[geeks] Replica-1 done

[Francois Dion]

On 10/1/05, Dave Kimmel <crisco_kid at shaw.ca> wrote:
>
> On Sep 30, 2005, at 1:32 AM, Bill Bradford wrote:
>
> > The 4" LCD didn't turn out as well as I'd hoped, so I'm looking for a
> > tiny composite-input CRT monitor (mono or color)... but the kit is
> > done!
> >
> > http://www.flickr.com/photos/mrbill/sets/1031279/
> >
> > I'm still waiting on the serial I/O board to arrive, which will let me
> > load and save programs over a serial connection to another system..
>
> That's pretty slick man! I love how they've used a couple of AVR
> controllers to emulate/replace some of the ICs that are no longer
> available.
>
> So when are you gonna get into designing your own stuff? This kit
> looks like a fine starting point - it's probably hackable enough[1]
> that you could add your own peripherals without trouble, and having
> an interactive BASIC environment will make ad-hoc development really
> easy.
>
> [1] Assuming that you even need to do any hacking. The Commodore
> Vic-20, for example, had an 8-bit User IO port which was only a
> couple of PEEKs or POKEs away. If this board has something like
> that, it would be dead easy to interface to some other circuitry and
> make it do even more interesting things.


The Apple II had serial annunciators you could access. The socket on the
motherboard where that was available also had the joystick button inputs and
potentiometer inputs. Not sure if apple I had that...

Francois