Hacking UsendMii

[admin]

UsendMii is a Windows (32-bit and 64-bit) and macOS (32-bit) software that will let use your Wii U GamePad on your computer. UsendMii will also allow you to view MP4 videos from your PC on the Wii U GamePad and your TV.

Official web site
Site Web officiel (French)

Downloads
UsendMii Windows 32-bit
UsendMii Windows 64-bit
UsendMii macOS 32-bit

How To Use
PC Inputs
Wii U Internet Browser

• Select Internet Browser for the Client Type.
• Choose an available port for the web server. By default port 80 is used.
• Map the GamePad buttons to the wanted keys.
  • Left-click on the button to detect the input (keyboard or mouse).
  • Right-click on the button to show a pop-up menu. The Clear, ViGEm, vJoy, Detect and Mouse option could be used to set a key.
• Click on the Start button.
• Open the Wii U Internet Browser and use one the URLs shown in UsendMii (URL to use in the Wii U Internet Browser).
• In the menu tap on the PC Inputs button.
• You may need to click on the Refresh button each time UsendMii starts.

Homebrew

• Select Homebrew for the Client Type.
• Choose an available port for the UDP server. By default port 4242 is used.
• Map the GamePad buttons to the wanted keys.
  • Left-click on the button to detect the input (keyboard or mouse).
  • Right-click on the button to show a pop-up menu. The Clear, ViGEm, vJoy, Detect and Mouse option could be used to set a key.
• Click on the Start button.

Wii U

• Start MiisendU Wii U.
  • Download latest version from GitHub.
  • Extract the archive content to the /wiiu/apps/ folder on your SD card.
  • Launch MiisendU Wii U from the Homebrew Launcher.
  • Change the IP address to the one shown in UsendMii (IP address to use in the homebrew).
  • Click on the A button.

Wii

• Start MiisendU Wii.
  • Download latest version from GitHub.
  • Extract the archive content to the /apps/ folder on your SD card.
  • Launch MiisendU Wii from the Homebrew Launcher.
  • Change the IP address to the one shown in UsendMii (IP address to use in the homebrew).
  • Click on the A button.

Video

• Use the same steps as above.
• Choose a Media Folder where MP4 videos are stored.
• Tap on the Videos button.
• On the Wii U GamePad click on the video you want to view.

Screenshot

• Use the same steps as above.
• Choose a Media Folder where to upload a screenshot.
• Tap on the Images button.
• Click the Select button.
• Pick the image to save. The one on the TV or the one on the Wii U GamePad.
• Click the Upload button.
• A new JPG file should now be available in your Media Folder.

How Does It Work

• UsendMii is an HTTP server that delivers Web content to the Wii U Internet Browser software.
• The Internet Browser uses specialized JavaScript to obtain button states of the GamePad.
• The button states are converted to JSON and sent to UsendMii using WebSocket protocol. POST request are used for version before 4.0.0.
• When received, UsendMii will simulate keystrokes, mouse motions, or button clicks.