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  1. #1
    300+ Forum Addict jmig's Avatar
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    I have a wiring question.

    I made a bit of a goof, when I purchased some great looking LEDs for my gear indicators. The look a lot like the real ones. The problem is that after I bought them, I realized they are 12vdc LEDs.

    My question is in activating them. I had planed on using the OpenCockpits IO card to send the 5 vdc to the LEDs by the use of SIOC code. Do I need to use a relay that will be activated by the 5 vdc signal to get 12vdc to the LEDs? If so, how do I turn them off when the gear are up in the wells?
    John

    System:
    ASUS P5Q SE/R
    Intel Q9550 O/C to 3.4 GHz
    4 GB 1066 DDR2 RAM
    300 GB WD 10,000 RPM Raptor SATA Drive
    GeForce 8800 GT 512 KB RAM
    Matrox TH2Go with three 19" Sumsung 940 BX
    IR Track 4

  2. #2
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    John,

    I'd try them on 5 volts and see how bright (or dim) they are. My guess is that what you have is a led packaged with a series resistor. Running it on 5 rather than 12 volts should result in roughly a third the full rated current and less light output.

    That may actually be better if you run your sim in a darkened room. At 12 volts they may be designed to be clearly visible in full daylight, and far too bright in a dim room.

  3. #3
    300+ Forum Addict jmig's Avatar
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    Quote Originally Posted by Mike.Powell View Post
    John,

    I'd try them on 5 volts and see how bright (or dim) they are. My guess is that what you have is a led packaged with a series resistor. Running it on 5 rather than 12 volts should result in roughly a third the full rated current and less light output.

    That may actually be better if you run your sim in a darkened room. At 12 volts they may be designed to be clearly visible in full daylight, and far too bright in a dim room.
    Hi Mike, Good to see you here. These are a bunch of builders. How's the new book coming? Be sure and print enough copies so I can get one.

    I will try the 5 volts. It may be a while, however. I still have to figure a way of mounting the three outside view 19" monitors without destroying them. Then I start hooking up the electronics stuff.

    Meanwhile, I have to go to Canada and Wyoming on business. Damn oilfield keeping me busy. It is as bad as the early 1980's. Just hope we don't go boom again. LOL
    John

    System:
    ASUS P5Q SE/R
    Intel Q9550 O/C to 3.4 GHz
    4 GB 1066 DDR2 RAM
    300 GB WD 10,000 RPM Raptor SATA Drive
    GeForce 8800 GT 512 KB RAM
    Matrox TH2Go with three 19" Sumsung 940 BX
    IR Track 4

  4. #4
    Executive Vice President, MyCockpit


    Matt Olieman's Avatar
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    Hi Mike, I too always look forward toward your input and, make sure there's a copy of the new book for me too.

  5. #5
    300+ Forum Addict



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    The book (http://www.mikesflightdeck.com/upcoming_book.htm) is about 75% drafted. I've got 457 pages of manuscript and anticipate slightly more than 600 in total. Not much progress happening currently as all the deferred house projects came due at the same time. Hope to get back to the book in a month or two.

    Thanks for your continuing interest

  6. #6
    75+ Posting Member James Twomey's Avatar
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    Oh no......Just seeing that bit of the book has me already salavating..... Wife better hide the check book!!!!

  7. #7
    MyCockpit Support Staff


    Westozy's Avatar
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    Hi Mike and welcome to MyCockpit.org.

    I have just made a dimmer circuit as described in your website and have successfully made dimmable wash lighting for the MIP, it looks and works great. My first foray into electronics!

    Thank you for sharing the info,

    Gwyn

    737NG using Prosim737, Immersive Calibration Pro, Aerosim Solutions motorized TQ & cockpit hardware, CP Flight MCP & FDS SYS1X, SYS2X & SYS4X, FDS PRO FMCs, AFDS units & Glarewings, Matrix Orbital ELEC display, Pokeys Landing & Cruise alt display, Buttkicker Gamers, 3 x BenqMW811ST projectors with a Matrox Th2Go
    http://www.aerosimsolutions.com.au
    Supporter of MyCockpit.org, please join me in donating!!!

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