A recording GPS tracker Keith Packard 2014 Bdale Garbee and Keith Packard This document is released under the terms of the Creative Commons ShareAlike 3.0 license. 1.0 28 May 2014 Initial release with preliminary hardware. Have fun using these products, and we hope to meet all of you out on the rocket flight line somewhere. Bdale Garbee, KB0G NAR #87103, TRA #12201 Keith Packard, KD7SQG NAR #88757, TRA #12200 TeleGPS is designed to be easy to use. Requiring no external components, flying takes just a few steps. All Altus Metrum products are sophisticated electronic devices. When handled gently and properly installed in an air-frame, they will deliver impressive results. However, as with all electronic devices, there are some precautions you must take. The Lithium polymer batteries have an extraordinary power density. This is great because we can fly with much less battery mass... but if they are punctured or their contacts are allowed to short, they can and will release their energy very rapidly! Thus we recommend that you take some care when handling TeleGPS to keep conductive material from coming in contact with the exposed metal elements. As with all other rocketry electronics, Altus Metrum devices must be protected from exposure to corrosive motor exhaust and ejection charge gasses.

TeleGPS uses the u-Blox Max-7Q GPS receiver.

TeleGPS uses an NXP LPC11U14 micro-controller. This tiny CPU contains 32kB of flash for the application and 4kB of RAM for temporary data storage.

Shipping restrictions may prevent us from including a battery battery with TeleGPS.

TeleGPS is designed to be rugged enough for typical rocketry applications.

TeleGPS has some bytes of non-volatile storage, separate from the code storage memory. The TeleGPS firmware uses this to store information about the last completed flight.