[Coco] CoCo Joystick Poke?

[theother_bob]

I frequently contemplated this in the past. In fact in my CoCo1 I had an internal joystick (stock CC1 stick) mounted to the right of the keyboard and a 4 pole rotary switch that would allow me to use either the internal or external stick... or maybe it would switch the internal between left/right input. I'm a little foggy on the details after all these years and have since removed the switch from that CoCo. 

I would like to see a digital switch, analog multiplexer based. Is it correct that a CMOS chip will pass an analog signal? (ie. x and y axis) Could you then use, say, a few 4 to 1 multiplexers controlled by a 2-bit johnson counter triggered by a pushbutton. You hit the button to advance to the next input device. THere would need to be some way to keep the same device from being selected on both joystick ports.

Bob


----- Original Message ----
From: Bob Devries <devries.bob at gmail.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Sunday, August 5, 2007 11:52:46 AM
Subject: Re: [Coco] CoCo Joystick Poke?


Diego said:
> This is something I would buy if someone made it....
[snip]

Relatively easy to make IMHO. You need a box with (up to) 6 DIN sockets, and 
two leads exiting with DIN plugs attached. Two rotary switches with 6 
positions each, but only three banks of contacts. All the fire buttons can 
be wired in parallel, since they're normally open switches, and grounds can 
be connected together.  The power supply (pin 5), the x and y inputs (pins 1 
& 2) need to be switched via the rotary switches.

Hmm, maybe I can draw up a schematic for that. (I'll get back to you) :)

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Diego Barizo" <diegoba at adinet.com.uy>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Monday, August 06, 2007 2:40 AM
Subject: Re: [Coco] CoCo Joystick Poke?


> This is something I would buy if someone made it....
> I have a mouse, 3 types of joysticks and a touchpad (Plus hi-res 
> adapters), but only 2 joystick ports to plug them.
> And if the control I want to use with the program/game I'm running is 
> plugged in the wrong port, then is unplug both, replug.
> I would love a switchbox with let's say, 4-6 ports, that would allow me to 
> "route" them to the left or right port in the CoCo....
> Diego
>
>
> Rogelio Perea wrote:
>>
>> I think there were some hardware projects that allowed for a switch to
>> choose either of the two ports, basically a switchable "Y" cable where 
>> you
>> plug your lone joystick in a single jack and the two DIN connector cables
>> out of the "box" to the two joystick ports in the back of the CoCo, and a
>> switch in the Y-cable/box would allow you to flip the joystick between 
>> ports
>> easily.
>>
>>
>> -=[ Rogelio ]=-
>>
>
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