Published November 19, 2022 © MIT

USBnunchuck_mouse

Convert a Wii Nunchuck clone to USB HID mouse using two small Adafruit boards and a cable. No soldering or wire cutting is required. The pro

BeginnerWork in progress1 hour453

Things used in this project

Hardware components

Adafruit QT Py ESP32-S3 with STEMMA QT, no PSRAM

Adafruit Wii Nunchuck Breakout Adapter - Qwiic/STEMMA QT

Adafruit STEMMA QT/Qwiic JST SH 4-pin cable

Adafruit Wii controller (Nunchuck/Wiichuck)

Software apps and online services

Adafruit CircuitPython

Story

Photo of nunchuck connected to adapter and QT Py ESP32-S3

A joystick mouse is useful to anyone having difficulty using a regular mouse. A joystick mouse only requires thumb movement while a mouse requires hand and/or arm movement. I found it is possible to add a USB interface to a Wii Nunchuk controller without any soldering or wire cutting using boards and cable from Adafruit. A small CircuitPython program reads from the nunchuck via I2C and writes HID mouse packets out the USB port.