+
+
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 work
-perpetually in process!
+[Bdale Garbee](http://gag.com/~bdale) and
+[Keith Packard](http://keithp.com/keithp)
+document our work on open hardware and software designs for
+high powered model rocketry avionics solutions.
+<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.
+
+# [Latest News](News) #
-# TeleMetrum
+# Where to Buy #
+All Altus Metrum products are available from the
+[Garbee and Garbee](http://auric.gag.com) web
+store. [TeleMetrum](TeleMetrum/) starter kits are also available from
+[Apogee Components](http://www.apogeerockets.com/Altus_Metrum_GPS.asp)
+and [Australian Rocketry](http://www.ausrocketry.com/shop/index.php?main_page=product_info&cPath=111&products_id=4302).
+
+# 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. This very brief
+[Ted presentation by Steve Jurvetson](http://www.ted.com/talks/steve_jurvetson_on_model_rocketry.html)
+quickly conveys at least part of why we do this. 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. OpenAlt 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
+Keith and other 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 primary project, a dual-deploy rocketry altimeter with
+GPS and bidirectional RF telemetry link.
+
+* [TeleDongle](TeleDongle/)
+is a simple RF interface for use in ground stations interacting with rockets
+using [TeleMetrum](TeleMetrum/). It may also be useful as a generic RF
+interface for other microcontroller systems.
+
+* [TeleMini](TeleMini/)
+is a smaller dual-deploy rocketry altimeter with telemetry using only a
+barometric pressure sensor
+
+* [TeleNano](TeleNano/)
+is a tiny rocketry altimeter with telemetry using only a barometric
+pressure sensor
+
+* [AltOS](AltOS/)
+is the name of the firmware and related utilities that Keith maintains for
+the set of hardware projects here.
+
+* [LipoCharger](LipoCharger/)
+is a standalone battery charger for the Lithium Polymer batteries used in
+Altus Metrum products.
+
+* [TelePyro](TelePyro/) is a companion board for [TeleMetrum](TeleMetrum/)
+that adds 8 additional pyro channels.
+
+* [TeleScience](TeleScience/) is a companion board for
+[TeleMetrum](TeleMetrum/) that adds 12 channels of thermistor or generic
+analog sensor input, and 5 general purpose I/O lines.
+
+* [TeleTerra](TeleTerra) is a planned hand-held ground station for use with
+[TeleMetrum](TeleMetrum/).
+
+* [OpenAlt](OpenAlt/)
+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.
+
+# [Using Altus Metrum Products](Uses) #
+
+# [Presentations](talks) #
+
+# 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. Feel
+free to subscribe to our
+[mailing list](http://lists.gag.com/mailman/listinfo/altusmetrum). We also
+hang out on IRC channel #altusmetrum on irc.oftc.net if you have
+questions that aren't answered here. And if you're a Facebook user, you
+can join the [Altus Metrum](http://www.facebook.com/group.php?gid=341167482968)
+Facebook group.
+
+Our main projects include radio links. If you don't already have one,
+getting an [Amateur Radio](./Radio) license would be a good thing to do!
+
+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!
+
+---
-<a href="hpim2581.jpg"> <img src="hpim2581-thumb.jpg"></a>
-<a href="hpim2582.jpg"> <img src="hpim2582-thumb.jpg"></a>
+
+Altus Metrum products are designed and manufactured in the
+United States of America.
-----
+---
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