WII5 — open buoys, open data, open maths.

WII5 is an open-source wave-buoy project. AVR firmware, Linux maths code, schematics, PCB designs, and the wave-motion algorithms used by ice scientists — all in the open.

WII5 wave buoy

Built to last. Released to share. Documented so the next group can pick it up.

Buoys

WII1 through WII5. Hardware enclosures, batteries, electronics, firmware, and field tools.

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Software

Satellite-side server, analysis tooling, viewers, and the on-board maths code.

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Data

Sample payloads, schemas, links to live and curated archives, and the rules around what we can publish.

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