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# TeleGPS
This is a GPS-based position tracker and logger. It uses the same GPS
receiver and similar radio to our flight computers, but does not include
pyro circuits. This allows the board to be small and light, so that it will
fit well anywhere you need a good GPS tracker.
For the latest TeleGPS firmware and related ground station software, please
visit the [AltOS](../AltOS) page on this site.
These are photos of production version 1.0:
<a href="v1.0/telegps-v1.0-top.jpg"> <img src="v1.0/telegps-v1.0-top-thumb.jpg"></a>
<a href="v1.0/telegps-v1.0-bottom.jpg"> <img src="v1.0/telegps-v1.0-bottom-thumb.jpg"></a>
## Features ##
### User View ###
* GPS tracker and logger
* Offers custom digital telemetry, APRS and direction beacons
* High-dynamics GPS receiver for accurate tracking
* Uses 3.7V Lithium Polymer battery.
* 1.5 x 1.0 inch board designed to fit inside 29mm airframe coupler tube
* 2MB on-board data logging flash
* Built-in USB connection for configuration, data download and battery charging
### Developer View ###
* Hardware Features
* [NXP LPC11U14](http://www.nxp.com/products/microcontrollers/cortex_m0_m0/LPC11U14FHI33.html) System-on-Chip
* ARM Cortex-M0 MCU
* 32k Flash
* 6k RAM
* USB 2.0
* 8 12-bit analog inputs
* I2C, SPI, async serial
* digital I/O
* [uBlox Max 7Q](http://www.u-blox.com/en/gps-modules/pvt-modules/max-7.html) GPS receiver
* 2MB SPI flash
* Software Features
* Written mostly in C with some ARM assembler
* Runs from on-chip flash, uses on-chip RAM, stores tracking data to
flash memory part
* Tools Used
* [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
* [GCC](http://gcc.gnu.org/) compiler and source debugger
* Licenses
* The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)
* The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
## Artifacts ##
There is a single manual for TeleGPS and all other Altus Metrum products,
which is available in [html](../AltOS/doc/altusmetrum.html) and
[pdf](../AltOS/doc/altusmetrum.pdf) formats.
The hardware design files can be found on [git.gag.com](http://git.gag.com)
in the project [hw/telegps](http://git.gag.com/?p=hw/telegps;a=summary).
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