LED design

Discussion in 'General Electronics Chat' started by qin841019, Feb 13, 2007.

  1. qin841019

    Thread Starter New Member

    Jan 31, 2007
    2
    0
    hi, all

    I'd like to design a little LED light that will flash at a certain frequency. My plan is to make it as a toy in my car, which looks like an alarm indicator.
    here is my problem. I have purchased a few LEDs from RadioShack(they are a lot more expensive than the ones in Frys), i don't know how to design it so that it will flashes?
    Do i have to use an AC source? can i accomplish it by using a DC source, such as a battery.


    Thanks,

    isaac
     
  2. mrmeval

    Distinguished Member

    Jun 30, 2006
    833
    2
  3. pebe

    AAC Fanatic!

    Oct 11, 2004
    628
    3
  4. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Here are some LED circuits at a website that I ran across sometime ago. EYE CANDY

    hgmjr
     
  5. PDubya

    Member

    Mar 16, 2006
    28
    0
    If you're already buying more expensive components at RadioShack, just buy the flashing LED. Then all you need is a resistor.
     
  6. Gadget

    Distinguished Member

    Jan 10, 2006
    613
    0
    Most flashing LED's dont even need a resistor.
     
Loading...