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Thread: Holden WL / VZ Caprice GENIII LS1 - Slow Build Follow - Some Tech Info

  1. #11
    Newbie trigge's Avatar
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    mayhem,

    I have a carputer installed in a 2001 Commodore S, if you require any info or want to know problems I have found with installing in a Holden feel free to drop me a line. Keep posting pics with updates, you might give me ideas for change in mine..

    Regards,

    Scott

  2. #12
    Variable Bitrate mayhembdm666's Avatar
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    Hey trigge,

    I think the main thing i want to find out or just confirm are the pins on the ecu connector under the steering wheel. I need to double check but from what i remember hearing is it that it still talks the ALDL stream but using a obdII socket/plug

    I really am hoping it is OBD2, But thinking about the update speed of the trip computer says otherwise.
    2004 Holden WL Caprice Auto GENIII
    Base System = Raspberry Pi
    Everything else is pending for now as switched from a Mini-ITX setup

  3. #13
    Newbie trigge's Avatar
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    Mayhem,

    You need to investigate further for the protocol that the ECU talks as there was a changeover period for the commodores from ALDL to OBDII very close to your year model car. Also there may be different changeovers depending on V6 or V8 as well.

    I started to get into the ECU display feature of Ride Runner but halted that when I moved to NT. From my experience it was easier to get a pre made plug and find the software.

    Hope you figure out the ECU protocol as it would be good info to put on the screen.

    Regards,

    Trigge

  4. #14
    Variable Bitrate mayhembdm666's Avatar
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    The one and only part I have never liked about a CarPC is the removing the head unit unless something slots perfectly in place of it, In saying that "Now" the replacement fascia is available in the shop.... But lets see what i can do with this one for now...

    The current setup is with the Screen hacked and packed into the original radio bracket with a little help from plastic putty, Room will be made for a replacement IR Receiver and possibly a power button depending if I try to automate the IR/Buttons on the Touchscreen itself.



    Original Blaupunkt Stereo / Pinout




    Replacement Items


    Last edited by mayhembdm666; 04-18-2012 at 02:46 AM.
    2004 Holden WL Caprice Auto GENIII
    Base System = Raspberry Pi
    Everything else is pending for now as switched from a Mini-ITX setup

  5. #15
    Variable Bitrate mayhembdm666's Avatar
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    Holden GENIII V8 Serial UART Information

    Just adding this post for future reference in the way of the serial connection side of things.

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    Last edited by mayhembdm666; 01-05-2012 at 01:54 AM.
    2004 Holden WL Caprice Auto GENIII
    Base System = Raspberry Pi
    Everything else is pending for now as switched from a Mini-ITX setup

  6. #16
    Variable Bitrate mayhembdm666's Avatar
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    Arduino / Blaupunkt 679 Stereo UART Connection

    Okay so for the fun of it, I decided to start playing around with the original stereo (Blaupunkt 679 / 6 Stacker) as i figured this might be one path to check for being able to set the time on the top centre LCD which shows items like the air con and so on.. And the amount of people who keep telling me the time is wrong is starting to drive me nuts. So.... See if i can read the commands from the head-unit and then send them back to the car itself...

    At the moment I'm just reading the head-unit itself and seeing what is what... but its fairly hard to tell without a display and will be a day or two before I bother with trying the UART connection in the car.

    Using this sketch:
    Code:
    #include <SoftwareSerial.h>
    SoftwareSerial mySerial(2, 3);         //rxPin, txPin  (Only used rxPin with common ground)
    void setup() {
        Serial.begin(4800); 
        mySerial.begin(4800);
    }
    void loop() {
        if (mySerial.available()) {
            Serial.println(mySerial.read());
        }
    }
    So anyway this is something that I figured might help with quickly adapting old functions from head-units or may time directly into general commands that will be used.. ? Now just to get the 8192 side of it
    Last edited by mayhembdm666; 01-16-2012 at 12:39 AM.
    2004 Holden WL Caprice Auto GENIII
    Base System = Raspberry Pi
    Everything else is pending for now as switched from a Mini-ITX setup

  7. #17
    Variable Bitrate mayhembdm666's Avatar
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    Arduino / Prototype Board

    This section will be to follow the design and circuit(s) used on a prototype board for the Arduino which in most part will be the main shield design.. Allowing for quick and easy replacement of a dead Arduino during testing...Hmmm pricey when the wrong wire touches..

    Current Circuits on Shield Design:
    * Monitor Buttons
    * Steering Wheel Controls
    * TV Output using (arudino tvout)
    * IR Receiver for Remotes


    ** Forgive the messy work, Like i said... Testing stages on most things..
    Last edited by mayhembdm666; 01-23-2012 at 04:26 AM.
    2004 Holden WL Caprice Auto GENIII
    Base System = Raspberry Pi
    Everything else is pending for now as switched from a Mini-ITX setup

  8. #18
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    I like it! Nice and clean...

    What kind of speakers and configuration are you planning on in the final audio 5.1 setup?
    Last edited by Paulloyd; 04-27-2012 at 12:50 PM.

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