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Simple 'Blink' Circuit / PCB

Discussion in 'PCB Layout, Design and Manufacture' started by ShakeR, Dec 13, 2012.

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  1. ShakeR


    Dec 13, 2012

    I would like to make 10mm LED light kits running off a 9V DC battery blink in alternating fashion.

    I have the basic kits figured out, but I would like to put a very simple 'blink' curcuit board inline with the lights to have them alternately blink.

    For Example:

    16 LEDs (8 blue and 8 white) are run to the Circuit Board -> wires then go from the curcuit board to the 9V battery and on/off toggle switch. When the toggle is turned on, the 8 blue would turn on while the white were off, then the 8 white would turn on while the blue turned off, and so on and so on... The time can be static at say half a second or 1 full second between flashing. It doesn't matter much and I don't need / want to control the timing.

    I know very little about electronics, but I have to imagine such a simple circuit board would be cheap and readily available, but for the life of me, I can't find one online (I probably don't know what to search for).

    I would like to avoid creating the circuit board myself and I don't mind buying 100 of them if I have to. Can anyone point me in the right direction to find such a circuit board?

    Thanks in advance!
  2. donkey


    Feb 26, 2011
    have this ciruit laying around, there were issues of too many LEDs but I am sure someone can fix it if they get time
  3. ShakeR


    Dec 13, 2012
    Thanks for your reply!

    Is there a manufacturer / shop where I can buy such a circuit (or one similar) already made?
  4. BobK


    Jan 5, 2010
    You could try to fnd a cheap toy that blinks lights alternately and take out the board from it.

  5. CocaCola


    Apr 7, 2012
    If you want a custom run of boards done to your specs I would be willing to help you out, especially if you are in the market for 100 of them that makes a run much more economical...
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