Goal, eliminate expensive retail instruments including displays.
I'm giving this a try. Has wind.
So much less expensive.
http://www.42.co.nz/freeboard/
https://github.com/rob42
If you go the rasbian route, exercise caution with power supplies, powered hubs, multiple power sources, as you can easily burn this stuff out. I found the hard way to power everything with one source, mine NOW being a powered hub with no back feed. Remember NO usb port back feed. I'm still trying out this https://www.amazon.com/gp/product/B01ASVYJJS/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
It's all still on the "work bench". would have been installed alreaady had I not cooked it and then it sat waiting for a time investment to figure out what I did
Remember don't connect power to the Vin terminal of anything you are connecting a Raspberry Pi 
Smart transducer for speed, depth, temp with nmea out DTST800: https://www.furunousa.com/ProductDocuments/DST-800PSF.pdf
http://faq.airmar.com/index.php?sid=2438364&lang=en&action=artikel&cat=3&id=41&artlang=en
Add a 484 to 232 converter (usb or not) to feed to a computer or some sort if you like. Other wise it's nmea in for any chart plotter, display, function, etc.....
It will usb in to a freeboard server direct. One does not have to use the freeboard plc.
another project:
Enhancing marine electronics with Rasberry Pi: http://www.themagpi.com/issue/issue-30/
King Tide Sailing
http://kingtidesailing.blogspot.com/
I'm giving this a try. Has wind.
So much less expensive.
http://www.42.co.nz/freeboard/
https://github.com/rob42
If you go the rasbian route, exercise caution with power supplies, powered hubs, multiple power sources, as you can easily burn this stuff out. I found the hard way to power everything with one source, mine NOW being a powered hub with no back feed. Remember NO usb port back feed. I'm still trying out this https://www.amazon.com/gp/product/B01ASVYJJS/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
It's all still on the "work bench". would have been installed alreaady had I not cooked it and then it sat waiting for a time investment to figure out what I did
Smart transducer for speed, depth, temp with nmea out DTST800: https://www.furunousa.com/ProductDocuments/DST-800PSF.pdf
http://faq.airmar.com/index.php?sid=2438364&lang=en&action=artikel&cat=3&id=41&artlang=en
Add a 484 to 232 converter (usb or not) to feed to a computer or some sort if you like. Other wise it's nmea in for any chart plotter, display, function, etc.....
It will usb in to a freeboard server direct. One does not have to use the freeboard plc.
another project:
Enhancing marine electronics with Rasberry Pi: http://www.themagpi.com/issue/issue-30/
King Tide Sailing
http://kingtidesailing.blogspot.com/
Last edited: