Thank you all for your advice. @Roman : what type of op-amp do you use?
Thanks! Pierre 2011/6/17 Michael Shiloh <michaelshiloh1...@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 <pimas...@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 > > > > _______________________________________________ > > Pd-list@iem.at mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > > >
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