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Ship's Log.

Build logs, sea-trial reports and technical breakdowns — autonomous surface drones, underwater vehicles, sonar, acoustics and deep-ocean systems.

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Underwater Vehicles

3 MIN READ

18 JUN 2026

Designing a 100 m Pressure Housing on a Workshop Budget

PVC, acrylic and epoxy versus 11 bar of seawater: how we designed, potted and destructively tested the electronics housing for the Lamprey micro-AUV.

30 MAY 2026

Running YOLO on a Jetson for Real-Time Buoy Detection at Sea

Training and deploying a YOLOv8n model on a Jetson Orin Nano to detect buoys, boats and swimmers from the Remora surface drone — with the glare, spray and horizon problems nobody's dataset includes.

22 APR 2026

ArduRover on the Water: Tuning a Differential-Thrust USV

From zig-zag shame to straight lines: parameter-by-parameter tuning of ArduPilot Rover for the Remora surface drone — steering rate, L1 navigation, speed control and what wind does to all of it.

14 MAR 2026

Bathymetric Mapping With a €60 Fish Finder

Hacking the NMEA output of a consumer echosounder into a survey-grade-ish depth logger: transducer mounting, sound velocity, tide correction and turning half a million pings into a depth map.

08 FEB 2026

Talking Underwater: First Experiments With a DIY Acoustic Modem

Radio dies centimetres below the surface. First attempts at low-rate underwater acoustic communication with piezo transducers, chirp modulation and a lot of multipath disappointment.

#auv#acoustics

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