# TeleMini Version 1.2 # This is a small, baro-only recording dual-deploy altimeter for model rocketry with integrated telemetry link. It's different from the original TeleMini: * Supports batteries from 3.7V - 12V * Screw terminals for switch and external battery * Large on-board flash for data recording * Built-in USB connector for configuration and data download * High precision and digital barometric sensor For the latest TeleMini firmware and related ground station software, please visit the [AltOS](../AltOS) page on this site. These are photos of our current prototype version: ## Features ## ### User View ### * Recording altimeter for model rocketry * Supports dual deployment (can fire 2 ejection charges) * 70cm ham-band transceiver for telemetry downlink * Barometric pressure sensor good to 100k' feet MSL * Designed to use any battery from 3.7 - 12V * 1.5 x 0.8 inch board designed to fit inside 24mm 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 * [Measurement Specialties MS5607](http://www.meas-spec.com/product/pressure/MS5607-02BA03.aspx) pressure sensor * 1MB SPI flash * Software Features * Written mostly in C with some 8051 assembler * Runs from on-chip flash, uses on-chip RAM, stores flight data to on-board flash memory * 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 ## There is a single manual for TeleMini 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/telemini](http://git.gag.com/?p=hw/telemini;a=summary).