DELPTRONICS WiiChuck Module Instructions
Operation
Plug a Nintendo Wii nunchuck controller into the Delptronics WiiChuck module.
When the nunchuck is recognized, the LED on the module will be illuminated. You
can plug and unplug a nunchuck any time.
Outputs
The Joy X and Joy Y jacks output control voltages corresponding to the position of
the nunchuck’s joystick. The Tilt X and Tilt Y jacks output control voltages
corresponding to the position of the nunchuck itself in space. Tilt to the left and
right to change the Tilt X CV. Tilt up and down to change the Tilt Y CV. The Btn C
and Btn Z jacks output zero or 10V depending on whether or not the
corresponding buttons on the nunchuck are pressed.
Inputs
The Tilt X Hold and Tilt Y Hold jacks are inputs. When the Hold inputs get a
positive voltage, the corresponding Tilt CV output will change in real time as you
tilt the nunchuck. When the Hold inputs get zero volts, then the CV outputs stay
the same regardless of the movement of the nunchuck.
The Tilt X Hold jack is normalized to a positive voltage, so when nothing is plugged
in, the Tilt X output will change in real time as you tilt the nunchuck. The Tilt Y
Hold jack is normalized the Tilt X Hold jack. So, if you patch a signal into the Tilt X
Hold jack, it also controls the Tilt Y Hold, unless you also patch the Tilt Y Hold jack.
Pro tip: It is very handy to patch the Btn C output into the Tilt X Hold jack. Then, you can control
when the tilt CVs are held with the C button.
Calibration
There are two types of calibration: joystick limits, and output voltage ranges. To enter
calibration mode, press the blue button. The LED will blink slowly. Follow the instructions below
to calibrate. To exit calibration mode, either press the blue button again, or press the Z button
on the nunchuck. When you exit calibration mode, the settings are saved and will be
remembered the next time you power on the module.
Joystick Limits
The joysticks have different ranges in different brands of nunchucks. In some third party
nunchucks the joystick values cover the full range from 0 to 255. In others, including official
Nintendo nunchucks, the range is more like 20 to 235. The WiiChuck module scales the
available range so that, regardless of the numbers reported by the nunchuck, the output goes
from zero volts to the maximum voltage.