This is a very small, baro-only recording dual-deploy altimeter for model rocketry with integrated telemetry link.

Attention ! We are unable to provide warranty support for this unit outside of North America.

For the latest TeleMini firmware and related ground station software, please visit the AltOS page on this site.

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 a single LiPo rechargeable battery
• 512kB flight data storage
• 1.7 x 0.5 inch board designed to fit inside 18mm airframe coupler tube

Developer View

• Hardware Features
  • ST STM32F042G6 system on chip
    • ARM Cortex-M0 MCU
    • 32k Flash
    • 6k RAM
    • USB 2.0
    • digital I/O

  • TI CC1200 High Performance RF Transceiver for Narrowband Systems

  • Measurement Specialties MS5607 pressure sensor

  • Macronix MX25L4006E 512kB serial flash memory
• Software Features
• Written mostly in C with some ARM assembler
• Tools Used
  • gEDA for schematic capture and PCB layout
  • SDCC compiler and source debugger
• Licenses
  • The hardware is licensed under the TAPR Open Hardware License
  • The software is licensed GPL version 2 or later

Artifacts

There is a single manual for TeleMini and all other Altus Metrum products, which is available in html and pdf formats.

The hardware design files can be found on git.gag.com in the project hw/telemini.

For those who don't have ready access to the gEDA suite, here are pdf snapshots of the files for Production PCB version 3.0 in more easily readable form.

• schematic
• pcb artwork
• bill of materials