I need your help please?

Discussion in 'Homework Help' started by Ashley, Mar 17, 2008.

  1. Ashley

    Thread Starter New Member

    Mar 17, 2008
    i need anser 4 this question :confused:

    you have been asked to design an egg timer by the company you work for. the timer design is going to use a 555 timer, it will have a buzzer that will sound when 3 to 4 minutes has passed.
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    This sounds like an assignment, so I will move it to another forum.

    You could start by searching the bulletin board for 555 timer circuits. There's probably several dozen. The data sheet for the LM555 is readily available online, too.

    Another good step to take is deciding what kind of noisemaker to use and what it's drive requirement is. There should be plenty of examples of how to use a 555 in this way.