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Boat Owner Builds Open Source Digital Chart Plotter System on Raspberry Pi

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A boater delayed launching his vessel after a robin nested on the boat trailer, using the time to finish a digital upgrade. He built a custom system around a Raspberry Pi 4B running OpenPlotter, paired with a Copperhill PICAN-M hat to connect to the boat's NMEA 2000 network. The setup lets him integrate his Garmin chart plotter with other devices, log engine data, and add AIS and GPS receivers via Signal K software. He also configured the Pi as a Wi-Fi host and used a smartphone for internet access, with plans to add solar panels and lithium batteries.

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