need help please

Discussion in 'The Projects Forum' started by JJ9, Apr 20, 2009.

  1. JJ9

    Thread Starter New Member

    Apr 20, 2009
    3
    0
    hi everyone

    what type of circuit would be needed for an alarm clock that began to sound 30mins before wake up time. the sound/music would gradually increase in volume.
    hope it makes sense..i am talking about progressive alarm clocks..but i want to know about the sound part not the light..

    what elecronic component(s) would be needed? What component could be incorporated into an exisiting analogue/digital alarm clock circuit?
    are there any exisiting circuits with explainations of how they work on the net?
    any information would be useful so i knwowhat to search for..

    i dont need to make this clock..i just need information/explanations


    help would be much appreciated!:)
     
  2. PRS

    Well-Known Member

    Aug 24, 2008
    989
    35
    I answered this somewhere else, I think.
     
  3. JJ9

    Thread Starter New Member

    Apr 20, 2009
    3
    0
    hi, yes you did...thankyou so much for your reply..

    do you have any suggestions as to where i can find more information on this?
    i am not making the clock..I need to included it in a project as research for a design concept..which is why i need an exisiting circuit..
    and yes..volume gradually increasing to maximum..
     
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