What is OpenPlotter?

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There are people who buy boats but there are also people who build them, why not build your own electronics too? OpenPlotter is a combination of software and hardware to be used as navigational aid on small and medium boats. It is also a complete home automation system onboard. It works on ARM computers like the Raspberry Pi[1] and is open-source, low-cost and low-consumption. Its design is modular, so you just have to implement what your boat needs. Do it yourself.


  • OpenCPN[2]. Concise and robust navigation software. Chart a course and track your position.
  • zyGrib[3]. Weather data download and visualization of GRIB files format 1 and 2.
  • SDR-AIS. Receive and decode AIS with cheap DVB-T dongles. Calibration tools Included.
  • NMEA 0183. Receive, filter, multiplex and send NMEA data through serial and network inputs and outputs.
  • NMEA 2000. Connect an USB adapter to your N2K network to receive and send data.
  • Signal K Server[4]. Convert data from sensors to Signal K and exchange data between all formats.
  • WiFi Access Point. Share NMEA and Signal K data with laptops, tablets and phones.
  • Headless. Access to OpenPlotter desktop from the cockpit through your mobile devices.
  • Dashboards. Build instrument panels to visualize data from your mobile devices.
  • Compass. Heading and heel from an IMU sensor. Tilt compensated. Self-calibration.
  • 1W sensors. Connect multiple temperature sensors. Motor, exhaust, fridge, water ...
  • I2C sensors. Connect temperature, pressure, humidity or light sensors.
  • SPI sensors. Measure battery charge, tank level or any data from an analog sensor.
  • Digital inputs. Connect common or specials switches. Detect smoke, opening doors, motion ...
  • Digital outputs. Activate relays, LEDs, buzzers ...
  • Actions. Use date, time or value of any data flowing through your system as a trigger to run multiple actions.
  • Share data. Publish data from your boat on Twitter or send emails and SMS automatically.
  • Remote Monitoring. Receive or send data to your boat while you are away.
  • Open tools. Use multiple built in tools to interact with the system and create your own ones.

[1] https://www.raspberrypi.org [2] http://opencpn.org [3] http://www.zygrib.org [4] http://signalk.org

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