Re: gEDA-user: OT - Joystick control of stepper or servo motors

["David C. Kerber" <dkerber@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

Wow, that looks super simple; thanks!
 

> -----Original Message-----
> From: geda-user-bounces@xxxxxxxxxxxxxx 
> [mailto:geda-user-bounces@xxxxxxxxxxxxxx] On Behalf Of Matthew Wilkins
> Sent: Monday, January 24, 2011 7:14 PM
> To: gEDA user mailing list
> Subject: Re: gEDA-user: OT - Joystick control of stepper or 
> servo motors
> 
> Seems like you could just use this example, add a second 
> axis, and replace the potentiometer with a 2-axis joystick.
> 
> http://www.arduino.cc/en/Tutorial/StepperUnipolar
> 
> http://www.parallax.com/Portals/0/Downloads/docs/prod/sens/278
> 00-2-AxisJoyStick-v1.0.pdf
> 
> 
> 
> ----- Original Message ----
> From: David C. Kerber <dkerber@xxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: gEDA user mailing list <geda-user@xxxxxxxxxxxxxx>
> Sent: Mon, January 24, 2011 4:41:25 PM
> Subject: Re: gEDA-user: OT - Joystick control of stepper or 
> servo motors
> 
> Actually, my first thought was to use an analog joystick, 
> since I have one floating around somewhere, but I thought 
> there would be more USB host controllers around for 
> reasonable prices.  It's not looking like that so far, so I 
> may go with the analog option.  If I do, then I have to be 
> able to tranlate the pot value of the joystick to a speed 
> signal for the drive motor.
> 
> I'm still in the very early stages of this project, so pretty 
> much everything is up in the air at the moment.
> 
> D
> 
> 
> 
> > -----Original Message-----
> > From: geda-user-bounces@xxxxxxxxxxxxxx 
> > [mailto:geda-user-bounces@xxxxxxxxxxxxxx] On Behalf Of 
> Colin D Bennett
> > Sent: Monday, January 24, 2011 3:25 PM
> > To: geda-user@xxxxxxxxxxxxxx
> > Subject: Re: gEDA-user: OT - Joystick control of stepper or servo 
> > motors
> > 
> > On Mon, 24 Jan 2011 10:19:53 -0500
> > "David C. Kerber" <dkerber@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> > 
> > > Hi, electronics gurus!  I'm looking for suggestions on the best 
> > > inexpensive way to use a USB game joystick to control
> > stepper or servo
> > > motors.
> > > 
> > > The application is using a joystick to drive the the platform 
> > > positioning knobs on a microscope, to help me keep the
> > subjects in the
> > > field of view, while I'm photographing them.  I'll also be
> > adding the
> > > ability to trigger the camera shutter with the joy stick,
> > but I don't
> > > anticipate any trouble with that part; it's the motion 
> control side 
> > > that I have no experience with.
> > 
> > As far as the joystick goes, you might try to find a 
> non-USB joystick.
> > Maybe use a PlayStation 2 controller (two analog joysticks and 
> > multiple buttons for extra control features) or find a 
> cheap analog PC 
> > joystick.
> > Using USB where it's not suitable means you have a lot of extra 
> > complexity and overhead.
> > 
> > Regards,
> > Colin
> > 
> > 
> > _______________________________________________
> > geda-user mailing list
> > geda-user@xxxxxxxxxxxxxx
> > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
> > 
> 
> 
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> 
> 
> 
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