Technical specifications

The AyeAye® boat computer is an industrially designed ARM based, open-source compatible computer for leisure sailing vessels. The boating device integrates more than 20 traditional maritime products and features in an all-in-one hardware and software solution. The AyeAye® boat computer includes internal and external navigational and environmental sensors, GPS, autopilot, AIS, digital switching as well as 4G LTE internet. The product is expandable by connecting existing instruments of various brands and can be accessed from wherever you are, from any device.

Robust and durable casing

  • Splash, water, & dust resistant: Waterproof IP6x is protected against normal boating conditions
  • Vibration & shock proof: The casing protects the internal workings against vibration coming from an engine or shocks from heavier weather or waves
  • Cool & quiet: Passively cooled electronics with no active moving parts keep the system cool and quiet. An internal anodized aluminum heatsink and the casing itself absorb all excess heat.
  • Material: Aluminium
  • Dimensions: 340x130x210 mm



  • Can be connected to 12, 24 and 48 volt battery types
  • Overvoltage and short-circuit protection


  • The NMEA and SeaTalk devices are provided with 12 / 24 volts from the main computer
  • 12 / 24 / 48 volt is dependend on connected battery bank type
  • Digital switching of 4 separate devices is supported
  • All DC inputs and outputs are monitorable in a dashboard. Battery charge and usage are visible in the AyeAye® app

Emergency power:

  • Thanks to the internal battery, the AyeAye® boat computer can be used as an off-grid system
  • Internal battery: Chart plotter and GPS will keep working for a while in case of a power failure
  • Safe shutdown: The software is shut down safely in the event of a power failure


  • AyeAye® can be connected to a tiller / linear actuator or other type of electric motor
  • Power output: 20A
  • Supports hydraulic mode

Digital switching

  • Solid state relays
  • Connect 4 switchable devices
  • 4A per output

Antenna connections

  • GPS, AIS, 4G
  • Connector type: sma & bnc

NMEA connections

  • NMEA 0183 devices roughly from between 1983 and 2001
  • NMEA 2000 / CAN-bus devices after about 1997
  • SeaTalk1 receiver: for connecting older Raymarine devices
  • SeaTalkNG: for connecting newer SeaTalk devices that operate by CAN-bus

Internet & connectivity

  • 4G LTE Internet
  • personal SIM and eSIM
  • WiFi hotspot & access point
  • LAN

AIS and MarineTraffic

  • Receive class A and B radio messages 161.975 MHz and 162.025 MHz, using a bandwidth of 25 kHz
  • Internet AIS sends your position through MarineTraffic


  • -165 dBm sensitivity, 10 Hz updates, 66 channels
  • High-quality GPS module that can track up to 22 satellites on 66 channels
  • Up to 10 location updates a second for high speed, high sensitivity logging or tracking

Internal sensors

Magnetic compass:

  • 3-axis silicon monolithic Hall-effect magnetic sensor with magnetic concentrator
  • Wide dynamic measurement range and high resolution with lower current consumption
  • Output data resolution of 14 bit (0.6 µT/LSB)
  • Full scale measurement range is ±4800 µT
  • Magnetometer normal operating current: 280 µA at 8 Hz repetition rate
  • Self-test function with internal magnetic source to confirm magnetic sensor operation on end products


  • Digital-output triple-axis accelerometer with a programmable full scale range of ±2g, ±4g, ±8g and ±16g and integrated 16-bit ADCs
  • Accelerometer normal operating current: 450 µA
  • Low power accelerometer mode current: 8.4 µA at 0.98 Hz, 19.8 µA at 31.25 Hz
  • Sleep mode current: 8 µA
  • User-programmable interrupts
  • Wake-on-motion interrupt for low power operation of applications processor
  • Self-test

Gyroscope 3D motion:

  • Digital-output X-, Y-, and Z-Axis angular rate sensors (gyroscopes) with a user-programmable full-scale range of ±250, ±500, ±1000, and ±2000°/sec and integrated 16-bit ADCs
  • Digitally-programmable low-pass filter
  • Gyroscope operating current: 3.2 mA
  • Sleep mode current: 8 µA
  • Factory calibrated sensitivity scale factor
  • Self-test

Barometric pressure:

  • RMS Noise: 0.2Pa (equiv. to 1.7cm)
  • Sensitivity Error: ±0.25 % (equiv. to 1m at 400 m height change)
  • Temperature coefficient offset: ±1.5 Pa/K (equiv. to ±12.6 cm at 1 °C temperature change)

Air humidity:

  • Response time: 1 s
  • Accuracy tolerance: ±3 % relative humidity
  • Hysteresis: ≤2 % relative humidity

External temperature sensors

We provide one (expandable to three) external DS18B20 weather proof temperature sensor for monitoring exhaust temperature, refrigerator or any other source you’d like to monitor.

  • Stainless steel tube 6 mm diameter by 30 mm long
  • Cable is 36″ long / 91 cm, 4 mm diameter
  • Contains DS18B20-compatible temperature sensor
  • If your sensor has four wires – red connects to 3-5V, black connects to ground and white is data. The copper wire is soldered to the wire shielding
  • If your sensor has three wires – red connects to 3-5V, blue/black connects to ground and yellow/white is data
  • Usable temperature range: -55 to 125 °C (-67 °F to +257 °F)
  • 9 to 12 bit selectable resolution
  • Uses 1-Wire interface- requires only one digital pin for communication
  • Unique 64 bit ID burned into chip
  • Multiple sensors can share one pin
  • ±0.5 °C Accuracy from -10 °C to +85 °C
  • Temperature limit alarm system
  • Query time is less than 750 ms
  • Usable with 3.0V to 5.5V power/data


  • CPU: Quad core Cortex-A55 (ARM v8) 64-bit SoC @ 1.8GHz
  • Memory: 1GB, 2GB, 4GB or 8GB LPDDR4
  • OS storage: Operating system: 8GB, 16GB, 32GB, 64GB, 128GB (depending on variant) high performance eMMC
  • Charts storage: 64 GB

Operating systems

AyeAye® is using the following open source systems, offering you extra interoperability and flexibility of the system:


  • A custom distribution of OpenPlotter is running the operating system and applications.
  • Signal K is configured for all data throughput and chart streaming.
  • Pypilot is running the autopilot computer and motor controller.

Nautical charts

A distribution of OpenSeaMap’s most recent charts are available offline via local storage, supporting the following areas:


  • Canada – NorthWestPassage
  • US / Mexico – Westcoast
  • US – GreatLakes
  • Caribian area
  • South-Pacific Islands
  • MagellanStrait
  • North-Atlantic ocean
  • North Sea
  • Netherlands
  • Baltic
  • Saimaa
  • English Channel / Dover street
  • Europe-inland
  • Germany – North East
  • GulfOfBiscay
  • Mediteranian West
  • Adriatic
  • Mediteranian East
  • Arabic Sea
  • GulfOfBengal
  • South-Chinese Sea
  • East-Chinese Sea

Extra online layers are available as overlay: Google Satellite

Weather download

Download .ZyGrib files and play them as overlay on the chart plotter

Windy integration