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raspberry-switch-control

Emulate Nintendo Switch USB Controller with Raspberry Pi

Credit: This project heavily relies on https://github.com/mzyy94/nscon.

Hardware requirements

  • Raspberry Pi Zero W (Supposedly, it works with a regular pi 4, via the USB-C port.)

Set up Raspberry Pi Zero

  1. Install libcomposites for the USB gadget mode. (From https://github.com/milador/RaspberryPi-Joystick)

     echo "dtoverlay=dwc2" | sudo tee -a /boot/config.txt
 echo "dwc2" | sudo tee -a /etc/modules
 echo "libcomposite" | sudo tee -a /etc/modules

  2. Install on the raspberry pi

     go get -v -u -t github.com/omakoto/raspberry-switch-control/nscontroller/cmd/...

  3. Create the USB gadget. Do it once after every reboot.

     sudo $HOME/go/src/github.com/omakoto/raspberry-switch-control/scripts/switch-controller-gadget

Control Nintendo Switch with Joystick on a PC (via Raspberry Pi)

  1. Plug in the Raspberry Pi to the Switch. If using a Pi Zero, just connect via the micro-USB cable.

  2. Connect a joystick (only the following ones are supported and tested) to a host PC.

    1. Nintendo Pro controller
    2. X-Box One controller
    3. PS4 controller

  3. On the host PC, install the software:

     go get -v -u -t github.com/omakoto/raspberry-switch-control/nscontroller/cmd/...

  4. On the host PC, run it:

     nsfrontend -j /dev/input/js0 -o >(ssh pi@$PI_ADDRESS go/bin/nsbackend)

  5. Press [enter] on the console to finish.

TODOs

  • Autofire on/off
  • Macro

References

  1. Control switch from a smart phone
    1. https://mzyy94.com/blog/2020/03/20/nintendo-switch-pro-controller-usb-gadget/
    2. https://github.com/mzyy94/nscon
    3. https://gist.github.com/mzyy94/60ae253a45e2759451789a117c59acf9#file-add_procon_gadget-sh
  2. https://www.kernel.org/doc/html/v4.13/driver-api/usb/gadget.html
  3. https://github.com/milador/RaspberryPi-Joystick
  4. https://www.rmedgar.com/blog/using-rpi-zero-as-keyboard-setup-and-device-definition
  5. https://github.com/wchill/SwitchInputEmulator
  6. https://sourceforge.net/projects/linuxconsole/
  7. https://github.com/progmem/Switch-Fightstick
  8. https://sourceforge.net/p/linuxconsole/code/ci/master/tree/utils/jstest.c
  9. http://www.fourwalledcubicle.com/files/LUFA/Doc/120219/html/group___group___std_descriptors.html