[Coco] Mice and The CoCo, PD Library and Sub-Etha stuff -- Attn: Allen Huffman!

[coco at yourdvd.net]

I've spent a few minutes browsing Analog Devices website, and the AD5220
looks like a good candidate for the digital potentiometers. It is
available in a 100kohm version (the coco mouse uses 150k so i'll have
to test these - i once made a homemade coco joystick with surplus
joystick innards that had 100k pots and it worked well, but I want to
make sure these can handle the entire range), these are rated at 15
microamps, so i'll have to dig out the reference manuals on the coco
here in a few minutes to see if these are suitable. I'll order a few
and rig them with a toggle switch and a pushbutton to clock them just
to test the range. Okay, so now it's off to designing the circuit and
waiting for parts to arrive.--robert

> -------- Original Message --------
> Subject: Re: [Coco] Mice and The CoCo, PD Library and Sub-Etha stuff --
> Attn: Allen Huffman!
> From: coco at yourdvd.net
> Date: Wed, May 02, 2007 5:37 pm
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> 
> The only problem with the scroll wheel in a device such as this (will
> attach to the joystick port) would be that it would have to emulate
> either the right or left coco mouse button and the scroll function
> would have to  emulate either the left or right movement of the mouse,
> but it could be implemented. I only wanted to make this so we could
> have a ps/2 mouse to replace the coco mouse and still work with 100% of
> the coco software. Under os-9 it would be best to wait for mark's
> superboard and use it's ps/2 ports - with the proper driver, all
> buttons and wheels could perform specific functions. Soon as I get a
> schematic together, I'll send you a copy to let me know what you think
> and then i'll put it together and test it. Anything I end up developing
> will be free to the community so anyone can build or i can build for
> them - it's all in fun and here's to the greatest 8 bitter of all time
> - The TRS-80 Color Computer -robert
> 
> > -------- Original Message --------
> > Subject: Re: [Coco] Mice and The CoCo, PD Library and Sub-Etha stuff --
> > Attn: Allen Huffman!
> > From: Joel Ewy <jcewy at swbell.net>
> > Date: Wed, May 02, 2007 3:46 pm
> > To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> > 
> > coco at yourdvd.net wrote:
> > > Joel, your suggestions are excellent. As soon as I get moved in I'll
> > > start organizing everything (honestly, when I'm not working, I am at
> > > the PC or one of the CoCo's - the CoCo is much more fun). I was
> sitting
> > > here fooling with one of my PIC programmers and working on the
> idea - I
> > > actually like your idea of having it roll over from 0 to 63 and vice
> > > versa, but perhaps it could be switchable - exact emulation, or
> > > rollover).
> > >
> > >   
> > Thanks, Robert.  I'll be really interested in what you might come up
> > with.  I wonder how difficult it would be to add support for scroll
> > wheels.  I hated those things when they first came out -- I think the
> > first one I played with had too weak a spring for the middle-button
> > function, so I found it very difficult to scroll without doing
> > unintended middle-button clicks -- but by now I've gotten to like them.
> > > As for organizing the PD, I wouldn't want to include anything that
> > > hadn't been officially released to the public for distribution, but I
> > > am going to proceed with this - I'll have given something to the
> > > community useful other than my sometimes senseless rants.
> > >
> 
> 
> 
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