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Thread: Instrumentation add-ons to frontend

  1. #1
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    Instrumentation add-ons to frontend

    I'm in the infant stages of laying out my setup.. I'm planning on a laptop based or micro-ITX based system. I'm not much of an "audiophile" so I'm not going to run a HU. I've searched it to death, and not running one seems to fit the bill for me.

    My question is - I'm curious to know what it would take to put Exhaust Gas Temperature (EGT) and Boost pressure on my frontend. I'm looking at an open source project - RoadRunner and it seems to have lots of aftermarket support. I have access to a pressure transducer which will output a 0-10VDC signal, but am not coming up with much in the way of controlling my "I/O". www.measurementcomputing.com sells a DAQ board with temperature inputs, (type K is what will be used if I remember right) but at $499.99 it's a little steep. I'm looking for some ideas on how this could be implemented, I'm completely gutting and redoing a 98' Dodge 2500 Cummins and since its been turned up (500+HP), instrumentation is a must have. I'd like to invest some money in my CarPC setup to do it rather than do mechanical style gauges, and I figured what better way to show off the power of my CarPC than to have boost & egt displayed on the frontend.

    Lemme know what you guys think, this site is an awesome resource!

  2. #2
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    Quote Originally Posted by SYRacing View Post
    I'm in the infant stages of laying out my setup.. I'm planning on a laptop based or micro-ITX based system. I'm not much of an "audiophile" so I'm not going to run a HU.
    You don't have to run a HU to get great sound...in fact, I refuse to run a HU because I want great sound... (there's a bit of sarcasm there mind you)


    My question is - I'm curious to know what it would take to put Exhaust Gas Temperature (EGT) and Boost pressure on my frontend. I'm looking at an open source project - RoadRunner and it seems to have lots of aftermarket support. I have access to a pressure transducer which will output a 0-10VDC signal, but am not coming up with much in the way of controlling my "I/O". www.measurementcomputing.com sells a DAQ board with temperature inputs, (type K is what will be used if I remember right) but at $499.99 it's a little steep. I'm looking for some ideas on how this could be implemented, I'm completely gutting and redoing a 98' Dodge 2500 Cummins and since its been turned up (500+HP), instrumentation is a must have. I'd like to invest some money in my CarPC setup to do it rather than do mechanical style gauges, and I figured what better way to show off the power of my CarPC than to have boost & egt displayed on the frontend.

    Lemme know what you guys think, this site is an awesome resource!
    You might consider posting this in the RR forum. Since you mentioned RR and all of the support for it (it's an open source front end), you might have better luck posting in there. If you want me to move the thread I can so you don't have to create another thread.

    Having said that, I did a quick google search for EGT USB and came up with this little device: http://www.performancetrends.com/The...e_Recorder.htm

    this one as well but it's a stand alone display: http://www.rscosworthspecialists.co.uk/products.html

    Just a few to get you started maybe?
    Jan Bennett
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    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  3. #3
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    Yeah if you could move it that would be sweet...

    Those solutions you posted are quite expensive....I can do it with the Measurement Computing Themocouple Input module, it has Analog in that I would use for the boost gauge, as well as 10 I/O for controlling other things... I would just need to write something in VB to display the values and have it run in the system tray or something, I would just need help importing those values into my frontend.

    If you think it will get more hits in the RR forum, that would be great!

    Thanks!

  4. #4
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    If you just want to display those values into RR, you can do it in various different ways... the most "organized" way is to make an Extension Plugin -- if that's too complicated for you, than make a separate application that just executes commands in RR to "SETLABEL" with your data (look it in skin commands.txt) to display the text you desire in the frontend.. there is a FAQ talking about all of this (Read Section 3 and 4 Specifically):
    http://www.mp3car.com/vbulletin/rr-f...cation-rr.html
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  5. #5
    MySQL Error MatrixPC's Avatar
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    Quote Originally Posted by SYRacing View Post
    My question is - I'm curious to know what it would take to put Exhaust Gas Temperature (EGT) and Boost pressure on my frontend. I'm looking at an open source project - RoadRunner and it seems to have lots of aftermarket support. I have access to a pressure transducer which will output a 0-10VDC signal, but am not coming up with much in the way of controlling my "I/O". www.measurementcomputing.com sells a DAQ board with temperature inputs, (type K is what will be used if I remember right) but at $499.99 it's a little steep. I'm looking for some ideas on how this could be implemented, I'm completely gutting and redoing a 98' Dodge 2500 Cummins and since its been turned up (500+HP), instrumentation is a must have. I'd like to invest some money in my CarPC setup to do it rather than do mechanical style gauges, and I figured what better way to show off the power of my CarPC than to have boost & egt displayed on the frontend.
    Take sometime and look into the FUSION BRAIN that discuss in the general forum. It has some analogue input that maybe useful for you. That board cost 10 times less than the one you mention and design with carPC oriented. I'm not sure it will do what you want but consider it as an 2nd option.
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  6. #6
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    Excellent! I will keep that in mind.
    I use the measurement computing boards here at work and I have a few spares with bad digital outputs that they wouldn't mind "donating" to my cause.

  7. #7
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    Excellent advice. I'm limited with skillios, but I think with all of the FAQs and stuff posted I shouldn't have a problem implementing my system.

    I've discovered a great way to convert my thermocouple (type K) to analog with this nifty little adapter located here: http://www.omega.com/ppt/pptsc.asp?ref=SMCJ&Nav=temk04
    And then, I've found this OTHER nifty device to control my analog inputs.. http://www.measurementcomputing.com/...LUWBB6DUJB2JC1

    I've programmed these modules at work, I'm not really scared of doing it, my experience with VB is VERY limited but I think I can fumble through it. I'm anticipating having to jam offsets into the scaling of the analog stuff so that it displays properly, etc.
    I program PLCs and HMIs for a living, so thats where lots of my hardware ideas came from.

    On a side note, I was looking at my potential install yesterday and noticed that there isn't a whole hell of a lot of room in my rig. It's a 98' Dodge Ram 2500 and it looks like cramming a 7" transflective is going to be a PITA. I want the install to look real clean, but there just simply isn't the space. I'm going to have to lose more sleep over this until I come up with a good solution to the touchscreen mount.

    Thanks guys!!

  8. #8
    FLAC ShawJohn's Avatar
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    This sounds like a good project, except the $599+ for the Thermocouple recorder

  9. #9
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    It will actually be much cheaper than that.
    See my above posted link to the USB-1208FS, $199.99 but I have a couple at work that they will donate to my cause...
    With the thermocouple to analog converter, I'm looking at $100, haven't checked pricing on my 0-100PSI pressure transducer..

  10. #10
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    Quote Originally Posted by MatrixPC View Post
    Take sometime and look into the FUSION BRAIN that discuss in the general forum. It has some analogue input that maybe useful for you. That board cost 10 times less than the one you mention and design with carPC oriented. I'm not sure it will do what you want but consider it as an 2nd option.
    And to top it off, we should have COM support too for a RoadRunner Extension already. So for $50, you cant really go wrong.
    Fusion Brain Version 6 Released!
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    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

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