How can i design simple alarm circuit

Discussion in 'General Electronics Chat' started by yaron4, Apr 2, 2005.

  1. yaron4

    Thread Starter New Member

    Apr 2, 2005
    1
    0
    I work with multisim but any pic wil help me.


    Thank you a lot
     
  2. Brandon

    Senior Member

    Dec 14, 2004
    306
    0
    Depending on your application, you don't even need to use a pic. It could be done with a 555 timer by itself at the easiest point.

    What type of activation switch and response are you looking for?
     
  3. mozikluv

    AAC Fanatic!

    Jan 22, 2004
    1,437
    1
    hi

    if you want a very simplified alarm you can do it with just a couple of transistor to monitor current changes to trigger a relay to sound the alarm :)

    using the 555 has been always been the common solution :)
     
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