Bdale and Keith share a strong commitment to [Free Software](https://en.wikipedia.org/wiki/Free_software), and as long time contributors to the [Debian](https://www.debian.org/) project are fully committed to the [Debian Social Contract](https://www.debian.org/social_contract). In the context of what you find here, this translates into an absolute commitment to respect user freedom:
Bdale's online store has a form you can use to [contact us](http://shop.gag.com/contact/). # Download the latest [AltOS](AltOS/) software version # # [Latest News](News) # # Where to Buy the Hardware # Altus Metrum products are available directly from [Bdale's web store](https://shop.gag.com), and from these distributors: * United States * [AMWPro-X](http://amwprox.com) * [Apogee Components](http://www.apogeerockets.com) * [Bay Area Rocketry](http://bayarearocketry.com) * [Chris' Rocket Supplies](http://csrocketry.com) * [Mile High Rocketry](https://www.milehighrocketry.com) * [RCS Rocket Motor Components](https://www.rocketmotorparts.com/Avionics/cat1577810_4805783.aspx) * [Rocketarium](https://www.rocketarium.com) * [Science Education Center](http://sciedcenter.com/) * [Wildman Rocketry](https://wildmanrocketry.com/) * Canada * [Canadian Rocket Store](https://www.allrockets.ca) * Italy * [SierraFoxHobbies](http://www.sierrafoxhobbies.com) * New Zealand * [Reliable Rocketry](https://sites.google.com/view/reliable-rocketry) # Products # These products are available for purchase: * [TeleMetrum](TeleMetrum/) was our original (and still our most popular!) product, a dual-deploy rocketry altimeter with GPS and RF telemetry link. * [TeleMega](TeleMega/) is a high-end flight computer with 6 pyro channels, tilt limits, more and better sensors, GPS, and RF telemetry link. * [TeleMini](TeleMini/) is our smallest dual-deploy rocketry altimeter with telemetry using only a barometric pressure sensor * [EasyMega](EasyMega/) is a high-end flight computer with 6 pyro channels, tilt limits, etc. The design is essentially identical to [TeleMega](TeleMega/), but without the GPS receiver and radio telemetry link. * [EasyMini](EasyMini/) is a small, low-cost, dual-deploy rocketry altimeter using just a barometry pressure sensor. * [EasyMotor](EasyMotor/) is an in-flight data logger for research motor characterization. * [EasyTimer](EasyTimer/) is a timer-based 2-channel pyro controller with tilt limits * [TeleDongle](TeleDongle/) is a simple USB to RF interface for use in ground stations interacting with rockets using any of our products with RF telemetry. * [TeleBT](TeleBT) is a variation on [TeleDongle](TeleDongle/) that adds [Bluetooth](http://www.bluetooth.com) as an alternative to USB. Particularly useful with the [AltosDroid](http://www.altusmetrum.org/AltosDroid/) app for Android devices, or the compatible iOS application available for sale from our friends at [Iron Sheep Productions](http://altosui.ironsheep.biz/). * [TeleGPS](TeleGPS/) is a GPS tracker and logger. * [TeleLaunch](TeleLaunch/) is a wireless launch control system capable of operating up to 792 pads. * [LipoCharger](LipoCharger/) is a standalone battery charger for the Lithium Polymer batteries used in Altus Metrum products. * [MicroPeak](MicroPeak/) is a rocket altimeter that is both precise and tiny, designed to be the ideal altimeter for model rocket contests. * [MicroPeak USB Interface](MicroPeakUSB/) provides an interface between [MicroPeak](MicroPeak/) and USB to download flight log data. # Projects # These are projects we're working on that may become products someday: * [AltOS](AltOS/) is the name of the firmware and related utilities that Keith maintains for the set of hardware projects here. * [AltosDroid](AltosDroid/) is the name of our Android app based on AltOS. * [ChaosKey](ChaosKey/) is a true hardware random number generator that connects over USB. * [OpenAlt](OpenAlt/) was Bdale's original project here, a dual-deploy rocketry altimeter. One prototype was built, but never flown. * [TeleStatic](TeleStatic/) is a wireless system for operating rocket motor test stands. * [TeleNano](TeleNano/) is a tiny rocketry altimeter with telemetry using only a barometric pressure sensor * [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. * [TeleShield](TeleShield/) is an [Arduino](http://arduino.cc) radio shield. * [TeleTerra](TeleTerra) is a hand-held ground station for use with [TeleMetrum](TeleMetrum/) and [TeleMini](TeleMini/). # [Documents](Documents) # # [Awards and Recognition](awards) # # 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. And thanks to Maddie for pointing out the paghes that [Lisa Richards](http://www.mapcon.com/model-rocket-maintenance-technology) maintains.
To find more information about the rockets Bdale and his son have built, see [Garbee Rockets](http://www.gag.com/rockets).
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! # [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](https://lists.gag.com/mailman3/postorius/lists/altusmetrum.lists.gag.com/). We also hang out on IRC channel #altusmetrum on irc.oftc.net if you have questions that aren't answered here. You can also find us on [Facebook](http://www.facebook.com/group.php?gid=341167482968), though note we don't check Facebook very often. 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) and buy a t-shirt or sticker! ---  Altus Metrum products are designed and manufactured in the United States of America. --- This site is powered by [ikiwiki](http://ikiwiki.info), and hosted by [Garbee and Garbee](http://www.gag.com) using [Debian GNU/Linux](http://www.debian.org) and [Apache](http://www.apache.org).