20 Aug
2009
20 Aug
'09
10:21 p.m.
On Fri, Aug 14, 2009 at 10:19:25PM +0100, Folderol wrote:
On Fri, 14 Aug 2009 22:43:15 +0200
Arnold Krille <arnold(a)arnoldarts.de> wrote:
This sounds intriguing. Right now I have an Arduino, and the reason I haven't used it
is because I tried hooking it up to a volume pedal and the noise was so intense it was
spewing out MIDI messages constantly... unusable. I had considered rigging up a passive
analog LPF, or maybe doing some smoothing in software on the Arduino, but ran out of
time/patience.
What would be involved in fitting this kind of encoder to a volume pedal? I can find
guitar-style volume pedals easily, and they're cheap. The advantage is that I could
use a very cheap ATTiny2313 with no ADC instead of an ATMega Arduino. Encoders sound like
the way to go.
On Friday 14 August 2009 21:59:53 Ken Restivo
wrote:
Nonono
Building an Arduino footpedal will be much more fun :)
Hmmm.
Instead of a pot on one of the analog inputs use a cheap shaft encoder
and count pulses.
It sounds great. Now I'm either going to hack
together an auto-wah via AMS
or something and an envelope follower, or build myself an Arduino pedal
footcontroller.
Get a footcontroller or control it from the keyboards modulation-wheel (if not
used otherwise). Auto-Wah sounds crap.
Arnold Double Hmmm
Fix it so that the index pulse is at exactly the halfway point in the
travel, and it will 'silently' re-calibrate itself every time you pass
throgh that point.
I don't know what an "index pulse" is. If you could point me to some good
introductory reading material on dealing with encoders, I'd find it very interesting
indeed.
Thanks.
-ken