I know I'm super late to the party here, but I've decided to buy the alien extermination guns from aliexpress and run them on a pedestal. Assuming I can find the time the idea is I would add the games/emulators slowly, a batch at a time and record a video for each, walking you all through the process. I've watched videos on these guns and there seems to be issues with certain games and emulators. Since I have some coding experience the hope is I can find better solutions for these games than using joy2key and the keypress mamehooker function. Anyway, enough of that.....
So I've got a gun on order and it's on it's way on the slow boat from China. The wiring of these guns isn't super clear. The picture on the product page has the wires labeled like so:
Black = Ground
Red = 24v (recoil)
Yellow = 12v (leds)
Green = Vibrate
It's the green wire that is throwing me off. I don't see a mention of it anywhere and I don't know if that is a manual trigger of the solenoid or a redundant wire or what. Any insight would be great.