<div dir="ltr">Alexandros and Roman:<div>Thanks, i'll check both of your suggestions. I'll let you know how it goes.</div><div><br></div><div>I also just ordered a Practical Maker PWM shield for arduino UNO. 1 shield gives you 32 pwm pins and they're stackable, up to 6 without the need for an external power supply. <a href="http://www.practicalmaker.com/products/arduino-shields/pwm-shield-assembled">http://www.practicalmaker.com/products/arduino-shields/pwm-shield-assembled</a> </div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jun 26, 2013 at 5:58 PM, Roman Haefeli <span dir="ltr"><<a href="mailto:reduzent@gmail.com" target="_blank">reduzent@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">I once hacked together a small Arduino firmware and corresponding Pd<br>
abstraction, that does just that. You send the pin number and the duty<br>
cycle and the firmware manages the timing of the duty cycle. The<br>
advantage is that the timing is much more precise compared to sending<br>
both on and off commands over the serial link. This might allow for some<br>
velocity control.<br>
The abstraction and firmware does not address multiplexing/daisy<br>
chaining. But probably it is still useful as a starter.<br>
<span class=""><font color="#888888"><br>
Roman<br>
</font></span><br>
P.S.: I haven't the had the chance to really test the help-patch. Just<br>
rant if something is not working as expected or unclear.<br>
<div class=""><div class="h5"><br>
On Mit, 2013-06-26 at 20:00 +0200, batinste wrote:<br>
> That is one of the many cases where my advice would be : don't use<br>
> firmata/pduino. Program the arduino for real. Use a basic custom<br>
> protocol over the serial link, and talk to the arduino with [comport].<br>
> You'd spend much more time trying to get it to work with<br>
> firmata/pduino than programming the 'duino and let it do the real work<br>
> instead of clogging your serial port.<br>
><br>
> On 26/06/2013 16:56, Epic Jefferson wrote:<br>
><br>
> > Charles Z Henry & batinste:<br>
> > I need the project to be pd controlled, i could try multiplexing but<br>
> > i haven't found info yet on how to control multiplexed pins via pd.<br>
> ><br>
> ><br>
> > Peter Venus:<br>
> > i've been in contact with Winfried, and was about to purchase one of<br>
> > his older systems but haven't heard from him in a while. Working on<br>
> > plan B.<br>
> ><br>
> ><br>
> > Olivier:<br>
> > that was good work but again, pd is a must and servos are extremely<br>
> > loud.<br>
> ><br>
> ><br>
> > Charles Goyard:<br>
> > i've been able to control solenoid velocity with pwm via pd, this is<br>
> > also how Winfried does it. Also, motors are way too loud, as I told<br>
> > Olivier. That's why i'm investigating daisy chaining the arduinos,<br>
> > i'm basically emulating Winfried's system, but replacing his Escher<br>
> > micro-controller with arduino Mega's.<br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
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