light sequencer

Discussion in 'General Electronics Chat' started by biemole, Jan 16, 2011.

  1. biemole

    Thread Starter New Member

    Jan 16, 2011
    15
    0
    i am looking for a circuit that will enable me to sequence maybe 4 leds.. the only thing i need the first led to come on and stay on then the second to come on and stay on and the third to come on and stay on and fourth to come on and stay on and then all turn off and start again.. i have 74154 74164 7493 and 4017 available and of course 555,, thank you
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,764
    2,535
  3. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,050
    656
    Here's a way you can do it using a 74HC164 and some additional parts.
    I simulated it as shown. It should work with any version of 74164, but I didn't simulate it with other versions.
    I included the .ASC file for anyone who wants to simulate it in LTspice. If you need the pot files, post here.
     
    Last edited: Jan 16, 2011
  4. whatsthatsmell

    Active Member

    Oct 9, 2009
    102
    4
  5. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,050
    656
Loading...