A Chartplotter and GPS Navigation Software.

OpenCPN is a free software (GPLv2) project to create a concise chartplotter and navigation software for use as an underway or planning tool.  OpenCPN is developed by a team of active sailors using real world conditions for program testing and refinement.

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Access FURUNO Radar System data using Python ( Simple)

Now you can access Furuno ECDIS output data using simple Python programm,

Furuno 2XX7 series has got interface board and in that board few data outlets are available. 
first of all get the Furuno 2xx7 series service manual , if not i can help you how to find ECDIS 
output and Nav Output


from both the ports having NMEA 0180 new version output,

Download NMEA 0180 standards ,using google or any other search engine,

Read my other blogs to understand of simple and complex python program to access Radar RAW data  .