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Tutorial Arduino RevBurner driving a tachometer.

Discussion in 'DIY peripherals' started by jamesdio, Oct 11, 2014.

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  1. Tonantsa

    Tonantsa New Member

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    For example Dirt Rally.

    The problem is to get HEX value ten times greater and because they are not decimals, formula math * 10 doesn't work.
    Tonantsa, Jun 23, 2015
    #21
  2. value1

    value1 Nerd SimAxe Beta Tester SimTools Developer Gold Contributor

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    • Informative Informative x 1
    value1, Jun 23, 2015
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  3. Subash

    Subash New Member

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    Hey Dude I am So suprised with your work
    I Have a Arduino Uno Can you tell the me steps to set a tachometer and some leds for my Dash project
    What is the game your using for this tachometer................and is there are any plugins to be added
    Thank You
    Subash, Jul 25, 2015
    #23
  4. Subash

    Subash New Member

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    Hey what is that Game dash Software Can you send me the link
    Subash, Jul 25, 2015
    #24
  5. 741852cp

    741852cp Member

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    出色的工作，谢谢。大拇指
    741852cp, Jul 26, 2015
    #25
  6. 741852cp

    741852cp Member

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    :thumbsExcellent work, thank you.
    741852cp, Jul 26, 2015
    #26
  7. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    RacingMat, Jul 26, 2015
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  8. Aris

    Aris New Member

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    Aris, Jul 31, 2015
    #28
  9. kieranjones39

    kieranjones39 New Member

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    Hi, just tried building this up but I keep getting "the interface connected to com3 is not detected" I have confirmed my arduino is on com3 and have adjusted the baud rate to 19200, any ideas? Thanks
    kieranjones39, Aug 11, 2015
    #29
  10. jamesdio

    jamesdio Member

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    Please describe your situation in detail with screenshots or videos.
    • Agree Agree x 1
    jamesdio, Aug 11, 2015
    #30
  11. kieranjones39

    kieranjones39 New Member

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    Thanks for the reply, I will try and sort some screenshots out shortly.
    • Like Like x 1
    kieranjones39, Aug 11, 2015
    #31
  12. jamesdio

    jamesdio Member

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    Here are new videos.





    The needle fluctuation still exists.
    I'm going to add smooth filter code to remove needle jitters.
    • Like Like x 4
    • Winner Winner x 1
    jamesdio, Sep 23, 2015
    #32
  13. Tonantsa

    Tonantsa New Member

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    Tachometer doesn't work anymore and I have no idea how to fix that :(

    Arduino connects Game Engine and Game Dash normally but tachometer doesn't do anything.

    Jamesdio, could you measure some voltages: the one that comes from Arduino and actual tachometer signal. I could compare them to my values and find out something :think

    Both Arduino and tachometer are cheap China stuff so the problem could be anywhere.
    Tonantsa, Nov 19, 2015
    #33
  14. jamesdio

    jamesdio Member

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    Hi Tanatsa,

    Had your tachometer worked then suddenly stopped working?

    The voltage levels are variable associated with RPM value.

    The one will be between 0V and 5V on Arduino signal. (pin9 on the diagram)
    Another will be between 0V and 12V on Tachometer signal. (green/white line on the diagram)

    These values will be changing as rpm is going high and low.

    Hope this helps.
    jamesdio, Nov 20, 2015
    #34
  15. Tonantsa

    Tonantsa New Member

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    Now I feel ashamed :roll

    I had wrong settings in Gamedash. Managed to get it work again. Nothing wrong in schematics.
    Tonantsa, Nov 22, 2015
    #35
  16. jamesdio

    jamesdio Member

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    Good to hear that It's working. :)
    jamesdio, Nov 23, 2015
    #36
  17. Tonantsa

    Tonantsa New Member

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    I have huge delay in my tachometer (cheap ebay stuff). Is there any ways to remove lag and get it working like Autometer :cool:.

    Is the problem Arduino sketch related or is it tachos fault?
    Any ways to "tune" the needle :roll ?
    Tonantsa, Nov 23, 2015
    #37
  18. jamesdio

    jamesdio Member

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    Does your tachometer work like this video below?



    If yes, It's the problem because of the slow servo motor of the tachometer.
    I don't think it can be fixed by modifying arduino source code.
    • Informative Informative x 1
    jamesdio, Nov 24, 2015
    #38
  19. Cvetan Cvetanov

    Cvetan Cvetanov Member

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    Nice job
    Cvetan Cvetanov, Dec 5, 2015
    #39
  20. Masilicondrio

    Masilicondrio New Member

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    How much current draw the tachometer?
    Its possible drive them with ULN2003APG (Max 500ma) transistor?
    Have a 7 segment led connected and 1 pin left in ULN2003 :)
    Masilicondrio, Apr 18, 2016
    #40
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