[Coco] Diecom light gun adapter

[Michael Brant]

Ed,
I wonder how many of us with CRTs would be interested in a Diecom
reproduction.  I would probably be interested in 2 of them.  I have a CM-8
and a CRT VGA monitor.

On Thu, Jun 16, 2016 at 10:22 AM, Zippster <zippster278 at gmail.com> wrote:

> Maybe, it’s worth a try if someone has a light gun and an led display.
>
> - Ed
>
>
> > On Jun 16, 2016, at 9:01 AM, Barry Nelson <
> barry.nelson at amobiledevice.com> wrote:
> >
> > What about an LED display? They have much lower latency.
> >
> >> Zippster zippster278 at gmail.com
> >> Thu Jun 16 09:02:23 EDT 2016
> >> Yes, from what I was reading, there are two different systems using this
> >> general type of light gun.
> >>
> >> One calculates positioning information by drawing an entire field in
> white,
> >> using the timing of the display scan, and when light is seen by the gun
> to
> >> determine which part of the screen is being pointed at.  The
> compatibility
> >> issue here is that LCDs don’t scan left to right and top to bottom like
> a CRT,
> >> as well as latency.
> >>
> >> The other, which seems to be more common, draws the potential targets
> in a field
> >> when the trigger is pressed (in white), and if the gun sees light, it
> was pointed at the
> >> target.  The issue here just being latency.
> >>
> >> The timing is of course very tight and has to be accurate in this type
> of system,
> >> so the latency of an LCD display breaks it.
> >>
> >> Possibly the portions of software dealing with the timing could be
> rewritten to
> >> compensate for the delay, presuming a similar delay between LCD screens.
> >>
> >> Otherwise a different system using IR sensors for positioning like a
> modern console
> >> would be the way to go, but then there’d be nothing written for it.
> >>
> >> - Ed
> >
> >
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