Good day
I want to make a VERY loud noise at about 20khz
I assume I can use the SOUND command, but what speaker or piezo must I use that will make a very very loud noise?
Loud Noise at 20khz
Good day
I want to make a VERY loud noise at about 20khz
I assume I can use the SOUND command, but what speaker or piezo must I use that will make a very very loud noise?
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Very likely you will need a speaker and a TBA820 as amplifier, and you will obtain a loud sound out. For a very very loud, you will need a several watts amplifier
Al.
Last edited by aratti; - 13th July 2009 at 18:25.
All progress began with an idea
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Thank you very much aratti!!
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If you want to put out a lot of db at 20khZ you should look into a piezo tweeter to connect to the amp.
Tim Barr
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Thank you falingtrea.
Just a thought.
Will I be able to run a piezo tweeter directly from a pic using the sound command (without any amplifier)?
Or will the sound not be very loud?
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Hi koossa,
IMHO a 555 timer is more appropriate for this project, it's analog output will better drive the amplifier than the PICs choppy output. Price ? About the same, you could use a 556 dual 555 and vary the tone with the second timer, Oh, and have more hair left at day's end too.
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There simply is no "Happy Spam" If you do it you will disappear from this forum.
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