[PD] how to pd2stepper motor?

Hans-Christoph Steiner hans at eds.org
Thu Oct 5 23:55:38 CEST 2006

Sounds like the [comport] probably didn't create properly.  If you  
have a recent auto-build or the most recent test release, then you  
can send a [info( message to [comport] and get a list of the  
available serial ports and their corresponding numbers.  Then you  
would do [comport 4] if /dev/ttyUSB0 is #4.


On Oct 1, 2006, at 7:45 PM, ad wrote:

> hi, tonite i've been trying to control a stepper motor via pd's  
> firmata, formerly known as pduino.
> im using the arduino-test.pd patch included with in the Pduino-0.1  
> release, me under linux (gentoo:)
> as soon as i choose the devicename port /dev/ttyUSB0 i get a full  
> pd window with:
> error: inlet: expected '' but got 'float'
> error: inlet: expected '' but got 'list'
> error: inlet: expected '' but got 'float'
> error: inlet: expected '' but got 'list'
> this doesn't happen when i open Gerda's and Georg Arduino-help.pd  
> and since it doesn't crash the process i can continue to check I/ 
> O's, passing data from a potentiometer to pd via analog inputs on  
> the arduino works like charm.
> but i got lost when trying to send control data to a step motor  
> connected in this way:  http://img.photobucket.com/albums/v20/ 
> igortme/Arduino/Ejemplos/ESQUEMA_MOTOR_PASO_A_PASO.jpg
> I wonder how should one send the messages to make the motor move in  
> one direction or the other any precise amount of steps? has anyone  
> done this (surely yes). could you tell me how will this pd2stepper  
> sintax goes?
> thanks,
> /alejo
> p.s: im sending also to the newly opened arduino mailing list :P
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The arc of history bends towards justice.     - Dr. Martin Luther  
King, Jr.

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