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  1. #11
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    Just as a follow up, I tried the method with one bright green LED as the 'on' state and two very dim orange leds to indicate 'available'. When on, I can still see a bit of the orange on the edges, but there's a distinct difference between on and off, and that's most important. I will upload some real pics of this when I have a moment.

    In terms of wiring, the green led will be wired to an LED64 board. The always on led will simply be hard wired to the power supply.
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    Jet fighter / single pilot sim, plus thinking of a 777 as a secondary sim.

  2. #12
    1000+ Poster - Fantastic Contributor AndyT's Avatar
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    Another option I have not seen listed here:

    Use a tri-color LED and switch the polarity for ON, OFF or FAIL.
    A few more parts, but if you put all the switching circuits up front of the matrix, it won't be that much more complicated.

    You could have:
    RED = Alert
    Blue = Normal
    Green = TEST
    OFF = Off
    God's in command, I'm just the Pilot.
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