> "So, SMS is signicantly slower because it uses ASCII conversion ?
> Interesting. Even at high baud rates ?"

SMS is aimed at ease of use and precision. Although I am surprised to ear about SMS's and Pduino's speed problems.

I made an installation with an SSC-32 servo controller controlling 24 servos connected to PD. The SSC-32 is based on the SAME chip as the Arduino and  uses a communication protocol VERY similar to SMS and I never experienced any problems.

Maybe you are not keeping your messages simple enough?
Or maybe the big difference was that I was using a hardware serial port and not a USB>Serial chip/converter.

Tom


On 6/21/07, Alexandre Quessy < listes@sourcelibre.com> wrote:
Hi,

2007/6/21, tim <info@timvets.net>:
>
>  Roman Haefeli wrote:
>  On Thu, 2007-06-21 at 09:21 -0400, Alexandre Quessy wrote:
>
>  Hi!
> I don't want to insist... but a task like this would be much easier
> with the
> http://www.arduino.cc/playground/Code/SimpleMessageSystem
> than with something not-as-flexible like Pduino.
>
>  I agree to that.
>  We did something similar a while ago, with realys, shift-registers and 13
> solenoids.
>  It was fairly easy to make one firmware for pd communication with SMS as
> well as shifting code to drive the relays.
>  More complex passages showed some timing fluctuation, but overall timing
> was pretty good.
>  Polyphony was kept at a maximum of 4, above that, things became more
> unstable.

So, SMS is signicantly slower because it uses ASCII conversion ?
Interesting. Even at high baud rates ?


>  In case you're interested, see
> www.timvets.net/projects/erkiandtim/poltergeist
>  We obviously were more inclined to drink beer than to shoot film that
> night...;)

Error 404 !

a

>
>  Tim
>

--
Alexandre Quessy
http://alexandre.quessy.net
http://www.puredata.info/Members/aalex

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--
thomas ouellet fredericks, tof@danslchamp.org, montreal, canada