Category: Network & control

DY NMEA 0183 to USB, looks handy 16

DY NMEA 0183 to USB, looks handy

Digital_Yacht_USB_NMEA_0183_Adaptor.JPG

That’s Digital Yacht’s just announced NMEA 0183 to USB adapter, all of it, and it’s just $49.  Wire it to a multiplexer, AIS, or some other 0183 RX/TX port and any 0183 message will purportedly be seen by software running on the attached computer.  The adapter has LEDs that flicker for transmitted and received data, and it can be set to either 4,800 or 38,400 baud. The included software is said to work with PCs, Macs, and even Linux-based systems, and there’s a bonus…

NMEA 0183 over Ethernet, on Mar Azul 25

NMEA 0183 over Ethernet, on Mar Azul

Mar_Azul_NMEA_0183_diagram_courtesy_Bob_Ebaugh.JPG

Bob Ebaugh got some GX2100 installation help over on the forum, and that gave me a chance to bug him for some more information on the interesting system he’s put together. Check it out above: two laptops connected wirelessly and simultaneously to MFD, AP, VHF/rxAIS, and Internet. Bob’s a pilot and ex-networking engineer who didn’t think he could write up the project well, but I think he did just fine…

HYMAR, can Nigel find the electric drive grail? 17

HYMAR, can Nigel find the electric drive grail?

E motion components page.jpg

I remember getting excited about Solomon Systems’ regenerating electric sail boat motors at the 2004 Annapolis show, but I never hear about the technology today.  Then in late 2006 I got stoked about the Ossa Powerlite diesel electric system, and even dreamed of having one in a Maine Cat P45 (which went on to become the great P47).  But Maine Cat dropped the idea after testing it on the prototype, and the Ossa web site today shows about the same few customers it showed back then.  Designing a truly practical electric drive system for cruising-size boats, great as it sounds, is clearly not easy.  However, Nigel Calder did his homework on these systems all along — and often was properly skeptical when others, like me, were infatuated — and now he’s put together an A list of companies and earned a $3,000,000 EU grant to develop hybrid marine propulsion. How cool is that?

Alba Analog Adaptors, the screenshot show 13

Alba Analog Adaptors, the screenshot show

Alba_NMEA_sensor_boxes_cPanbo.JPG

NMEA 2000 has been working well on Gizmo this summer, making it easy to get heading, wind, depth, GPS, and more to all the MFD systems I’ve been testing.  AIS over N2K has some issues, but then again the Garmin VHF 200 is good evidence of what’s possible.  However, I’ve just begun to explore how NMEA 2000 can integrate Gizmo’s engine, tanks, batteries, and other non-navigational systems. A few weeks ago, for instance, I plugged an Albatross demo case into the boat’s backbone to see how data from those three Analog Adaptors above would display…

Maretron’s N2KBuilder, better than sliced bread? 10

Maretron’s N2KBuilder, better than sliced bread?

N2KBuilder_showing_prelim_Gizmo_install_cPanbo.JPG

Actually I like to slice bread myself these days, but, man-o-man, Maretron’s latest gift to the world of NMEA 2000 is one brilliant invention.  N2KBuilder — which is free, and downloadable right now — would be handy if it just let you easily mock up a proposed network.  But it does much, much more than that.  As you drag and drop cables, connectors, and devices, N2KBuilder keeps an eye on total cable lengths, amperage loads, and the resulting voltage drops, and alarms you if you’re over the limits.  It also keeps track of backbone integrity and plug genders, and all the while builds a system database from which it can produce various valuable reports, and even a bill of materials (BOM)…

NMEA 2000 opens up, in a Dutch attic! 11

NMEA 2000 opens up, in a Dutch attic!

KEES_N2K_sniffing_station_courtesy_yachtelectronics_blogspot.JPG

I love this photo.  It may look messy, but not only is one man’s fine N2K+++ yacht system being tested here, but the standard itself is getting explored, possibly to the benefit of many boaters.  This is Kees Verruijt’s attic somewhere in the Netherlands and, as explained on his new Yacht Electronics blog, that Commodore PET is the “PC” he first learned programming on back in 1979.  The rest of the gear is going on Merrimac II, a Stadship 56 now under construction that Kees and his family have obviously put a lot of thought into.  Kees wants to extend the usefullness of his NMEA 2000 data system, even to his iPhone, and he’s had to go to some serious trouble to do so…