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Bdale Garbee and Keith Packard are developing a solid-looking open source telemetry system, that they call TeleMetrum. They have a production version available in their shop, and the board design and firmware available for download. It’s got some impressive specs:

  • 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 45k feet MSL
  • 1-axis high-g accelerometer for motor characterization
  • On-board, integrated GPS receiver
  • On-board non-volatile memory for flight data storage
  • USB for power, configuration, and data recovery
  • Integrated support for LiPo rechargeable batteries
  • Uses LiPo to fire e-matches, optional support for separate pyro battery
  • 2.75 x 1 inch board designed to fit inside 29mm airframe coupler tube

[via antitronics]


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