led display

Discussion in 'The Projects Forum' started by tibbles, Nov 24, 2008.

  1. tibbles

    Thread Starter Active Member

    Jun 27, 2008
    249
    3
    ive just been asked to make an led cake decoration with 4 red leds in a line 4 inches long.yes i get all the good jobs...
    i am thinking of cutting a strip of pcb as narrow as possible , so i will have little space for individual on board resisstors.

    is there a way of wiring the leds with just a pair of copper traces on the board, and a single resisstor or w.h.y at the battery end which can be a small distance away and hidden?

    i seem to recall doing something similar years ago with uv leds but had problems with the leds not showing equal brightness.

    any suggestions much appreciated

    dougal
     
  2. tibbles

    Thread Starter Active Member

    Jun 27, 2008
    249
    3
    problem solved i think-- 5 volt or 12 volt leds with built in resistor

    regards

    dougal
     
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