JOY81 - Programmable Joystick Interface for ZX81

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kmurta
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JOY81 - Programmable Joystick Interface for ZX81

Post by kmurta » Tue Apr 30, 2013 9:01 pm

Hi there,

I developed a Programmable Joystick Controller (the JOY81) and I'm thinking of producing a small amount of it and would like to know if anyone here would be interested in purchasing a unit.

The controller is compatible with one or two buttons Atari joysticks and programming it is as simple as set the BASIC commands

LET J$="QAOPXL"
RAND USR 16514

or even better, if you have a ZXpand interface. In this case, the programming is done automatically by ZXpand Commander from configuration file JOYCFG.TXT stored in the root directory. Set an entry for your game in the JOYCFG.TXT once and whenever you load it by Commander, the joystick will be magically configured. Play any game with the joystick, do not have to worry about changing the game code for it anymore.

The controller was developed in format of slot card for use with the ZeXtender, an extender board similar to the Maplin Extender. See the prototypes:

DSCN0307.JPG
ZeXtender prototype
DSCN0307.JPG (70.48 KiB) Viewed 1484 times
DSCN0314.JPG
The JOY81 prototype
DSCN0314.JPG (84.88 KiB) Viewed 1484 times
DSCN0316.JPG
ZX81 with ZeXtender + JOY81 + Turbo Sound 81 + ZXpand
DSCN0316.JPG (86.25 KiB) Viewed 1484 times

Estimated price to produce an amount of 30 units of ZeXtender + JOY81 is 30 GPB and shipping from Brazil to EU is about 12 GPB.

So what do you think? Do you have interest in these things?

Thanks,
Kelly Murta
1 x ZX81, 2 x TK85 , 1 TK82C, 1 TK95, 1 x Ringo R470, 1 x Alphacom 32 printer, 1 x ZXpand
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org

sirmorris
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by sirmorris » Tue Apr 30, 2013 9:32 pm

I would certainly buy one!

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PokeMon
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by PokeMon » Tue Apr 30, 2013 10:20 pm

Yes I am interested too.
But I need only the small red board (controller) and can combine it with my smaller extender board ZX81XT. ;)

Image

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siggi
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by siggi » Tue Apr 30, 2013 10:42 pm

I would be interested too. But only the red JOY-board, no extender.

Siggi
PS: is it based on Wilf's design?

Edit: please 2 for me (one to play, one as backup)
Last edited by siggi on Wed May 01, 2013 10:03 am, edited 1 time in total.
My ZX81 web-server: online since 2007
http://zx81-siggi.endoftheinternet.org/index.html

sirmorris
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by sirmorris » Tue Apr 30, 2013 10:45 pm

Same for me - only the joy board.

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kmurta
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by kmurta » Wed May 01, 2013 9:22 pm

PokeMon wrote:Yes I am interested too.
But I need only the small red board (controller) and can combine it with my smaller extender board ZX81XT. ;)
Oh yes, this can be done. In this case the board will cost 16 GPB.
siggi wrote: PS: is it based on Wilf's design?
No, it is based in an article of Hobby Electronic magazine.
1 x ZX81, 2 x TK85 , 1 TK82C, 1 TK95, 1 x Ringo R470, 1 x Alphacom 32 printer, 1 x ZXpand
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org

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PokeMon
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by PokeMon » Wed May 01, 2013 10:21 pm

kmurta wrote: Oh yes, this can be done. In this case the board will cost 16 GPB.
Okay you can consider this as an order for my board.
Maybe more people from the german forum are interested and we can organize a collection order with one address to save postage. ;)

Rink
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by Rink » Thu May 02, 2013 9:33 am

Might be interested - only in the Joystick board though, I already have one of Poke's extenders that I've not used yet. :)

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PokeMon
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by PokeMon » Thu May 02, 2013 3:42 pm

Rink wrote:Might be interested - only in the Joystick board though, I already have one of Poke's extenders that I've not used yet. :)
I hope you did not solder a connector in the middle, for this board you need a ZX bus connector (edge card connector). :mrgreen:

Rink
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Re: JOY81 - Programmable Joystick Interface for ZX81

Post by Rink » Thu May 02, 2013 4:21 pm

PokeMon wrote:I hope you did not solder a connector in the middle, for this board you need a ZX bus connector (edge card connector). :mrgreen:
I've not actually got it out of the wrapping yet mate :oops:

Bought one in case I needed it in the future - didn't really have an immediate reason for the purchase. :)

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