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Old 02-01-2016, 11:56 AM   #101
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Rather than bother with a RPi, why not do a Corona SDK lua app that queries the Arduino over the internet for a string to be parsed and displayed on the screen of a tablet?

I assume you can do IP socket communications with an ethernet shield? or is it native on your arduino?
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Old 02-01-2016, 12:09 PM   #102
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By using Corona SDK, you can make an app for different devices (even apple TV now).
https://coronalabs.com/

For small scale users as this would be, it's free for the dev kit, not like it used to be.

Here is an example on how to do TCP/IP and UDP communications with another device, which could be an Arduino.

https://coronalabs.com/blog/2014/09/...r-with-udptcp/

All you would need is to know the IP address of the Arduino.
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Old 02-01-2016, 01:26 PM   #103
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At this point the easiest and most flexible way to get the Arduino on the network is to hang the RPI on it. The arduino wifi sheild uses several pins, is not cheap, and is pretty limited with it what it can do.

The Arduino has no networking ability built in.
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Old 02-01-2016, 02:58 PM   #104
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Djones44,
How are you with ios apps? Initially I was thinking this would just display engine data, but the RPI puts media, reference data, and all kinds of capability right out there.

Do you have an app for your enclosure, or is just for keeping it dry?. Are you planning on having it join an AP on the boat?

We should work together, I can focus on the integrations and data, if you want to make it look purrty
The Poort is simply an iPad enclosure, horizontal or vertical, with no associated apps as yet. Lard Jayzus, ain't they enough for the 'Pad already??

I'm a longtime Windows developer, but have no iOS plans. As a former IBM clone builder too (Cardz) I think I've supported enough hardware for one lifetime. ;-)

That said, I do plan to invite a coterie of impressionable youths (relatively) onto my boat to try their hand at boat instrumentation and WiFi data games. I was much influenced by the motivational speeches of T. Sawyer and Major Hoople.
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Old 02-01-2016, 03:36 PM   #105
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So, the RPi will talk to the Arduino over serial?

Redpark has a serial to iPad cable (even an option to charge the iPad in the process).

Is what you're doing tying up the ports used for an Ethernet shield?
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Old 02-02-2016, 10:28 AM   #106
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Please forgive my ignorance; I don't understand all the technical stuff that's been discussed but the project sounds awesome. If Arduino is being used, could the sensor system be integrated into something like this? http://www.cruisersforum.com/forums/...ct-152754.html
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Old 02-02-2016, 02:18 PM   #107
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Panhandler, thank you x1000 for the link. This is a perfect system to integrate. I posted on their forum about this project.

Stu,
There are two pins on the Arduino that talk serial. These are connected to the GPIO pins on the RPI. I made up a sentence that has all the sensor readings and it's returned to the RPI over the serial connection. Then a python library queries the GPIO pins and parses the data and returns HTML. I'm currently integrating some sexy analog guages for the iPad or any other browser.

I looked at using SignalK but it's a bit complex.
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Old 02-03-2016, 12:39 PM   #108
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Panhandler, thank you x1000 for the link. This is a perfect system to integrate. I posted on their forum about this project.
Great! Sounds like it could be an awesome and groundbreaking system when running and integrated. Can't wait to see it! Wish I had some expertise to donate...
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Old 02-21-2016, 07:26 PM   #109
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A possible interface for the device?

Samsung announced a car modem today that connects to your OBD diagnostic port on your car and full LTE.

Now this can do a lot of things, but for our purposes I like the claim that it "lets drivers monitor their vehicle's performance as well as locate it."

So the question becomes: how can our boat engine(s) talk to this device, via the car software interface? And can we adopt that module for our application? Moderate it with an iPad app?

My project is to get the engine data up into WiFi, parsed into the cars' onboard electronics, adopting their receiver SDK, and then feed the iPads from there.

And have that bandwidth to burn, see things with little latency.

Dwight
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Old 09-20-2016, 09:25 PM   #110
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I stumbled onto this thread while searching the net for Arduino and
"Engine monitoring" topics. I joined the forum so I could post.
I read thru all 6 pages with ever increasing interest only to find things
had ground to a halt 8 months ago. Seems to happen all too often on the internetz.
What happened? Is this topic/project dead or suspended?

I'm not a boat guy so maybe my application would be considered off topic? I'd be very interested in this project to monitor similar conditions on a large diesel air compressor. It seems adaptable. Strictly for use by only me in my shop.

Dan
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Old 02-13-2021, 03:41 PM   #111
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Has this materialized into anything? I have been looking around the web and see these types of projects die off.
Please if this project has continues elsewhere I would like to be apart of it.
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Old 02-13-2021, 05:42 PM   #112
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It's dead I fear
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Old 02-13-2021, 08:49 PM   #113
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Thank you for responding. Do you know from your research anything about products like Noland (RS11), Actisense (ECM-1), maretron if these device are any good. Some claim to read voltage/ resistance from existing sensors to be displayed on a gps screen such as Garmin units. Also, some read engine computers (MEFI 1) and translate it to Nema2000.

Do you know if these work or know of any direction to look in?
Thanks again
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Old 02-13-2021, 09:16 PM   #114
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Sorry, but not familiar with any of the products you mentioned
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Old 02-13-2021, 09:44 PM   #115
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Since the original point of the thread is largely dead, I will comment at the risk of being criticized for causing drift.

I have made lots of Arduino devices and find them to be very powerful, particularly when combined with 3D printing for appropriate enclosures, etc., and CNC cutting of PCBs for convenient shields.

I have a Maretron network monitoring my Cummins engines (whose data is output on a J1939 Canbus, and converted using a Maretron device to N2K, which is the protocol used by the Maretron network). The problem is that although my engines output instantaneous fuel burn data, they don't output total fuel burn data, while the Maretron Display won't totalize the burn. Although Maretron does make a device that will put out total burn (or other flow), it requires physically connecting to the fuel lines. So, I am planning an Arduino-based device to "listen" to the N2K bus for the Cummins data (the specific PGN for flow rate), totalize then the "talk" the appropriate PGN for total burn.

I am happy to share my results, but perhaps someone knows an easier way?
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Old 02-14-2021, 07:28 AM   #116
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Amazing , more responses than a " my anchor is better than your anchor " thread.

Not being up on the electronics hobby,

I will stick with my pure mechanical Murphy Switch Gauges to secure the engine if an out of normal situation arises,even after a lightning strike.

Ain't just messing around with boats grand?
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Old 02-14-2021, 09:32 AM   #117
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Quote:
Originally Posted by Priobe View Post
Thank you for responding. Do you know from your research anything about products like Noland (RS11), Actisense (ECM-1), maretron if these device are any good. Some claim to read voltage/ resistance from existing sensors to be displayed on a gps screen such as Garmin units. Also, some read engine computers (MEFI 1) and translate it to Nema2000.

Do you know if these work or know of any direction to look in?
Thanks again



I, and others, have quite a bit of experience with the Maretron equipment. What are you hoping to do?
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Old 02-15-2021, 02:30 PM   #118
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I have used an Alba-Combi to convert discrete inputs (voltages and resistances) from a pair of FL120 engines into N2K data. Once it's on the N2K network, you can do a lot of things to display it, including custom displays if that's what you are wanting to do. There are phone apps, PC apps and probably stuff for Linux if you want to use a Raspberry Pi or something for display. You can also use any of the 4" style multi purpose N2K LCD displays by Maretron, Furuno, Garmin, etc...

The install I did, the data is displayed on a set of Simrad MFDs, but the Alba-Combi has a built in web server that allows configuration of the device from a browser and display of some basic dash board data on any tablet/pc that you want to use, that's what set it apart for me to choose it over some of the competitors products. The documentation isn't very good, but it's not too hard to figure out. The one thing that is glaringly lacking is that they don't tell you that to switch an input from voltage mode to resistive mode you have to take the top off and flip a DIP switch for the channel you want to change. There's also a very limited set of pre-configured sensors so you'll probably need to calibrate them manually when you set it up the first time. (I did so)

I've found it to be reliable, apart from the Simrad MFDs occasionally choosing to stop displaying N2K data for no particular reason and needing to be reset before they display it again. It appears they are choosing non-existent phantom sources mid-use and reconfiguring themselves automatically occasionally for no apparent reason. A power off/on of the Simrad device fixes it. My guess is that occasionally the network has an error and the Simrad devices are 'auto selecting' all the time and decide to 'auto select' some data that doesn't exist, but then never bothers to 'auto select' back to the real source once the error has passed.

If you are wanting to make your own displays with N2K based dashboard software I think a device like the Alba Combi along with a N2K to Wifi/Ethernet bridge is a good choice to get the data onto the network, the only limitation is their selection of PGMs, you'd want to be sure it has the ones you want. At some point, I plan to use an Alba Combi to convert my older Detroit diesels to electronic instrumentation displays.
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Old 03-07-2021, 09:24 AM   #119
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I, and others, have quite a bit of experience with the Maretron equipment. What are you hoping to do?
I am looking to convert my existing gauges and adding water pressure and oil temp to a echo map via NEMA2000.
I receive mixed information from Garmin as to what PGN they support such as water pressure. Looking at the simulator mode water pressure is displayed. So does it or does it not support pressure reading. Also, what separates these gateway such as Maretron from the rest.
Im trying to avoid spending money only to find out its misleading information as to what I see in the Garmin.
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Old 03-07-2021, 11:39 AM   #120
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Quote:
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I am looking to convert my existing gauges and adding water pressure and oil temp to a echo map via NEMA2000.
I receive mixed information from Garmin as to what PGN they support such as water pressure. Looking at the simulator mode water pressure is displayed. So does it or does it not support pressure reading. .....


Im trying to avoid spending money only to find out its misleading information as to what I see in the Garmin.

In many Garmin manuals they list the supported PGNs. Here is a link to one example:



https://www8.garmin.com/manuals/webh...B7E7D894E.html
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