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Ked Tracker - Open Glider Network tracker hardware

Based on design by glidernet.org project: http://wiki.glidernet.org/ogn-tracker-diy.

It is a small airborn avionic device that periodically transmits aircraft position. Signal is picked up by ground-based receivers and published on Open Glider Network, so that aircraft position can be found on various aircraft tracking systems, like http://glidertracker.de/ or https://www.flightradar24.com/. It is also received by other OGN tracker devices in the vicinity and can be used to improve pilot' situation awareness. See http://wiki.glidernet.org/ for more information.

Ked Tracker is designed using KiCad electronic schematic and PCB design software.

Features

  • Can be powered from onboard 12V power supply (or any 9-24V power supply for that matter).

  • Standard NMEA output.

  • Uses FLARM NMEA sentences to report detected nearby aircrafts for interoperability with existing hardware and software.

  • Communication via standard IGC RJ45 socket. Allows to re-use existing equipment like FLARM viewers or cables.

  • Communication via USB interface. Device is visible as virtual COM port when connected to a computer. Requires no special cables other then standerd micro-USB cable. Device can also be powered by 5V from USB interface.

  • Communication via Bluetooth. For hassle-free wireless connection with phone or tablet.

  • Barometric sensor onboard for more precise altitude measurement.

  • Slot for SD-card. Currently for logging device activity. Firmware for IGC flight logger is pending.

  • Beeper to provide sound feedback for important events.

Schematics

Current schematics can be also downloaded in PDF format.

Schematic Page 1 Schematic Page 2

Setting Up Development Environment

You will need to install additional packages for development. Packages for ubuntu are specified here; other operating systems might have similar requirements.

Building Firmware and Flashing MCU

sudo apt install gcc-arm-none-eabi openocd picocom
sudo add-user `whoami` plugdev
sudo add-user `whoami` dialout

Developing Hardware

sudo apt install kicad