Joystick Atari 5200

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Image:connector_dsub15m.png 15 pin D-SUB male connector at the Atari.

Pin Description
1 Keypad – right column
2 Keypad – middle column
3 Keypad – left column
4 Start, Pause, and Reset common
5 Keypad – third row and Reset
6 Keypad – second row and Pause
7 Keypad – top row and Start
8 Keypad – bottom row
9 Pot common
10 Horizontal pot (POT0, 2, 4, 6)
11 Vertical pot (POT1, 3, 5, 7)
12 5 volts DC
13 Bottom side buttons (TRIG0, 1, 2, 3)
14 Top side buttons
15 0 volts – ground

It”s handy to consider the keypad in a matrix format:

Pin 4 3 2 1
7 Start 1 2 3
6 Pause 4 5 6
5 Reset 7 8 9
8 - 0 1.

For instance, mashing button 5 makes a connection between pins 2 and 6.

Analog Direction Inputs

Potentiometer inputs are 0-500kohm, linear. Directional inputs are read by a RC delay circuit, i.e. the time it takes a capacitor to recharge after being discharged determines the potentiometer positions.

  • North=0 ohm between pins 9 and 11
  • South=500 ohms between pins 9 and 11
  • West=0 ohm between pins 9 and 10
  • East=500 ohms between pins 9 and 10

References

Category:Input Device Connectors

 

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