generate different waves

Discussion in 'General Electronics Chat' started by Robin Mitchell, Dec 2, 2010.

  1. Robin Mitchell

    Thread Starter Well-Known Member

    Oct 25, 2009
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    Hi everyone, One foot snow here!

    So how do you generate different waves like sine, saw and square from a small DC voltage?

    (im making a synthesiser)
    And also, i have designed a tone generator using different resistances in a simple astable 555 timer to produce differnet notes (changes the frequecny) but is there a better way because for one octave i have hundreds of resistors :/

    Thanks :)
     
  2. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    A tone generator is a classic microcontroller project. The 555 is fine for only a few notes, but for creating music, the mcu will be much simpler.

    As for the sine, saw, triangle, and square waves, have you searched anywhere yet?

    John
     
  3. Robin Mitchell

    Thread Starter Well-Known Member

    Oct 25, 2009
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    yeah but dont know what im really looking for
     
  4. bertus

    Administrator

    Apr 5, 2008
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  5. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    Try "triangle wave generator." Then substitute saw, square, or sine for triangle. If you know how to search for multiple terms simultaneously, then search on triangle + square + sine...

    John
     
  6. Wendy

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    Mar 24, 2008
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  7. Kermit2

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