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[web/altusmetrum] / TeleDongle / index.mdwn

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+# TeleDongle
+
+This is an RF interface designed primarily for use as a ground station
+interacting with a [TeleMetrum](../TeleMetrum/) altimeter on board a high 
+power model rocket.  The primary computer interface is USB, but async serial
+and SPI are also available as alternatives.  The RF filter components are
+by default set for use in the vicinity of 435 Mhz, but can be altered to
+support other frequency ranges.
+
+## Features ##
+
+### User View ###
+
+* 70cm ham-band transceiver for interaction with [TeleMetrum](../TeleMetrum/)
+* USB interface for power, configuration, and data interface
+* 4 pin Tyco MicroMaTch connector for debug and flash programming
+* 8 pin Tyco MicroMaTch connector supports serial or SPI interface
+* 1.1 x 1.1 inch 2-layer board, fits inexpensive Hammond 1551 plastic enclosure
+
+### Developer View ###
+
+* [TI CC1111F32](http://focus.ti.com/docs/prod/folders/print/cc1111f32.html) Low Power RF System-on-Chip
+       * Sub-1Ghz transceiver
+       * 8051 MCU
+       * 32k Flash
+       * 4k RAM
+       * USB 2.0
+       * 6 12-bit analog inputs (11 bits with single-ended sensors)
+       * 2 channels of serial I/O
+       * digital I/O
+* Software Features (planned)
+       * Written mostly in C with some 8051 assembler
+       * Runs from on-chip flash, uses on-chip RAM
+       * USB serial emulation for data interface
+* Tools Used
+       * [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
+       * [SDCC](http://sdcc.sourceforge.net/) 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)
+
+## [Production History](production) ##
+
+## Artifacts ##
+
+The hardware design current gEDA files are available from 
+[git.gag.com](http://git.gag.com) in the project 
+[hw/teledongle](http://git.gag.com/?p=hw/teledongle;a=summary).  
+
+For those who don't have ready access to the gEDA suite, here are pdf snapshots
+of files in more easily readable form.  
+
+* [schematic](v0.2/teledongle.pdf)
+* [pcb artwork](v0.2/teledongle.pcb.pdf)
+* [bill of materials](v0.2/partslist.csv)
+
+This board is an integral part of a [TeleMetrum](../TeleMetrum/) system, and
+the firmware for both share common elements.  More details, including full 
+source code and pre-built packages can be found on the 
+[AltOS](../AltOS) page on this site.
+
+## Future Plans ##
+
+We hope to fabricate an initial batch of TeleDongle v0.2 boards in
+February 2010, and intend to make both loaded circuit boards and complete
+packaged units available for sale soon.
+