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Download d3kOS

Flash to a 128GB microSD, insert into your Raspberry Pi 4B, and your helm computer boots in under 2 minutes.

d3kOS helm dashboard running on 10.1 inch display

v0.9.9.5

LATEST October 9, 2026
  • Over-the-air updates — your Pi now updates itself automatically when a new version is available.
  • Helm Voice AI (D-VA-01) — say "Helm", ask a question, hear the answer. Powered by Gemini with RAG from your boat and engine manuals. Works offline.
  • SafeHelm collision advisory — monitors AIS targets, computes CPA/TCPA using COLREGs rules, spoken and on-screen alerts.
  • USB-CAN-A NMEA 2000 — auto-detects USB-CAN-A or PiCAN-M adapter on boot, no manual setup.
  • AIS redesign — ais-catcher replaces rtl_ais; works from first boot, no community telemetry.
  • AtMyBoat.com registration — scan QR in wizard, account created and Pi paired in one step.
  • Complete 9-step setup wizard with mandatory password-change first boot.
  • Signal K Forward Watch v0.2.5 — false alarms eliminated (97 moored alarms → 0 in sea trial replay).
  • Full helm dashboard — 8 navigation rows, Marine Vision camera system, SafeHelm widget.
  • Boatlog with voice notes and data export (CSV + JSON).
  • Signal K v2.23.0, AvNav 20250822, Flask + Chromium kiosk, AODA / IEC 62288 compliant.
Download v0.9.9.5 from Archive.org →
Read the manual before you build. The d3kOS User Manual covers every step — hardware wiring, first boot, the setup wizard, NMEA 2000 configuration, camera setup, and HELM voice assistant. Everything in one place.
Open User Manual →

Installation — 3 Steps

Flash the image

Download the .img.gz file from Archive.org. Use Raspberry Pi Imager to flash it to a 128GB+ microSD card.

Boot your Pi

Insert the card into your Raspberry Pi 4B, connect your display, and power on. d3kOS boots to the helm dashboard automatically — no keyboard or mouse needed.

Run the setup wizard

The 8-step setup wizard launches on first boot. Enter your vessel name, connect your CX5106, and configure your cameras. Takes about 10 minutes.

Requirements

Hardware Required

  • Raspberry Pi 4B (4GB or 8GB RAM)
  • 64GB+ microSD (A2 rated recommended)
  • 12V boat power (12V → 5V/5A USB-C converter)
  • 10.1" or larger HDMI display (touchscreen recommended)

Optional — Full Feature Set

  • CX5106 NMEA2000 adapter (engine monitoring)
  • Reolink RLC-810A PoE cameras (Marine Vision)
  • PoE switch (up to 4 cameras)
  • USB GPS receiver (if NMEA2000 GPS not available)
d3-k1 helm station installed on a boat

Questions about installation? Ask in the d3kOS Support forum.