VRTI
With VRTI (VR Treadmill Interface) you can control your Bluetooth-enabled treadmill, and translate its movement into your game. This enables you to take walks with your friends in VRChat, or exercise in your favourite VR (or even non-VR) games.
VRTI provides movement input to your game, either over OSC in the case of VRChat, or by emulating a virtual Xbox controller for other games (XInput). The speed at which you walk in-game is determined by the speed of your treadmill.
VRTI communicates with your treadmill over Bluetooth (Low Energy). Please check the current list of supported devices to see if your treadmill is compatible. Currently, VRTI only supports various KingSmith WalkingPad models, but it is planned to receive FTMS support in order to support more treadmills.
Read on in the next section to find out how to get started!