A complete guide to set up Head-tracking (Opentrack) - Hardware, Software and Controllers - IL-2 Sturmovik Forum
Finally done with my VR setup : r/hotas
Trackhat with CLOD
Trackir 5 - Head tracker for PC games & simulations : : Electronics & Photo
Setting up TrackIR Curves for DCS
POV vs. TrackIR - PC Hardware and Related Software - ED Forums
Tutorial to Setup TrackIR - New User Briefing Room - ED Forums
Complete-ish OpenTrack (DIY TrackIR) Guide 2.0 : r/starcitizen
Breathing new live into EF2000 with TrackIR and MFDs :-) : r/hotas
Wireless TrackIR Clip : r/hotas
TrackIR 5 Updated Settings and Demo
Fast Setup, Easy to use Head Tracking - TrackIR Showcase