Are you using piezo sensors? :-)
Try this for starters:
http://www.arduino.cc/en/Tutorial/KnockSensor
Note that there are other types of piezo sensors, but this is the most
common type and probably what you mean. May or may not come in the
black plastic case.
They are also often called contact mics or piezo speakers. Best price
is probably from those silly singing birthday cards. Ask your friends
for their old ones and you'll probably get them for free.
I also find that most lo-fi audio equpiment uses these as speakers:
cordless phones, answering machines, assorted beepers and buzzers. If
you collect old junk for future component salvage (I do), you probably
have half a dozen of these already.
Good luck and let us know what you make!
Michael
On Fri, Jun 17, 2011 at 5:27 AM, Pierre Massat <pimassat@gmail.com> wrote:
> Dear List,
>
> This is yet another question about Arduino. Sorry about that.
> I want to use piezos to trigger samples using my arduino board. I want the
> trigger to be sensitive, and a quick google search seems to show that piezo
> is the way to go.
> Does anybody have any experience with piezo triggers (what type of piezo,
> isolating each piezo, etc.)? I will hit the piezos with my bare fingers (no
> drumsticks or anything like that), but i guess it doesn't really matter
> since i can control the threshold within Pd.
>
> This last sentence is just to make sure that everyone knows i'm talking
> about piezos in case there wasn't enough occurences of the word in my
> message.
>
> Cheers!
>
> Pierre
>
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