Comments on: The Multixylophoniomnibus

By: Greg Borenstein

Greg Borenstein — Wed, 02 Dec 2009 13:33:15 +0000

binlagin -- There is no noticeable latency with analogRead. The difference between analogRead and digitalRead is just a few instructions so literally millionths of a second. The issue you're seeing probably has more to do with the shape of the signal coming in from your piezo. You might be seeing a bit of a run-up before it reaches its peak value. I'm going to write-up a post soon about what I learned about that process but Todbot's post on using the piezo is a pretty good place to start: http://todbot.com/blog/2006/10/29/spooky-arduino-projects-4-and-musical-arduino/

By: binlagin

binlagin — Wed, 02 Dec 2009 13:09:57 +0000

Hello,
Just like chipz I’ve been struggling with an Ardrino drum project… but my issue is NOT the peizo sensor it self.
My major problem is that there is noticable latency when striking a peizo pad. Somewhere somone hinted that it might be because analogRead() are cpu expensive compaired to a digitalRead(). The latency is not more then a second… but still enough to throw you off.
Do you experience any lag with your project? Watching the video it’s hard to tell.

By: ben

ben — Wed, 02 Dec 2009 13:08:16 +0000

By: chipz

chipz — Sun, 22 Nov 2009 07:54:21 +0000

I’m wrestling with piezo sensors in a drumming context, and really hoping that you will follow through on your promise to post what you’ve learned about piezos!
I hadn’t run across your site before. A link from Hackaday brought me here. I am very impressed by the detail and the clarity of your write-ups. Going to have to add your site to my daily reading. Thanks!

By: AO

AO — Tue, 17 Nov 2009 11:07:48 +0000

Nice project from conception to fabrications!

By: rob w.

rob w. — Mon, 16 Nov 2009 10:24:55 +0000

Excellent. Hope you have an oscilloscope to help wit hinterfaces! Now I’m enjoying Designing Interactions, book of historical interviews going back to the 80’s. There is a whole body of anthro work on designing experience, and adapting it.

By: Eric Mill

Eric Mill — Sun, 15 Nov 2009 20:29:49 +0000

You are in your element.