@pinokiooo i'm not an expert (i did this once, long ago, with 2 mouses), but i remember dual pointer devices need udev as retroarch's input driver, and you might also need to set appropriate mouse indexes for each players in retroarch's input settings.

So I was able to make this work by simply unplugging the mouse from the pi, leaving the controller settings in retroarch for fceumm set to auto NOT zapper, and then under settings change zapper mode to mouse.

My wminputA file is as follows:

#IR for mouse REL - fps style
#Plugin.ir_fps.X = REL_X
#Plugin.ir_fps.Y = REL_Y

#ir_ptr
Plugin.ir_ptr.X = ~ABS_X
Plugin.ir_ptr.Y = ~ABS_Y

#custom buttons
Wiimote.A = BTN_RIGHT
Wiimote.B = BTN_LEFT
Wiimote.Up = KEY_UP
Wiimote.Down = KEY_DOWN
Wiimote.Left = KEY_LEFT
Wiimote.Right = KEY_RIGHT
Wiimote.Minus = KEY_ESC
Wiimote.Plus = KEY_ENTER
Wiimote.Home = KEY_LEFTALT

Wiimote.1 = KEY_LEFTCTRL
Wiimote.2 = KEY_SPACE

Nunchuk.C = KEY_C
Nunchuk.Z = KEY_Z

#plugin for nunchuk stick
Plugin.nunchuk_kb.Up = KEY_W
Plugin.nunchuk_kb.Down = KEY_S
Plugin.nunchuk_kb.Left = KEY_A
Plugin.nunchuk_kb.Right = KEY_D

Plugin.led.Led1 = 1

#EOF

#IR for mouse REL - fps style
#Plugin.ir_fps.X = REL_X
#Plugin.ir_fps.Y = REL_Y

works as a mouse in zapper games BUT not even close to as well as

#ir_ptr
Plugin.ir_ptr.X = ~ABS_X
Plugin.ir_ptr.Y = ~ABS_Y

so I'd use the ir_prt not ir_fps mapping.

I've found that if you forget to unplug your mouse before you start the game you can simply unplug it and the wiimote will take over immediately as the mouse.

If using a wireless mouse you must unplug the dongle not just turn the power off to the mouse. This could be problematic for wireless keyboard/mouse combos as you have to unplug the dongle and lose both keyboard and ouse function.

So far I havent been able to get the hot keys to work in game (even thought they work fine in emulationstation) to exit the game and have to use the keyboard for that unless you have a gamepad installed (which doesnt interfere with the wiimote as a mouse as a zapper) then you can use the game pad to exit the game.

@escc1986 said in Lightgun Question : How To Use Duel Wiimotes with Dolphenbar ?:

My Question is Could you use 2 Dolphen bars and use 2 wiimotes to play 2 player ligh gun games on the pi4 ... if so does any one know how to do it ?

I've never tried (I only have one bar) but I think that's how it is supposed to work. I suppose you use the bar in mode 2? This mode only supports one connected Wiimote. :(

or Could you use 2 wii motes on 1 bar ?

This would work in mode 4, right? This mode is used for the dolphin emulator, and I think it doesn't work with Retropie without proper drivers.

There is a link I found recently, where someone made a high-precision Wiimote "driver" that works with 4 IR LEDs around the TV set. I suppose that this works a little like the Sinden Gun, but I have not come around to try this. Maybe if you have the time and dedication you could try this. Maybe it even works with multipe Wiimotes, I don't know?!

Theory : im thinking but not certain , but maby i can have/enable duel mouse then it could work possibly ... but how do you enable duel mouse on retroarch on pi4 ?
for mame2003 games

As I said, I have never tried this. Maybe you can in a fist step try getting it to work with one Dolphin Bar (in mode 2) and a regular mouse?

@cameronball That's how to connect it, I want to map it out in emulationsation.
Thanks for the vote through.

@Unknown you've been told to stop bumping posts before. please take a day to absorb that message.

After a fair bit of trial and error, just wondering if anyone has any further pointers - could a fullscreen window (rather than just fullscreen) potentially work for this? I'm envisaging the full screen being the size of the widescreen, with the window being 4:3 - potentially the emulator would still register the hit outside of the displayed screen. I'm struggling with the Retroarch GUI options for this though.

@quicksilver I already have, many times.
I am talking about the axis, nothing works with the axis

Yes, they do. However you must buy a MayFlash Dolphin Bar. After that, you can use the Wiimote as a lightgun.

@Efriim

Thank you! This fixed it. Player 2 is not set up yet as I am waiting for the second dolphinbar to arrive from Amazon which is tomorrow :)

I was somewhat deceptive in my question gathering as I think this is entirely unrelated to the sixaxishelper, as I haven't actually gotten to use the wii controller until now.

I have tried removing and syncing the devices from bluetooth config menu and also bluetoothctlthey sync just fine.

/proc/bus/input/devices lots of things.
Logitech* AnywhereMX & K350 & K400
Sony Playstation(r)3* Controller & Motion Sensors
Nintendo Wii Remote* Accelerometer & IR & _Remote & Motion Plus (lists 4 inputs)

So my question could have been is the Wii Motion Plus incompatible? I searched the forums but I ignored that they go on and on without answers.
It syncs fine, and the jstest buttons respond, it is some mapping overlay, but also there is this Traceback in joy2key. It is very close to working. But very close could be miles, underground.

I have a hundred tabs open and a link to this was broken, will go here https://github.com/retropie/retropie-setup/wiki/Wiimote-Controller
and hopefully it will work.

@BGallagherLA hello do you have a list of the lightgun games for advanced name?

This actually helped:

1 year ago
OK I figured it out. I had to set the hotkeys manually rather than rely on the autoconfig.
For anyone else out there with this issue, what you need to do is open the RetroPie menu. Open RetroArch.
Go to Settings>Input>Input Hotkey Binds.
Go down to Quit RetroArch, and set that to your Start button.
Next go down to Enable hotkeys, and set that to your Select button.
Go back up to the Main Menu within RetroArch.
Open Configurations.
Save Current Config.
Back out and exit RetroArch.
You're good to go now for most emulators.

https://www.reddit.com/r/RetroPie/comments/5t44qq/unable_to_exit_emulators_help/

@mediamogul i havent seen his video

but yes most emulators that use mice work. Dosbox works too for lightgun games

Yes. I have it set up with a Wiimote and a Dolphinbar. You plug the Dolphinbar into the first USB port (top left), which is the Player 1 slot. Set the DolphinBar to Mode 2 and sync the Wiimote with the Dolphinbar (you have to press the Sync button on both at the same time). That's pretty much it.

As for the games, the majority of the gun games I have are arcade games (Lethal Enforcers, Operation Wolf, etc), and just to separate everything from my regular arcade sets (Mame4All, FBA), I put all of my gun games into the Arcade folder, and set the default emulator for every game in that folder to AdvMame 1.4 (If you don't have it on your setup you may have to install it from the RetroPie menu). There is also now support for NES (Duck Hunt, etc), just make sure you have the default emulator for the gun games set to the lr-fceumm emulator, since it won't work in nestopia. Sadly, there is no console support for SMS or Genesis/Megadrive yet, as far as I know. Let me know if you have any other questions.

Well, I don’t know what I did, but the Wiimote suddenly started working... weird...

@markwkidd Thanks Mark.

problem solved, my dolphin bar is broken, only one side is lit.