Re: Jog wheel

[John Sheahan <jrsheahan-at-optushome.com.au>]

now I just need a 3d mouse and the surface to run it on...

John

On Sun, Jun 02, 2002 at 07:01:02AM -0400, Paul wrote:
> 
> 
> Hi Bill
> 
> Hmm.... A device is needed that will count quadrature pulses and return an 
> incremental value when polled. It also needs to be cheap and able to handle 
> two or even three encoders. How about an EM83702 or equivalent ?
> 
> This chip is very common, and is nearly always found with two low resolution 
> encoders attached. Just look at the mouse in your hand <g>.
> 
> 
> Regards, Paul.
> 
> 
> On Sunday 02 Jun 2002 6:44 am, William Scalione wrote:
> > Perhaps a DRO board could be used to count up the pulses. Poll it every
> > 10 msec or so, seems it would be easier than trying to catch every pulse
> > that hits the parallel port.
>