to a USB thumb drive.
UART1 is GPS 9600 baud log messages are prefixed with "G:" UART2 is EFIS 115200 baud log messages are prefixed with "F:" UART3 is EMS 115200 baud log messages are prefixed with "E:"

The original version was based on mbed, which as a development environment did not age well.
The board I used is not available anymore and there is no hardware upgrade path.
The code won't build on the current or previous version of mbed.
The mbed version's c++ source is included only as reference.

USB Drive Airplane Data Logger

Teensy 4.0 based Arduino source.
Uses USBHost_t36.h and TimeLib.h.

Analysis Tools

Data analysis is done with Jupyter notebooks. Separate notebooks are used for EFIS and EMS logs.
GPS data is visualized with Google Earth.