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Open-source marine technology: sailing robots, ocean drones and environmental sensing hardware — Protei

Open marine hardware

Sailing robots, ocean drones and the sensors aboard

Protei documents open-source marine technology in plain words — build notes, gear guides and honest reviews of the hulls, rigs and instruments that go to sea.

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Sailing robots

Wind-driven hulls and ocean drones: rigs, steering, power and what a long swell does to all three.

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Sensing hardware

Environmental sensing kit aboard small craft — mounting, logging, drift and the calibration that keeps it honest.

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From the workshop

What gets documented here is the part that usually happens off camera: the hull that leaked, the sensor that drifted, the fix that held through a second day of swell. Parts are named, methods are described in the order things actually happened, and the failures worth repeating are left in.

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Just off the bench

Latest from the water

Newest write-ups first — sea trials, teardowns and the gear that earns its place aboard.

Protei

Guides to sailing robots, ocean drones and marine sensors: build tutorials, hardware reviews, field-test tips and clean-water tech ideas for US makers.

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