Moitessier HAT

OUT NOW! Raspberry Pi HAT for OpenPlotter

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Our Newcomer

We are happy to introduce to you the new Moitessier HAT for use with Raspberry Pi and compatible.

Full, open-source marine navigation features for the Raspberry Pi. And even better: Our device is officially supported by OpenPlotter – the open-source sailing platform for ARM computers.

Open-Source Navigation

Officially supported by the open-source sailing platform for ARM computers


High sensitivity

Dual channel AIS receiver with SMA antenna connector with a sensitivity better than -112 dBm.

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High performance

GNSS receiver with integrated patch antenna and external antenna support via BNC connector.

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Available NOW!

Buy the Moitessier HAT at


Built with passion – and high quality

The Moitessier HAT contains all the basic features to turn your Raspberry Pi which runs OpenPlotter into a complete marine navigation system.

Awesome – we hope you’ll like it too!


Get the Moitessier HAT exclusively at Sailoog’s Online Shop.


We have prepared a quick installation guide.

You can see it here: Quick Installation Guide

Also OpenPlotter has a good documentation for how to install the HAT: OpenPlotter Docs


Ready to go.

Please, tell us what you think about the Moitessier HAT. We encourage you to send any feedback or inquiries via email or contact form. For public review we suggest to write your review directly at our Google business idendity.

Write a Google review

Coming Soon: Enclosure for Pi and HAT

Everything in its right place. The Rooco Raspberry Pi case has been designed to securely fit your Raspberry Pi 3 with attached Moitessier HAT. Makes your perfect OpenPlotter platform.

From our Media Library

We are still working on more media material. In the meanwhile …

Latest From Our Blog

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Customer Reviews for Moitessier HAT

We try to make things as good as possible. We think that with the Moitessier HAT for OpenPlotter we created a compact and competitive Raspberry Pi HAT with its intended usage as affordable marine navigation aid. We are in continuous contact with the creator of...

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Technical Specification

Supply voltage: 3.135 V min., 3.465 V max. Current consumption: 185 mA Operating temperature range: -20 - 65 °C Dimensions: 69x57 mm Weight: 39g Interface (as seen from Raspberry Pi):  SPI Input Frequency: 161.975 / 162.025 MHz Input Sensitivity: < -112...

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Firmware and Drivers

Find Firmware and Drivers for Raspberry Pi Moitessier HAT on GitHub You will find all related source code on GitHub: Moitessier HAT source code on GitHub The respository consists of several submodules that include the following: Linux device driver to...

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