Making an Apple Joypad

Vintage Apple/Joystick 2010.01.07 04:07
What I mean by a joypad is that it can only signal Up, Down, Left, Right, Center, and their combinations, and it cannot signal in-betweens like a joystick. For example, joypad cannot sense 30% Up nor 65% Right.

Here's the switch I used. If the switch goes up, the "Up" pin contacts to the "Common" pin.
switch

Here's the circuit diagram. I borrowed the idea from http://www.epanorama.net/documents/joystick/pc_circuits.html#atari_pc_converter.

Circuit Diagram

Actually, there is an error at the diagram: markings of (R) and (D) should be exchanged.

Now, here's the front side of the joypad...

joypad front

... and here's the back side.

joypad back

The molex pin is connected to my apple.

사용자 삽입 이미지

Now, the actual working video, playing legendary Lode Runnder with this joypad I made...


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Apple joystick study

Vintage Apple/Joystick 2010.01.07 03:36
To study how apple joystick works, I made a circuit like below..

9pin wiring

connection to my //c

breadboard

Basically, this is the very content of any apple joystick. The stick itself is nothing more than two adjustable resistors, and the buttons are just switches with a resistor for each.

Now the test for the buttons...



And the test for the stick... (showing only one of them)




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'Vintage Apple > Joystick' 카테고리의 다른 글

Making an Apple Joypad  (5) 2010.01.07
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