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ECMlink OBD2 DIGITAL DASH WITH ECMLINK?

Posted by TheFlashDSM, Jun 29, 2020 at 12:34 AM

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  1. TheFlashDSM

    TheFlashDSM Supporting Member

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    so i want to use a digital dash for my drag car that displays some features.

    2g dsm
    not looking to use with ecmlink, just wondering if the ecmlink chip has an effect on the data output so that i wouldn't/would be able to use a tablet with a dashboard app?

    is this anything out there that i can plug into my obd2 (wired no bluetooth) that will show some monitors?
    not looking for a logger dash
    or
    a tablet with the proper cable?

    examples:
    https://www.xtremediesel.com/edge-8...7bUJBrhOyIjxhbsr8F-rs6rTyEgnQJ2BoCfR4QAvD_BwE
     

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  2. ThunderChild

    ThunderChild Supporting VIP

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    Why not just use a tablet or the like to display ecmlink?

    If you're not logging or anything the obd2 should still provide at least passive viewing for gauges etc.
     

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  3. rabenne

    rabenne Proven Member

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    Your post is confusing. What are you trying to do? OBD-II is slow and not great for live data... You can surely make something like that work, but the data you can pull from it likely isn't going to be all that useful.

    What is your goal here?
     

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  4. Vegas smith

    Vegas smith Proven Member

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  5. rabenne

    rabenne Proven Member

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    Vegas, he's talking about effects of the ecmlink chip on the outgoing data, so I think he's on a stock-ish ecu setup with ecmlink in it.

    If that's not the case, OP, please clarify. I am still not entirely sure what you are trying to do... You said you want to use a "digital dash" but not a "logger dash"? If you can be more specific it might help us give you suggestions...
     

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  6. rabenne

    rabenne Proven Member

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    This pic shows two solutions for what you are describing... one of them doesnt require ECMlink. It only logs/displays data for which it has its own sensors to collect it from. In this picture I am in the timed run mode, so its a poor example of the data display capability, but you can research it from here if it looks interesting... The defi only ties into the ecu for a tach and speedo signal.

    The ecmlink setup is running on a raspberry pi, and standalone 8" hdmi touchscreen monitor.

    [​IMG]
     

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  7. rabenne

    rabenne Proven Member

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    Here is a better shot of some live data...

    20191008_061614.jpg
     

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  8. TheFlashDSM

    TheFlashDSM Supporting Member

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    the car will be a drag car, and street driven sometimes, i want to use a tablet for a dash. i wanted to make sure that the outgoing data will still work from the obd2 port even though i have a v3 chip in the ecu.

    i want to do this

    1999-nissan-skyline-GT-T-tablet-PC-gauge-cluster-09.jpg
     

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  9. TSiAWD666

    TSiAWD666 Freelancer

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    When I asked Tom Dorris, owner of ECMLink, in 2014 about whether ECMLink impacted obd2 data streaming he said no. So I think you'd be good. However, I've never personally done it. I know our obd2 data rate is abysmal compared to modern ECUs and I'm pretty sure you're going to find the resulting dash gauges won't look that great due to a slow update rate.

    I have done what you have pictured but it required an external datalogger to do it (in my case a $600 RaceCapture Pro + tablets). I am dicking around with cracking the data stream so I can send it to something else like the Real Dash app on Android/IOS but I'm only poking around the java at the moment and have no clear cut solution.
    IMG_0247.JPG
     

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  10. TheFlashDSM

    TheFlashDSM Supporting Member

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    yes i have messaged you about this a few weeks about your setup, you would need something very quick responding for your circuit car, but since mine is for drag racing would the delay be okay? or is it a server delay, like seconds or milliseconds? im using a rpm tac regardless, i just want the tablet for the other parameters, a/f, temp, oil, boost/vac ect
     

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  11. TSiAWD666

    TSiAWD666 Freelancer

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    If I recall correctly (and this is coming from when I played with the 2g obd2 implementation in the early 2000s) data rate varied depending on how many data elements you were requesting, and with even a small amount things like RPM were updating very slowly like... twice per second? I don't know, I just remember I felt it was unusable for anything even a dashboard so I dropped the idea of trying to use it. It's cheap enough these days to get an odb2 bluetooth reader and connect to an android app so maybe... try it?
     

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  12. TSiAWD666

    TSiAWD666 Freelancer

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  13. TheFlashDSM

    TheFlashDSM Supporting Member

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    okay i will be purchasing this app, and a usb to obd2 cable, and a Bluetooth obd2 adapter as well to compare the too,
    i will be wiring the usb to obd2 cable directly into the harness that way it can still monitor to tablet and leave obd2 plug open for ecmlink cable

    http://realdash.net/index.php

    i will report back with my findings!!!
     

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  14. TSiAWD666

    TSiAWD666 Freelancer

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    Real Dash is pretty awesome. If I can crack ECMLink's data stream I plan to play with it.
     

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  15. TheFlashDSM

    TheFlashDSM Supporting Member

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    send real dash a message on there site and see what protocol ecmlink uses for data streaming from the obd2 cable, that way the cable can be used with a tablet for realdash, have them call eachother LOL
     
    Last edited: Jun 29, 2020 at 9:18 PM

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  16. TSiAWD666

    TSiAWD666 Freelancer

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    I randomly ran across this just now:
    http://www.spleinonen.com/catalog/dashbox/

    Will let you get much higher data resolution since you won't be as limited by our obd2 implementation. A lot more work and money, but overall a better solution, and compatible with RealDash. I know if I was driving my Eclipse on the street I'd try this out.

    Note, if you do get this working, I wrote up how to automate a tablet to turn on and go to sleep based on power provided over USB which you'd link to the car's ACC power. You'd have to tweak this for your Real Dash but that's really trivial, and can leave out the wifi enabling and airplane mode automation.
    https://wiki.autosportlabs.com/RaceCapture_Dashboard_Tablet_Automation
     

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  17. TheFlashDSM

    TheFlashDSM Supporting Member

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    okay that dashbox is sick, i will deff look into that more and see if someone local has something similar, but my BT elm327 showed up today, so ill be abe to try out realdash, im using an ipad pro 11 cuz thats what i have right now to test it with, then i will use a android or windows tablet when im ready
     

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  18. TheFlashDSM

    TheFlashDSM Supporting Member

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    @TSiAWD666 okay so i got in the mail today my Bluetooth obd2 scanner, yea so it was the wrong one for an ipad, but any way. i wanted to know if you could help me here. so that link you sent in the above post is exactly what im looking for, something that splices in directly to the sensors (but not a $1400 digital display), but do you think it would provide a fast accurate response to a table/pc, considering its Bluetooth? or can you help me find another that does the same thing, splice into my sensors and provides a usb connection to maybe a raspi or a tablet, for a much faster response?
     

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  19. TSiAWD666

    TSiAWD666 Freelancer

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  20. TheFlashDSM

    TheFlashDSM Supporting Member

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    do you think ecmlink data connector would work with real dash? bc that would be cool, actually im gonna try to see if it done today ahahha
     

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  21. TSiAWD666

    TSiAWD666 Freelancer

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    No I am sure it won't.
     

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