Moitessier HAT

Full, open-source marine navigation features for the Raspberry Pi, officially supported by OpenPlotter.

Raspberry Pi HAT

The Moitessier HAT is a Raspberry Pi compatible Hardware (“Attached on Top”). Designed for plug-and-play compatibility with OpenPlotter system.

High-sensitivity dual channel AIS receiver with SMA antenna connector

Sensitivity: -112 dBm min.

High-performance GNSS receiver

Integrated patch antenna plus support for external antenna via BNC connector

Standalone usage or in combination with Raspberry Pi

Fully compatible with Raspberry Pi models supporting 40-pin IO header

3 status LEDs

AIS status, GNSS status, Error

Navigate with OpenPlotter

OpenPlotter makes an integrated Open-Source chart-plotter and navigation platform running on a Raspberry Pi. It is based on the well-known OpenCPN software. You may use OpenPlotter in a headless mode as well – access OpenPlotter desktop from the cockpit through your mobile devices.

Technical Specification

  • Supply voltage: 3.135 V min., 3.465 V max.
  • Current consumption: 185 mA
  • Operating temperature range: -20 – 65 °C
  • Dimensions: 69×57 mm
  • Weight: 39g
  • Interface (as seen from Raspberry Pi):  SPI
  • Input Frequency: 161.975 / 162.025 MHz
  • Input Sensitivity: < -112 dBm
  • Output Data Rate: 9600 bits/s
    Packet Interval: 37.5 Hz
  • BT: 0.5
  • Interface (as seen from Raspberry Pi): SPI
  • Data Rate: 9600 bits/s
    Packet Interval: 1 Hz
  • Channels: Acquisition: 99; Tracking: 33
  • Supported Satellite Systems: GPS, GLONASS, QZSS
  • Sensitivity: Acquisition: -148 dBm; Tracking: -165 dBm

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 communicate with the HAT
  • User tools/applications to configure the operation mode and to update the firmware of the HAT
  • Firmware of the HAT microcontroller
  • Device tree and appropriate tools to write the ID EEPROM

Each submodules includes a file for detailed information.

Stay tuned

We will provide pre-compiled packages for download. Soon.

Available Ressources

Safety Advices

Advices to properly handle your Moitessier HAT device Damage to the device can occur as the result of improper handling or electrostatic discharge (ESD). Always handle the device with care to avoid damage to electrostatically sensitive components.Only handle by the...

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