of most
-commercial altimeter boards, with the only downside being dramatically reduced processing power.
-We have a complete schematic and a first pass PCB layout that is currently
-under review and improvement prior to sending out for raw boards.
-We hope to be turning on boards and writing firmware over the
-Christmas / New Years holiday season.
-Stay tuned!
-</p>
-<hr>
-# AltusMetrum
+To find more information about the rockets Bdale and his son have built, see
+[Garbee Rockets](http://www.gag.com/rockets).
<p>
-Welcome LCA, SCALE, and OLS 2008 attendees!
-Thanks for looking, but there's not much here yet...
-</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, and it's cool to have help from
+various friends!
-<p>
-Information on the OpenAlt model rocketry avionics system coming very soon!
-</p>
+# Projects #
-<p>
-Here are photos of the version 0.1 PCB, which has enough issues to not be
-worth duplicating. Version 0.2 is coming soon, and will be fully documented
-on this site!
-</p>
+* [TeleMetrum](TeleMetrum/)
+is our current project, a dual-deploy rocketry altimeter with improved sensor
+complement and bidirectional RF telemetry link.
+
+* [AltOS](AltOS/)
+is the name of the firmware and related utilities that Keith maintains for
+the set of hardware projects here.
+
+* [TelePyro](TelePyro/) is a planned 8-channel pyro expansion board for
+[TeleMetrum](TeleMetrum/).
+
+* [TeleTerra](TeleTerra) is a planned hand-held ground station for use with
+[TeleMetrum](TeleMetrum/).
+
+* [AltusMetrum](AltusMetrum/)
+was Bdale's original project here, a dual-deploy rocketry altimeter. One
+prototype was built, but never flown. This project is now indefinitely on hold.
+
+# Participants #
+
+* [Bdale Garbee](http://gag.com/~bdale)
+* [Keith Packard](http://keithp.com/keithp)
+
+# Getting Involved #
+
+If you aren't already playing with model rockets, that's a good place to
+start. Finding a local [NAR Section](http://nar.org/NARsect.html) or
+[Tripoli](http://tripoli.org) Prefecture is a good idea, since you can
+learn a lot and see some great flights by showing up at a club launch.
+
+As we make progress, you can read about it in our [News](News) feed.
+We also hang out on IRC channel #altusmetrum on irc.oftc.net if you have
+questions that aren't answered here.
-<a href="hpim2581.jpg"> <img src="hpim2581-thumb.jpg"></a>
-<a href="hpim2582.jpg"> <img src="hpim2582-thumb.jpg"></a>
+And if you just can't wait to show your support for our efforts, visit
+our [Cafe Press Logo Shop](http://cafepress.com/altusmetrum) or our
+[Printfection Logo Shop](http://printfection.com/altusmetrum) (we're trying
+to decide which is better, comments welcome!) and buy a t-shirt or sticker!
-----
+---
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