[PD] Piezo, trigger, Arduino

[Pierre Massat]

Thank you all for your advice.

@Roman : what type of op-amp do you use?

Thanks!

Pierre

2011/6/17 Michael Shiloh <michaelshiloh1010 at gmail.com>

> 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 at 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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>
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