HTC Vive Controller Emulation Using Arduino and Leap Motion - Hackster.io
open vr input emulator — Yaw VR Forum
open vr input emulator — Yaw VR Forum
Using the HoloLens Emulator - Mixed Reality | Microsoft Docs
Set Up the SteamVR Input System | Unreal Engine Documentation
If you don't already have OpenVR Input Emulator for Steam VR, you should get it. A 5 degree difference in the controller tilt makes a huge difference with the WMR controllers. :
Unity - Manual: Input for OpenVR controllers
Set Up the SteamVR Input System | Unreal Engine Documentation