555 relay chatter

Discussion in 'The Projects Forum' started by ben3928, Nov 20, 2013.

  1. ben3928

    Thread Starter New Member

    Nov 20, 2013
    1
    0
    I'm trying to use 555 timer to open a valve 12V-1amp,I'm controlling my humidity by a drip on a small towel & small fan I' using the wet towel as a veryable resister to control the timer I get relay chatter between 1&0 :) Ben
     
  2. gerty

    AAC Fanatic!

    Aug 30, 2007
    1,153
    304
    Post a drawing of what you have so we can see if there are any errors/problems.
    Also, I suspect this will get moved to the proper place, as this is for feedback.
     
  3. DickCappels

    Moderator

    Aug 21, 2008
    2,662
    633
    No circuit, but a guess based on your complaint: Put some hysteresis in your comparator circuit.
     
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