Wii-mote to emulate light gun games

This is an archive of a topic from NESdev BBS, taken in mid-October 2019 before a server upgrade.
View original topic
Wii-mote to emulate light gun games
by on (#199645)
Is there a way to use the wii-mote as a zapper for light gun games like Duck Hunt and Wild Gunman on the Wii? (Know they are available on Wii U) Maybe also for other systems like SNES, Genesis, PS1 or arcade as well?

Have tried on emulators on PC with the Dolphin bar, but it's shaking to much outside the Dolphin Emulator :(
Re: Wii-mote to emulate light gun games
by on (#199657)
FCE Ultra GX supports the Wii Remote as a Zapper in a limited capacity. It doesn't support dual guns (for Chiller and Zap Ruder) nor controller plus light gun (for Duck Hunt and Gotcha!). I don't remember whether it was this emulator, but one emulator I know of moves the emulated barrel only when the trigger is pulled (which breaks Zap Ruder and the Action 53 menu).

See also feeding a cropped composite signal to the gun's photodiode through an LED through an AVR MCU

The cursor through Mayflash's DolphinBar shakes because the camera on the Wii Remote is only 128x96 pixels. The Wii Remote can use gray levels of its camera's image to locate the Sensor Bar's emitters to a higher precision, but not at all sensitivity settings. The cursor in Wii games doesn't shake because they apply smoothing to the raw coordinates read from the Remote.
Re: Wii-mote to emulate light gun games
by on (#199658)
The Wiimote would act as a glorified mouse for zapper games, not as a light gun.