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making mosquito high frequency to repel

Former Member

I was hoping to get advice on how to  generates high frequency sound that may repel mosquitoes.

 

Any ideas on this project ???

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  • I don't know if a piezo speaker/buzzer gets you the right frequencies, but here is an example circuit from Oomlout to make sound:

    http://www.oomlout.com/oom.php/products/ardx/circ-06

     

    For the high frequencies, maybe keep an eye on nearby dogs and cats when testing - they can hear up to something like 65-85KHz.

     

    And I guess you can do testing with a few pop-bottle and yeast mosquito traps (one with your repeller, the other without) - that's assuming those traps work image

     

    Good luck, hope it works out!

     

    Cheers,

    -Nico

  • in reply to ntewinkel

    Did not see any specs on FreQ range on oomlout.

     

     

     

    Will need a High Freq speakers but also may have to test with lower freq.  I think some type of noise will repel them.

  • in reply to Former Member

    That Oomlout example is only showing how to hook up a piezo speaker/buzzer and gives a very basic example of how to make some tones, but you can modify the code to get to your desired frequency. Look at their comments for notes, for example:

    * note      frequency      period      timeHigh

    * c     261 Hz     3830      1915 

     

    I'm guessing that changing timeHigh to 19 would give you close to 26,100 Hz, or 26 kHz.

     

    You'd have to do some math to figure out the required delays to get the desired frequencies (smaller delay = higher frequency), but the rest is pretty much there for you to use.

     

    Cheers,

    -Nico

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  • in reply to Former Member

    That Oomlout example is only showing how to hook up a piezo speaker/buzzer and gives a very basic example of how to make some tones, but you can modify the code to get to your desired frequency. Look at their comments for notes, for example:

    * note      frequency      period      timeHigh

    * c     261 Hz     3830      1915 

     

    I'm guessing that changing timeHigh to 19 would give you close to 26,100 Hz, or 26 kHz.

     

    You'd have to do some math to figure out the required delays to get the desired frequencies (smaller delay = higher frequency), but the rest is pretty much there for you to use.

     

    Cheers,

    -Nico

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