How OpenCPN and SignalK Replaced Our Expensive Navigation Software

We recently ditched our expensive browser software in favor of Signal K and OpenCPN, free alternatives. When planning passages, we can now plot the best course based on weather and current, transfer that course to multiple devices onboard Sabado, overlay radar, and customize our anchor monitoring alarm. Using Grafana and influxDB, we also designed a page displayed on our navigation desktop screen (and on mobile devices when we are away) that tracks our energy and water levels, refrigeration temperatures, propane and fuel levels, and more! Color-coded data and voice alarms have taken the mystery out of our boat: we can check everything on one screen, and there are no unidentified beeps!

An added advantage of this new system is that it is all free and open source software, including the Linux operating system.

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