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Digital Gauges [message #348214] Fri, 20 September 2019 21:16 Go to next message
Jp Benson is currently offline  Jp Benson   United States
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Registered: October 2011
Location: Fla
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My digital gauge display is (finally) working. With data logging. I've posted some pics on the photosite. Excuse if there are still multiple copies of some pics. The photosite has some trouble mogrifying (no kidding) some of the larger images and others were inadvertently repeated. Will fix later.

http://www.gmcmhphotos.com/photos/dashboard/p66698-laptop-display.html
http://www.gmcmhphotos.com/photos/dashboard/p66693-engine-temperature.html

JP

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Re: Digital Gauges [message #348226 is a reply to message #348214] Fri, 20 September 2019 23:34 Go to previous messageGo to next message
mghamms is currently offline  mghamms   United States
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Very nice.

Now I have an unused Ipad.
Think there may be a way to use it?

1977 Kingsley 455 as stock as it gets except lots of Ragusa parts

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Re: Digital Gauges [message #348235 is a reply to message #348214] Sat, 21 September 2019 08:15 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
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Suave.
The units on the graphs need a bit of tweaking.... Smile It looks as if this would easily be able to provide the same alarm functions as my DigiPanel, wouldn't it?

--johnny

Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell

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Re: Digital Gauges [message #348239 is a reply to message #348226] Sat, 21 September 2019 08:46 Go to previous messageGo to next message
Christo is currently offline  Christo   United States
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If your iPad Mini has the cellular option, it makes a good GPS. It's also possible to add a GPS receiver via the lightning port or possibly via Bluetooth. I have mine in a dash mount and also use it as part of my TPMS system.

Christo Darsch
GMC Nor'easters
1977 Eleganza II - "The Komet"
3.50 Power Drive, Disc Brakes, Alcoas
Weymouth, MA

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Re: Digital Gauges [message #348250 is a reply to message #348239] Sat, 21 September 2019 10:20 Go to previous messageGo to next message
Jp Benson is currently offline  Jp Benson   United States
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Location: Fla
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The Ipad and most other tablet computers should work. The dashboard software is Java based which theoretically runs on any computer. I used the Raspberry Pi 3B as it costs $35 plus $110 for the monitor. Real cheap for a real computer. The real cost of the RPi 3B was getting it properly configured. I can now upgrade to the RPi 4 ($55) which is 3X faster with 4X memory.

Johnny,
It's still in the prototype stage. I'm using VDO senders since they provide data to convert ohms to temperature/pressure. The purpose for plotting ohms now is gauge calibration. Then I'll make some LUT's and convert the output to more user friendly units. Once calibration is finished then add alarms (audible and/or visual) for when things go out of range.

JP

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Re: Digital Gauges [message #348255 is a reply to message #348250] Sat, 21 September 2019 11:08 Go to previous messageGo to next message
Bill Van Vlack is currently offline  Bill Van Vlack   United States
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For an example of a front end for gauge creation, check out WinLog. For displaying gauges for your EBL fuel injection system, check out WinLog-EBL

Bill Van Vlack '76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath, Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o mid November 2015.

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Re: Digital Gauges [message #348276 is a reply to message #348255] Sat, 21 September 2019 15:46 Go to previous messageGo to next message
Jp Benson is currently offline  Jp Benson   United States
Messages: 649
Registered: October 2011
Location: Fla
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Quote:
For an example of a front end for gauge creation, check out WinLog. For displaying gauges for your EBL fuel injection system, check out WinLog-EBL
That's a nice software package. User configurable, free and it works on Windows computers. Mostly for O2 sensors. The one link for an "engine management" interface was defunct. If someone made an interface that connected to other engine sensors they could compete with Dakota Digital. For that purpose I'm using an Arduino board configured with a bank of voltage dividers. It's convenient in that it connects with a USB cable and communicates via serial interface.

JP

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Re: Digital Gauges [message #348288 is a reply to message #348276] Sat, 21 September 2019 17:11 Go to previous messageGo to next message
Bill Van Vlack is currently offline  Bill Van Vlack   United States
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More on WinLog.....
I worked with the developer of the WinLog software and the developer of the DynamicEFI EBL system to create a driver that takes the GM throttle body fuel injection system serial data stream used by the DynamicEFI 'What's up display' and configures it to work with WinLog (that driver is not part of the downloaded package, but is available on the WinLog-EBL site).

The WinLog developer provides a model for users to create their own driver using Windows Visual Studio, so any device - a raspberry pi, for example, that can send out a serial stream can be used as input. There is a companion 'WinLogView' program that provides data log and matrix views.

The WinLog system can collect more than one serial stream at a time as long as they input to separate USB ports.

Bill Van Vlack '76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath, Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o mid November 2015.

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Re: Digital Gauges [message #348293 is a reply to message #348288] Sat, 21 September 2019 17:42 Go to previous messageGo to next message
Bill Van Vlack is currently offline  Bill Van Vlack   United States
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Registered: September 2015
Location: Guemes Island, Washington
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Even more on WinLog.....

The gauge display can be scaled to convert A/D bits to real numbers, either with a paired list for non-linear sensors or with two data points for linear sensors. Virtual gauges can be created that use one or more gauges and math to display - whatever you can think of -. You can also include math in the C++ driver to do the same thing.

I haven't tried it, but it offers triggered audible outputs as well.

The driver was developed and troubleshot by Randy Van Winkle and I, with Randy doing all of the field testing. At his suggestion we added three miles/gallons/mpg trip meters. The WinLog developer was very generous with his time and enthusiastic about the project. For that reason, we are encouraging folks that use his software and our driver on their GMC Motorhome to spend the 30 bucks and register it.



Bill Van Vlack '76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath, Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o mid November 2015.

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Re: Digital Gauges [message #348294 is a reply to message #348288] Sat, 21 September 2019 17:44 Go to previous messageGo to next message
Jp Benson is currently offline  Jp Benson   United States
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Registered: October 2011
Location: Fla
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Bill,

The Raspberry Pi is the front end computer that drives the display. In your system a Windows computer serves that function. A properly configured Arduino board could interface with other vehicle sensors. It connects via USB and can be programmed to stream serial data on command. Then you're good to go. There's also another controller board called Controllino which works with 12V inputs. I'm using 5V USB power to drive the sensors.

JP

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Re: Digital Gauges [message #348308 is a reply to message #348294] Sat, 21 September 2019 19:18 Go to previous message
Bill Van Vlack is currently offline  Bill Van Vlack   United States
Messages: 419
Registered: September 2015
Location: Guemes Island, Washington
Karma: 14
Senior Member
Ah.... the Ardunio then, as the serial stream generator. I think I'm OK with the EBL. It comes with eight analog imputs, so that plus the other 50 or so points native to the EBL package and we have enough to chew on for now. I would like to have a date/time display on the screen at some point, however.

Bill Van Vlack '76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath, Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o mid November 2015.

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