Dragons Fire...

Discussion in 'The Projects Forum' started by tinkerunique, Mar 18, 2010.

  1. tinkerunique

    Thread Starter New Member

    Mar 18, 2010
    1
    0
    Have 2 different schematics for a 10 LED chasing circuit = 1 6v and 1 9v. The schematics have small differences. :confused: I'm looking for one that will operate with 12 volts. The LED's will be embedded in casting resin, in a spare tire cover with a "fire-breathing dragon' cast into it. I would like the "flame" to light (chase) when the brake lights go on. The 10 segment bargraph looks good but what small changes need to be made to handle 12v. ?? ;)
     
  2. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    You could buy 12v LEDs.
     
  3. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,175
    397
    Posting schematics would greatly help, also list LED specs. Most likley need only to change LED ciurrent limiting desistor.
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Use the 9v schematic, but add a 9v voltage regulator circuit to the front end of it.

    An LM7809 with a .33uF input cap and .1uF output cap would fix you right up.
     
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