
Apple II Computer Info
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### FILE : joyst.ibm2aii
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### Created : Sunday, January 14, 1996 Modified: Sunday, January 14, 1996
### File Type: "TEXT" File Creator: "LMAN"
### File Size: 3171 bytes 3 KB
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Path:
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Newsgroups: comp.sys.apple2
Subject: Apple II digital joystick interface
Date: 22 Nov 1992 12:54:42 -0600
Organization: UTexas Mail-to-News Gateway
Lines: 70
NNTP-Posting-Host: cs.utexas.edu
This is the schematic for using a digital joystick on an Apple II game port.
Use one copy of this circuit for each joystick axis (i.e. you need two of
these).
-----o o-------*------------->|--------
| _____ | D1 |
| |_| | \-----\ |
| |__\ \ |
+5V o--* __ | NOR >O--\/\/\/\--*---o Paddle Input 0 or 1
| _ | / / R1 |
| _|_|_ | /-----/ |
| | |
-----o o-------*----\/\/\/\-->|--------
R2 D2
R1 = about 71K
R2 = 150K
D1 & D2 are switching diodes
I don't know if this company is still around, but they used to sell factory
seconds of comercial quality digital joystick elements (the type used in
comercial arcade games). The company is Newport Machine Design, PO Box 418,
Bishop, CA, 93514 (phone: 619-873-5677).
The suggeseted pin-out for this is the Coleco Adam, which is the same as the
Atari, but has a second push button.
joystick socket #
position on plug
======== ========
UP 1
DOWN 2
LEFT 3
RIGHT 4
FIRE 2 5
FIRE 1 6
Apple II Computer Technical Information : Apple II Family Hardware Info
ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 218 of 572
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