Alexandros and Roman: Thanks, i'll check both of your suggestions. I'll let you know how it goes.
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. http://www.practicalmaker.com/products/arduino-shields/pwm-shield-assembled On Wed, Jun 26, 2013 at 5:58 PM, Roman Haefeli <[email protected]> wrote: > I once hacked together a small Arduino firmware and corresponding Pd > abstraction, that does just that. You send the pin number and the duty > cycle and the firmware manages the timing of the duty cycle. The > advantage is that the timing is much more precise compared to sending > both on and off commands over the serial link. This might allow for some > velocity control. > The abstraction and firmware does not address multiplexing/daisy > chaining. But probably it is still useful as a starter. > > Roman > > P.S.: I haven't the had the chance to really test the help-patch. Just > rant if something is not working as expected or unclear. > > On Mit, 2013-06-26 at 20:00 +0200, batinste wrote: > > That is one of the many cases where my advice would be : don't use > > firmata/pduino. Program the arduino for real. Use a basic custom > > protocol over the serial link, and talk to the arduino with [comport]. > > You'd spend much more time trying to get it to work with > > firmata/pduino than programming the 'duino and let it do the real work > > instead of clogging your serial port. > > > > On 26/06/2013 16:56, Epic Jefferson wrote: > > > > > Charles Z Henry & batinste: > > > I need the project to be pd controlled, i could try multiplexing but > > > i haven't found info yet on how to control multiplexed pins via pd. > > > > > > > > > Peter Venus: > > > i've been in contact with Winfried, and was about to purchase one of > > > his older systems but haven't heard from him in a while. Working on > > > plan B. > > > > > > > > > Olivier: > > > that was good work but again, pd is a must and servos are extremely > > > loud. > > > > > > > > > Charles Goyard: > > > i've been able to control solenoid velocity with pwm via pd, this is > > > also how Winfried does it. Also, motors are way too loud, as I told > > > Olivier. That's why i'm investigating daisy chaining the arduinos, > > > i'm basically emulating Winfried's system, but replacing his Escher > > > micro-controller with arduino Mega's. > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > [email protected] mailing list > > > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > > > _______________________________________________ > > [email protected] mailing list > > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > -- www.epicjefferson.com www.avmachinists.org Puerto Rico based Art Collective/ Non-Profit Org
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