Portable CAN Bus logger

• Case background Standalone CAN data logger to autonomously capture onboard CAN‑bus communications in-flight.
• Case objective Provide a compact, rugged, portable solution that reads and logs specified onboard CAN databus frames during flight, with real-time filtering and identifier-based triggering, supporting diagnostics.
• Other information
  • Logs raw CAN frames with timestamps to local storage (e.g., SD card), while offering configurable ID‑mask filtering and live event markers.
  • Optional offload interface and a lightweight analytics-ready export format for ingestion into post‑flight GUI dashboards.