Project

Flight Data Concentrator

A custom board, firmware, and enclosure that gathers EFIS and engine-controller data in a RANS S-20, logs it, feeds the Rotax display, and serves a cockpit page to a tablet.

Contact Software

Hardware.

  • Custom 4-layer board with a Teensy 4.1, an ESP32, and a single DB25 harness connector.
  • RS-232, CAN, analog outputs, and microSD, in a parametric 3D-printed enclosure.
Top render of the circuit board with the DB25 connector at left, Teensy 4.1 at top right, and ESP32 Feather at bottom right.
Circuit board, top

Software.

  • C++ firmware that parses G3X and ECU data, flags stale values instead of freezing them, and logs to SD.
  • Tablet cockpit page over the unit’s own WiFi, with automated tests and CI.
System diagram: Garmin G3X and Autronic ECU feed a Teensy 4.1, which drives a Rotax display, an altitude encoder, and analog outputs, and connects to an ESP32 that serves a tablet over WiFi.
System overview