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

Joel Ewy jcewy at swbell.net
Thu May 3 00:27:43 EDT 2007


coco at yourdvd.net wrote:
> 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
>>
>>     
Hmm.  I thought the CoCo joysticks used 100K pots rather than 150.  I
might be mis-remembering.
>>> -------- 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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>>     
>
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