help with simple led circut

Discussion in 'Homework Help' started by xavier20, Aug 10, 2009.

  1. xavier20

    Thread Starter New Member

    Aug 1, 2009
    Hi im kinda new at electronics but have some basic knowledge an skill. im desperatlly in need of making a basic small circut to make 32 smd led's flash randomlly at a resnable speed without using a program chip. if someone could please help me in laymens terms that'd be great. thanks
  2. t06afre

    AAC Fanatic!

    May 11, 2009
    Google this phrase -> pseudo random shift register. I remember doing it on a funny lab project just before a school break. But that was long time ago. So I can not help you more
    Good luck
  3. mik3

    Senior Member

    Feb 4, 2008
    You can make something which looks random but it is not.

    Take four 8-bit binary counters and wire them as to create a 32-bit counter. Then clock the first counter at 5 Hz and you will see the leds flashing according to the counting sequence. You will know that but the others won't and it will look random.