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# TeleNano
This is an extremely small, baro-only recording altimeter for
high power model rocketry with integrated telemetry link.
## Motivation ##
We hope with TeleNano to deliver an interesting "introductory" product
in a different price category than our flagship products like
[TeleMetrum](../TeleMetrum). The combination of a baro altimeter and
radio direction finding ability in a super-tiny package seems like it
might be fun even for [Estes](http://www.estesrockets.com/) sized rockets!
## Features ##
### User View ###
* Recording altimeter for model rocketry
* 70cm ham-band transceiver for telemetry downlink
* Barometric pressure sensor good to 45k feet MSL
* Designed to use a single LiPo rechargeable battery
* 1.0 x 0.5 inch board designed to fit inside 18mm airframe coupler tube
### Developer View ###
* Hardware Features
* [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
* [Freescale MP3H6115A](http://www.freescale.com/webapp/search.partparamdetail.framework?PART_NUMBER=MP3H6115A6U) pressure sensor
* Software Features
* Written mostly in C with some 8051 assembler
* Runs from on-chip flash, uses on-chip RAM, stores flight data to
upper blocks of on-chip flash
* 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)
## Artifacts ##
The design files can be found on [git.gag.com](http://git.gag.com) in the
project [hw/telenano](http://git.gag.com/?p=hw/telenano;a=summary).
## Future Plans ##
We need to build and evaluate some prototypes, and review costing, before
deciding whether this design will go into production.
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