Low-Poly Interactive Game Controller (Joystick) with 5 Skins and 13 Programmable Buttons, Joysticks, Gamepad Arrows, and Pressure-Sensitive Buttons | 3D Electronics | Unity Asset Store
Xbox one controller mapping [SOLVED] - Unity Answers
Button keys in Unity(Edit -> Project Settings -> Input) for using a mini bluetooth controller for your game . I struggled a lot to figure these out. : r/unity