Art Interface Device logo   Project description  Development   Mailing List  Contact


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

AID: Motor Questions

From: Tim Moody   timmoodysympatico.ca
Date: Wed, 13 Nov 2002 06:46:14 -0800

: Sent via the Art Interface Device mailing list: aid@interaccess.org
: Use your "Reply All" to  reply to the list, "Reply" for private response

I'm working on a PC parallel port interface to drive some 5V lights and 
some motors.  The logic chips work fine as do the drivers for the lights 
(L293), but I'm having problems with the drivers for the motors (L298), 
which have been unreliable (either I blew them or they were bad).  I chose 
stepper motors because I thought I would get more precise position control 
without having to build any feedback mechanism, but I'm wondering if I 
should go with something simpler and even drive it with a transistor (e.g. 
TIP 127).  Now the questions.

1) I know that some of you at least are interested in PWM which I assume is 
for driving non-stepper motors.  I'm interested in comments on the 
trade-offs between steppers and non.

2) I found the steppers (5V 8.5W unipolar) at Active Surplus.  Is there a 
better source for motors?

Thanks,
Tim



:      messages saved at http://www.interaccess.org/aid/list
:      unsubscribe/help requests to mailto:Majordomo@interaccess.org