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Thread: how to make LED flash?

  1. #1
    Variable Bitrate
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    Question how to make LED flash?

    For all the electronically inclined people out there... I have an LED that I would like to make flash (its for my carputer standby), so I'm wondering if there is a timer or something like that in can put inline with the LED to make it flash?

    Any thing like that out there?

    Thanks
    95 Honda Civic DX Coupe - In Progress
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  2. #2
    FLAC DodgeCummins's Avatar
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    Post

    Have you looked at Radio Shack or Auto alarm dealers.

    Someone sells an led that plugs into 12v and will flash...is that what you want?

    Also there is a simple circuit using a 555 timer chip to make one flash.

    I had two links to circuit designs but they are both broken. Try a google search.

    ------------------
    http://www.geocities.com/mr_bubba_zanetti/

  3. #3
    Variable Bitrate
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    Try partsexpress or electronic goldmine or such... there are plenty of LEDs out there with built-in flash.

    ~m

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  4. #4
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    the problem is i already have a nice led i want to use that doesn't flash.

    i think i might beable to whip something up with that 555 timer chip.
    95 Honda Civic DX Coupe - In Progress
    mp3civic site

  5. #5
    Retired Admin Aaron Cake's Avatar
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    Cool

    Don't use the 555 timer. Use the LM3909. It will flash a LED with 2 external components from as low as 1.5V.

    ------------------
    Aaron Cake
    London, Ontario, Canada

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  6. #6
    Variable Bitrate
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    That looks like a better chip. It has been discontinued though... non of the electronic stores around me carry it.

    Damn.
    95 Honda Civic DX Coupe - In Progress
    mp3civic site

  7. #7
    Maximum Bitrate gizmomkr's Avatar
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    check out http://www.techamerica.com

    Its owned by Tandy co. (the radioshack people) they sell ALL kinds of electronic kits, parts , etc. they have flashing led kits, flashing leds, and tons of ther cool stuff.
    Gizmo-
    Techonlogy on Wheels
    http://www.hjnetworks.com/car

  8. #8
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    www.national.com may be able to help.

    they will even give you FREE samples, on some chips I should have one for another project at my house tuesday

    just register, and tell them you are some kind of engineer.

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