Every boat tells its story through gauges. RPM, fuel, oil pressure, trim — the dials are the heartbeat of the vessel. On my 1994 Monterey, those gauges are classic, but they’re also isolated. They look good, but they don’t talk to anything.
That’s where the next upgrade comes in.
The CX5106 Converter: Analogue to Digital
The CX5106 Multi-function NMEA 2000 Signal Converter is the bridge. It takes the signals from my analogue gauges and converts them into NMEA 2000 data. Suddenly, the information that used to live only on a dial can now:
- Appear on my Garmin chart-plotter alongside maps and sonar
- Stream into OpenPlotter on the Raspberry Pi
- Be logged, graphed, and analyzed over time
- Trigger alerts or automation in the future
It doesn’t replace the gauges — it enhances them. I still have the analogue dials for redundancy, but now I also have a digital layer that can be customized and expanded.
OpenPlotter Dashboards
With OpenPlotter running on the Raspberry Pi 4B (and connected via the Copperhill PICAN-M hat), I can build dashboards that show exactly what I want:
- Engine RPM, fuel, and trim on one screen
- Depth, speed, and heading on another
- Even custom alerts like “low voltage” or “high temperature”
And because it’s open source, I can tweak the layout, add widgets, and stream the data to a tablet or phone over Wi‑Fi.
Why This Matters
This upgrade isn’t just about convenience. It’s about:
- Situational awareness: all the critical data in one place
- Redundancy: analogue gauges + digital displays = backup for both
- Future‑proofing: once the data is digital, it can feed into automation, logging, and even voice alerts
It’s the difference between glancing at a handful of dials and having a full picture of the boat’s health at a glance.
The Bigger Vision
With the Garmin, NMEA 2000 backbone, Raspberry Pi, and CX5106 working together, the boat is no longer just analogue with add‑ons. It’s becoming a connected system.
This is the foundation for the future:
- Smarter power management
- Automated stabilizers
- Voice‑activated controls
- Even self‑driving assist tied into radar and chart-plotters
The dream is taking shape, one upgrade at a time.