

Each pot has 3 connections. The ends of the pot are connected to
ground and 5v as shown in the picture below. So this means "daisy chaining" all
of the pot end connections on the counter-clockwise end to ground and all of
the pot end connections on the clockwise side to 5 volts. Ground and 5 volts
are supplied by the included wiring harness.
Then, each pot center (slider)
connection is connected to one of 6 wires on the harness.
The picture
shows an example of two pots connected, to the X and Y axes.
| BLACK | GROUND | ![]() |
|
| RED | 5 VOLTS | ||
| BLUE | X AXIS | ||
| ORANGE | Y AXIS | ||
| YELLOW | Z AXIS | ||
| GREEN | X ROTATION | ||
| GREY | Y ROTATION | ||
| PURPLE | Z ROTATION | ||
| BROWN | NOT USED |
If you are using controls which don't cover the entire range of
travel of the pot, you will need to calibrate the control. Click on "Control
Panel", "Game devices", and then highlight the entry for "A-PAC Interface", and
follow the instructions. This will ensure that a full movement of the control
device corresponds to a full movement in the game. Where the instuctions state
"press a button" you can click on "next" instead.
"Trick" Calibration.
You might want to calibrate so that an
analog control produces full movement in the game over a small movement of the
control. You can easily do this. During the calibration process, when it asks
you to move the control to the limits of movement, if you only move it to, for
example 50% of the travel, this will be logged as the full-travel position, so
you will get a full game movement over 50% of the actual control motion.
Other Settings
MAME has a setting for "Joystick
Dead Zone". This is useful when you are using an analog control in a digital
game, as you can tweak the "travel" of the control, ie how far you have to move
it before it registers as an emulated switch press.
Using with MAME
To use this device with MAME,
all you need to do is enable joystick support in MAME.INI. You will need to go
into the MAME control menu (press TAB while in a game) and assign each axis to
the appropriate control.
FAQs