square wave generation in a unique manner

Discussion in 'The Projects Forum' started by Afeesh, Sep 18, 2009.

  1. Afeesh

    Thread Starter New Member

    Jun 12, 2009
    hello to all
    I want to generate a square wave using 555(in astable or monostable mode) in a manner that when an input(low) occurs
    it should generate square wave for a period with ON time 1s and OFF time in the range of milli seconds continuously.This
    square wave must continue generating whenever the input low is present and stop whenever the input is high.
    plz suggest any easy methods.
  2. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    Put an inverter on the 555 reset pin.