LED electronic fence lights

Discussion in 'The Projects Forum' started by jchannel, Oct 19, 2014.

  1. jchannel

    Thread Starter New Member

    Jul 15, 2009
    4
    0
    I am in need of help finding or designing electronic lights like the one's used at Busch Gardens Howl-o-scream. They are like Christmas lights and sparkle fast. Here is a link that shows what they look like.

     
  2. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,172
    397
    To me, looks like the lights all flash in unison with a semi random pattern. Probably could be done with uC, as for me, it would be a clock, one or two shift registers & a big FET. Assuming LED's in unknown number & brightness.
     
  3. DickCappels

    Moderator

    Aug 21, 2008
    2,653
    632
    They look more like xenon flash lamps or white LEDs. More likely they are LEDs. Overall, you would want the average flash rate to be a little above 3 Hz to generate the maximum emotional stress. To get the more or less random appearing flicker you would want to drive the LEDs with a pseudorandom waveform, such as with the projects shown in the link below.
    http://www.horrorseek.com/home/halloween/wolfstone/Flicker/flksof_SoftwareFlicker.html
     
  4. wayneh

    Expert

    Sep 9, 2010
    12,123
    3,047
    There is a lot of technology around stage and effects lighting. A guy not far from where I live could probably answer your question. See if you can get thru to him via here.
     
  5. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,172
    397
    Two 4021's look pretty close, 3 might be better. Only used one LED on BB,; might need auto re load. Not worth inking as OP has seemed to have flown.
     
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