"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
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list