Possibly some new info on NMEA 2000 compatibility

[Liveto99]

I just was reading the whole thread and I don’t understand the technology. It was funny I never read something that sounded like the teacher in Charley Brown in my head before.
Wha wha mwa-mwa-mwa 2000 wha wha wha, 4 pin mwa mwa mwa

 

[Jim88G]

What about this?

Yamaha selects Garmin for new integrated marine display | Garmin Blog

.

www.garmin.com

 

[Scottie]

What about this?

Yamaha selects Garmin for new integrated marine display | Garmin Blog

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www.garmin.com

That's for Yamaha outboards only. It was introduced ba couple of years ago.

 

[wicked1]

I don’t care about being right. Truly I don’t. I am trying to save everyone time and money. I live and breathe code and data on a much bigger scale and complexity for a living and have been for 18 years. Proprietary pgns will not be read without something to parse, decode, and foward them. Yes a “gateway” could do that but why go through the trouble of writing code on two sides of the house for a proprietary pgn when the code is already written for non proprietary? Well to keep it proprietary is the only reasonable answer.

I clearly understand what you are talking about but it is any different for a Simrad G07? According to Simrad they said their unit along with a special connector and data cable would display that information? It is relatively cheap for the adapter and cable but why spend $50.00 if I am only going to get speed, water temp, not worth connecting the two for just that?

 

[Scottie]

I clearly understand what you are talking about but it is any different for a Simrad G07?

No different. Speed and water temp are available, but that is all. No other data matches nmea2k specs completely, so it will not be available to a "nmea2k compatible display", regardless of what Simrad says.

 

[Phil Goshen]

I built a custom canbus controller from an Arduino and MCP chip. I hooked it up to a laptop to parse out the NMEA serial data. Water temp, depth, and speed are all you will be able to get in standard N2K. The rest is proprietary N2K for Connext and the engine canbus is a separate Yamaha animal altogether . I did manage to decode the Connext jog dial commands on the proprietary side and did post that info in another post here. The NMEA 0183 going to the tach is the GPS antenna feeding into the tach which decodes it and outputs the speed. My goal was to build my own speed control system that plugged directly into the n2k connector and iterated the rpm cruise control buttons. I did it and it worked but not good enough. The 200 rpm steps and button iteration speed proved to proved to have too little resolution for smooth operation. I ended up buying Ridesteady. I don't want to discourage anyone from trying but unless you can build and code a controller to decode Proprietary NMEA and the proprietary Yamaha canbus for the jet boats which is different from their outboards I think it is pretty much a lost cause in the current crop of Yamaha jet boats.

I understand what your initial goal was but let me pose an alternative. Instead of trying create a device to control speeds, I think there is a very large market for those of us with pre-2015 boats that want to remove our tachs in place of putting a single screen in that shows the same info. If we scale the project to just creating a gateway module that interfaces and decodes the proprietary info into consumable NMEA2k standard format, I think it could be marketed to the masses. I would even help you with coding the project if you want to start something in github. Let me know if you are interested.

If you are not interested, perhaps you can share your schematic for creating the canbus controller. I am familiar with Arduino.

 

[natty]

Resurrecting an old thread here but curious if anyone has ever tried to use the Yamaha NMEA gateway for our boats. It's Yamaha part number 6Y9AD00000 and seems like it could be the piece to the puzzle that takes our engines and can translate all the info we want out to the newer plotters via NMEA. They are a few hundred bucks so I am not really interesting in buying one to test, but curious if anyone else has tried to use this? I haven't seen any other forum discussing this device uniquely so figured I would check.

 

[biffdotorg]

Resurrecting an old thread here but curious if anyone has ever tried to use the Yamaha NMEA gateway for our boats. It's Yamaha part number 6Y9AD00000 and seems like it could be the piece to the puzzle that takes our engines and can translate all the info we want out to the newer plotters via NMEA. They are a few hundred bucks so I am not really interesting in buying one to test, but curious if anyone else has tried to use this? I haven't seen any other forum discussing this device uniquely so figured I would check.

would that equate to one per engine I am assuming? ouch. It would be cool, but not that cool.

 

[lazergeek]

Resurrecting an old thread here but curious if anyone has ever tried to use the Yamaha NMEA gateway for our boats. It's Yamaha part number 6Y9AD00000 and seems like it could be the piece to the puzzle that takes our engines and can translate all the info we want out to the newer plotters via NMEA. They are a few hundred bucks so I am not really interesting in buying one to test, but curious if anyone else has tried to use this? I haven't seen any other forum discussing this device uniquely so figured I would check.

I beleive I saw on another thread somewhere that those were for the Yamaha Outboard Motors not the Jetboat Motors. Apparetnly Yamaha cant keep things universal...

 

[natty]

I beleive I saw on another thread somewhere that those were for the Yamaha Outboard Motors not the Jetboat Motors. Apparetnly Yamaha cant keep things universal...

This was my main concern but I hadn't seen that stated anywhere. I'd be willing to spend some money to get this all integrated, but still not sure why the engine didn't just stick to the standards in the first place.

 

[Sbrown]

Resurrecting an old thread here but curious if anyone has ever tried to use the Yamaha NMEA gateway for our boats. It's Yamaha part number 6Y9AD00000 and seems like it could be the piece to the puzzle that takes our engines and can translate all the info we want out to the newer plotters via NMEA. They are a few hundred bucks so I am not really interesting in buying one to test, but curious if anyone else has tried to use this? I haven't seen any other forum discussing this device uniquely so figured I would check.

That may or may not be the right item. That is a gateway module to translate from Yamaha Command Link or Command Link Plus to NMEA2k. There are many different communication protocols, and gateways are the devices that enable communication across protocols by acting as a translator, essentially. So we would need a gateway that can translate from whatever protocol Yamaha uses on our engines.

IF that protocol turns out to be command link plus, which it may very well be, then that gateway would work. If our protocol is anything other than command link plus, that gateway probably won't work.

Problem is, nobody wants to invest the money to find out and Yamaha is not very open about our system other than to say it's Connext. Now,it's possible that Connext itself may be the protocol, created, owned and used by Yamaha for our boats, just like Command Link and Command Link Plus is the protocol on the outboards. If that's the case, then someone just needs to create a translator (gateway) to translate from Connext to NMEA2k.

At least that's what I've been able to surmise based on a moderate amount of research.

 

[lazergeek]

It looked like this guy got NMEA 2000 working on his 05 by tying directly into the engine sensors in the harness with Albatross Alba-Combi analog to N2K dual engine monitor. This thread has the details https://jetboaters.net/threads/2005-ar230-dash-rebuild-instead-of-new-boat.28875/ Its a good idea if your desperate but seems like it would be more work then its worth to me.

 

[Stealth]

The gray 4 pin cap is the n2k. The main difference between nmea 0183 and n2k is the baud rate and becuase of the lower baud rate in nmea 0183 there is less data. Connext acts as a translator for all of the canbus protocols and the nmea 0183 is insterted in the n2k stream.

@Mainah So from your info it sounds like these boats already have a N2k bus, but other then depth, water temp, and speed (is that from the GPS?) everything else is put in non-defined PGN sentences, is this correct? How did you connect your laptop?

 

[natty]

@Mainah So from your info it sounds like these boats already have a N2k bus, but other then depth, water temp, and speed (is that from the GPS?) everything else is put in non-defined PGN sentences, is this correct? How did you connect your laptop?

The depth, water temp and speed all come from the transducer package which is airmar (I think). What I have been hoping to link in to are the things like the engine metrics and fuel levels. For me it's all about trying to get the data centralized in one unit as opposed to multiples though admittedly it's not a huge issue.

 

[Stealth]

The depth, water temp and speed all come from the transducer package which is airmar (I think). What I have been hoping to link in to are the things like the engine metrics and fuel levels. For me it's all about trying to get the data centralized in one unit as opposed to multiples though admittedly it's not a huge issue.

Yes I have the same long term goal, but trying to learn what is present first. The transducer outputs NMEA2k, what is it connected to on the other end? Is the transducer plugging into a backbone?

 

[natty]

Yes I have the same long term goal, but trying to learn what is present first. The transducer outputs NMEA2k, what is it connected to on the other end? Is the transducer plugging into a backbone?

Good question and I can't say I know for sure. My guess is that it goes directly to the connext unit and it acts as the collector of all the feeds from the engine, fuel, battery and transducer. I have never seen anything like a nmea2k backbone in the boat anywhere.

 

[Stealth]

Good question and I can't say I know for sure. My guess is that it goes directly to the connext unit and it acts as the collector of all the feeds from the engine, fuel, battery and transducer. I have never seen anything like a nmea2k backbone in the boat anywhere.

Thats interesting, my boat isn’t even delivered yet (3 weeks to go), I plan to poke a round in there and see if I can get to that data.

 

[lazergeek]

Thats interesting, my boat isn’t even delivered yet (3 weeks to go), I plan to poke a round in there and see if I can get to that data.

Since your getting an FSH the transducer data you would get is less then you would get from a Fish Finder since that would also give you dept which the FSH does not even have built in since they assume most people would install a fish finder.