555 LED Dimmer flickering

Discussion in 'General Electronics Chat' started by electrongod1, Dec 30, 2018.

  1. electrongod1

    Thread Starter New Member

    Sep 8, 2018
    16
    1
    I prototyped this circuit on a breadboard and it works perfectly. Ordered some pcbs using EasyEDA, assembled the components and the LED strip flickers. Have compared my breadboard wiring to the pcb and all looks fine. Tried to troubleshoot with my scope, but I'm not that smart. Just an old guy trying to have fun. Any help would be appreciated.
     
  2. ericgibbs

    Moderator

    Jan 29, 2010
    8,129
    1,643
    hi elect,
    Try adding some decoupling caps as per this image.
    E
    AA1 30-Dec-18 08.14.gif
     
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