Custom KiCad breakout PCBs designed for the G-Wii portable Wii project. These boards replace the dozens of individual signal wires typically needed between the two halves of a portable Wii build with clean, modular PCBs and FFC (flat flex cable) connections.
Built in KiCad 9.0.
The central connector hub. Interfaces with the trimmed Wii motherboard and consolidates all control, audio, and video signals into organized connectors. Features a GC+2.0 controller interface IC and a UAMP audio amplifier, routing button inputs (A/B/X/Y/Z, D-pad, triggers), analog stick axes, and stereo audio through a single interconnect system.
Video and signal breakout board that routes RGB video (RED, GREEN, BLUE), sync signals (H-Sync, V-Sync), audio lines, and control signals between the two halves of the portable via FFC cables — replacing what would otherwise be 20–30 individual wires.
Face button PCB for the A, B, X, Y, and Z buttons. Uses ALPS SKEYACA010 tactile switches and routes all button signals through a 6-pin connector back to the daughterboard. Also includes a mount for a common-anode tricolour (RGB) LED.
Directional pad button PCB for Up, Down, Left, and Right inputs.
Analog joystick breakout board. Provides connectors for joystick axis signals and mounting, routing back to the daughterboard.
Tactile switch mounting board for auxiliary controls (Start, Select, Home, volume, etc.). Includes signal conditioning with pull-up resistors and decoupling capacitors.
The footprint labelled SYNC can act as either SOURCE or Bluetooth sync button depending on jumper configuration — position both jumpers at 1&2 for video source, or 2&3 for BT sync.
The resistor ladder on this board is designed around the ZJ050NA-08C-KYV-N2 black VGA driver board (board reference](https://bitbuilt.net/forums/threads/resistor-value.6798/)).
4LAYER_FOOTPRINTS.pretty— Custom footprints for 4LayerTech components (GC+2.0, PMS, UAMP, etc.)4LAYER_SCHEMATIC_SYMBOLS— Matching schematic symbolsALPS.pretty— ALPS SKEYACA010 tactile switch footprint (custom library — note: one of the GND pads is on the wrong side in the current footprint)
The G-Wii is a portable Wii console build from the BitBuilt community. It uses a trimmed Wii motherboard fitted into a custom handheld case. These breakout boards make wiring significantly cleaner and more reliable by consolidating signals onto PCBs connected via FFC cables.
Open hardware — use and modify freely for your own portable Wii builds.
Note: These boards are not perfect and are provided as-is. You are more than welcome to modify them to suit your build.