1 minute timer circuit

Discussion in 'The Projects Forum' started by ertiexd125, Feb 12, 2011.

  1. ertiexd125

    Thread Starter New Member

    Jul 4, 2010
    16
    1
    can anyone give me a timer circuit using 555 which is working. i found some circuit in the net but some people says its not working. The timer will start as soon as it receives an input on pin 2 of 555 let's say a led on pin 3 will light but when it reaches the specific time let's say 1-10 minutes it will turn off.
     
  2. Freq50Hz

    New Member

    Feb 10, 2011
    2
    0
    Check out the CD4541 chip
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    You could show a schematic, that would help.

    A simple 555 timer actually needs a few more parts than just switching pin 2, though for such a long delay it would work...

    555 Monostable
     
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