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Thread: LED Delay.

  1. #1
    150+ Forum Groupie riche543's Avatar
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    LED Delay.

    Hi all quick question regarding LED,s. Maybe its a dumb question but is there anything on the market that can delay the led from lighting up for say 5-15 secs once powers supplied to them. Im asking this as a bit of a cheat for the landing gear indicators that light red/green when gear is going up or down.
    Cheers.
    Rich..

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    500+ This must be a daytime job



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    Re: LED Delay.

    Hi Rich,
    There is a way useing electronics, but output from Fsim can be taken and used to drive your leds when gear is fully extended, in transit and fully retracted.
    What i/f are you using, that might give us all an idea of how you could achieve this action.
    Rgards
    Les

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    150+ Forum Groupie riche543's Avatar
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    Re: LED Delay.

    Hi les
    Thanks for reply
    At the moment im using an old joystick card with 2 basic switches onit done though fsuipc. so at the mo i just have the green leds conneted via the gear down switch if you get what i mean. so when lever is down on the gear down switch it also makes connection for all 3 green leds. Maybe some kind of delay switch/relay or somthing i need. I understand that with proper interface cards i can program the leds to come on as appropriate, it was just a temp/cheat until i start the main build oneday.
    Cheers

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    Re: LED Delay.

    Hi Rich,

    If you are thinking to a hardware solution, you may consider building a little circuit using a NE555 (or SE555) in monostable mode. There a many exemple on the Net ; here is an exemple :

    http://en.wikipedia.org/wiki/555_timer_IC

    Regards

    Patrick.

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    500+ This must be a daytime job



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    Re: LED Delay.

    Hi Rich,
    I thought that was your case. My thoughts are the same as Patricks, use a 555 timer. Here are some timer circuits that may help.
    http://home.cogeco.ca/~rpaisley4/LM555.html#3

    Les

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    150+ Forum Groupie riche543's Avatar
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    Re: LED Delay.

    Thanks guys will have a look into them cheers for the help..
    Rich..

  7. #7
    150+ Forum Groupie Roland's Avatar
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    Re: LED Delay.

    The link below shows a method to drive the green and red gear indicator lights with appropriate delays. It is triggered by the switch of the gear lever.

    http://www.simprojects.nl/gear_up_down_indicator.htm
    RR

  8. #8
    150+ Forum Groupie Kerbo's Avatar
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    Re: LED Delay.

    I'm a little late but you could use the circuit I made for this GA thread here.
    http://www.mycockpit.org/forums/show...ll=1#post89802
    Kerbo on YouTube or Twitch
    github.com/wriley

  9. #9
    25+ Posting Member 737dragon's Avatar
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    Re: LED Delay.

    Thanks guys

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