hi rolf,
>> i guess it comes from the motor's constantly trying to keep there
position against the gravity pulling on the arm.
yeah we believe thats whats is going on. not sure how to filter. going to
work on it this weekend. encoders as sending false positives. either we
filter (somehow) in hardware or directly in software (somehow)... but will
need time with it to troubleshoot.
>> The stand-alone feature made the use of standard Firmata impossible
got it.. thanks for your setup details!
m
On Tue, Nov 29, 2016 at 3:00 AM, <rolfm(a)dds.nl> wrote:
> hi,
>
> no experience with a robot-arm,
>
> but we are controlling up to 8 motors (servo or PWM),
> with Arduino Uno with SD-shield, and a PD front-end.
>
> The PD front-end can play and record scores.
> The manipulation of the motors is done with potmeters.
>
> In our situation the potmeters are read by the Arduino,
> the values are then sent to the PD front-end.
>
> In principle one could use direct input from a joystick, or a wiimote, or..
>
> The installations are able to run stand-alone;
> the Arduino program then uses a recorded score, stored on the SD.
>
> The stand-alone feature made the use of standard Firmata impossible.
>
> For a short period we tried to create an extended version, but gave up on
> it.
> Bottlenecks: the combination with the reading of the SD, and the max
> datarate for the serial port (115200) which forced us to make our own
> minimized message system.
>
>
> Re the noise of the servo's: i guess it comes from the motor's constantly
> trying to keep there position against the gravity pulling on the arm.
> How do you imagine to filter that?
>
> rolf
>
>
--
____________________
m.e.grimm, m.f.a, ed.m.
syracuse u., tc3
megrimm.net
____________________
> On Nov 29, 2016, at 5:28 AM, pd-list-request(a)lists.iem.at wrote:
>
> Should I use gcc or clang for compilation on OS X? Or both?
clang is fine and using “gcc” actually calls clang anyway. I wouldn’t bother with both.
If you want to explicitly build with gcc, you’ll need to install gcc via Homebrew and then set CC=gcc-6 to override the defaults. I was doing this the other day to check some errors that were only cropping up with a build on gcc and not clang.
--------
Dan Wilcox
@danomatika <https://twitter.com/danomatika>
danomatika.com <http://danomatika.com/>
robotcowboy.com <http://robotcowboy.com/>
PRESENTING the PURE DATA BENJOLIN
The Benjolin is a standalone synthesizer designed by Rob Hordijk from
the Netherlands in 2009 and available as an open hardware project
online. It contains two oscillators (one LFO and one VCO), a voltage
controlled filter and a circuit called a “Rungler”, which allows chaotic
cross-modulation possibilities between the different parts of the
circuit. Hordijk refers to the Benjolin as a circuit which has been
“bent by design.”
This Pure Data implementation of the Benjolin was coded by Derek Holzer
in SEP-NOV 2016 in Helsinki, after several years of producing customized
hardware Benjolins from his Berlin studio. The Pd Benjolin includes some
modifications of the original design, including a Looping switch, an
external Filter Source and an External Clock Source.
FEEDBACK + BUG REPORTS WELCOME!
DETAILS + DOWNLOAD: http://macumbista.net/?page_id=4690
Have fun at the the Pd-CON, folks!
D.
--
derek holzer
noise.art.technology
http://macumbista.net
_______________________________________________
Pd-announce mailing list
Pd-announce(a)lists.iem.at
https://lists.puredata.info/listinfo/pd-announce
Hi,
At http://puredata.info/docs/Deken is the beginning of a description on
how to make packages for the deken-plugin (Help > Find externals in any
modern Pd-vanilla version).
The description might expand or even be moved to another page, but the
URL above will be a starting point for deken info on puredata.info.
Greetings,
Fred Jan
Does anyone have copies of these two externals (creb and flatgui) for the
Raspberry Pi? Or know where I can find the source code? For some reason,
they're available for Windows, but not for the Raspberry Pi.
Thanks.
Thanks, I found most of them and was able to install them. I'm still
> missing two that don't seem to be in the repository, 'creb' and 'flatgui'.
> Maybe they're no longer supported by anybody. Any idea if they might be in
> some other repository?
>
> I only have two repositories registered at the moment:
>
> http://archive.raspberrypi.org/debian jessie main, ui
> http://mirrordirector.raspian.org/raspian jessie main, contrib,
> non-free, rpi
>
> David.
>
>
> > On 2016-11-24 15:46, David wrote:
> > >>
> > >> Hi!
> > >
> > >
> > > I have PD v0.46.2 installed on a RPi3 under Jessie. I'm trying to
> install
> > > some externals by using 'sudo apt-get install pd-<insert name here>',
> but
> > > I'm just getting "Unable to locate package ...". There was a posting on
> > the
> > > raspberrypi.org forum saying that this method worked, but the posting
> > was a
> > > little old.
> >
> > this method has worked for more than 10 years or so, and there is no
> > sign that it will stop working anytime soon.
> > anyhow, chances are that you misspelled "<insert name here>".
> > when using `apt-get install`, you must use the *exact* package name.
> >
> > you can get a list of available packages with
> >
> > $ apt-cache search ^pd-
> >
> > this will simply list all packages that start with "pd-"; afaict it only
> > contains pd-packages; and it only misses Gem, which goes by the package
> > name of "gem" for historical reasons.
> >
> > on a jessie/amd64 system this lists about 56 packages, on stretch/amd64
> > it's about 92.
> > on arm (e.g. the raspberry), you might get fewer packages, as some might
> > not be available on this architecture (though a quick look at the Debian
> > archive suggests that the only package missing from arm is pd-scaf,
> > which you have probably never heard about :-))
> >
> >
> > anyhow, you could also use a graphical package manager to do some
> > interactive search for available packages.
> >
> >
> > >
> > > Is this the best way to install externals on a RPi? Is there a
> > repository I
> > > need to add to find them? The latest version of PD available in the
> > Raspian
> > > repositories is v0.46.2. Maybe I should install v0.47, but where can I
> > find
> > > it for the RPi?
> > >
> >
> > in the mailinglist archives :-)
> > anyhow, installing Pd-0.47 won't magically make more packages available
> > via the apt package manager.
> >
> > hgs,t<
> > IOhannes
> >
> >
>
Hey Anselmo,
Here's the Digital Waveguide Synthesizer (string model) I promised you at pdcon16~It's actually a hack of Kim Taylor's original patches posted to the pd-list I-can't-remember-when. Enclosed is the original folder which also has two different pluck excitations and one bow excitation.It's quite CPU intensive - more so than a Karplus-Strong model, but it's really powerful. Kim also included a readme.html page with some theory on how it works, and a reference to the original Julius Orion Smith paper from Stanford.Anyway, have a play. My version has a tendency to produce more inharmonic tones, but a more authentic string synthesis is found in Kim's DEMO1.pd and DEMO2.pd files.
Enjoy!Ed Kelly
----------------------------------------------------------------------------------------------
Lone Shark releases: Light Vessel Automatic available now on 12" vinyl.Build Your Wings on the Way Down, the new digital album available @ http://scifirecords.co.uk/releases
Earthlings compilation is out now @ http://www.pyramidtransmissions.com
Ninja Jamm - the revolutionary music remix app for iOS and Android: http://www.ninjajamm.com/
Gemnotes-0.2: Live music notation for Pure Data, and Metastudio 5 live composition and improvisation suite, available at http://sharktracks.co.uk/puredata