sweeping freqs using 74HC14

Discussion in 'The Projects Forum' started by Kezz, May 6, 2006.

  1. Kezz

    Thread Starter New Member

    May 2, 2006
    5
    0
    Hi.

    I have an assignment at uni. left it kinda late but need to implement a siren sound using a inverting schmitt trigger.

    idea is to sweep a rang of frequencies and out put the sound to a speaker. but you can only use the 74HC14 IC .

    If anyone has any ideas or circuit diagrams or anything that would point me in the right direction or help that would be greatly appreachiated.

    Cheers.
     
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