Application for streaming heart rate info from pulseoximeter straight to VRChat without phone/web apps by using desktop Bluetooth and VRChat OSC
- Pulseoximeter with BluetoothLE (Low energy) support, such as CooSpo H808S (Tested only with that device)
- Bluetooth adapter on PC
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Open Bluetooth settings
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Press "Add Bluetooth or other device"
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Select "Bluetooth" and connect your pulseoximeter
For Windows 11 you must set Advanced bluetooth discovery
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Open HeartRateMonitorVRC
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Press "Select device", choose your pulseoximeter and wait
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Wait until it says "Subscribed to HR notifications" and shows your BPM
Happens if your device is occupied by another device (i.e. connected to another device). If you're reconnecting then simply wait a bit and try again
HeartRateMonitor sends OSC messages to VRChat port (9000) using parameters from HRtoVRChat_OSC and vrc-osc-miband-hrm
| Address | Type | Range | Description |
|---|---|---|---|
| /avatar/parameters/onesHR | int | 0-9 |
Ones spot in the Heart Rate reading |
| /avatar/parameters/tensHR | int | 0-9 |
Tens spot in the Heart Rate reading |
| /avatar/parameters/hundredsHR | int | 0-9 |
Hundreds spot in the Heart Rate reading |
| /avatar/parameters/isHRBeat | bool | True/False |
Estimation on when the heart is beating |
| /avatar/parameters/HRPercent | float | 0-1 |
Converted range of HR |
| /avatar/parameters/FullHRPercent | float | -1-1 |
Other converted range of HR |
| /avatar/parameters/HR | int | 0-255 |
Exact HR value |
| /avatar/parameters/Heartrate2 | float | 0-1 |
Converted range of HR |
To build the project you need to manually include Windows.winmd and System.Runtime.WindowsRuntime.dll in the project, which may be located here:
- C:\Program Files (x86)\Windows Kits\10\UnionMetadata\10.0.22621.0\Windows.winmd (Also shipped in Release)
- C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETCore\v4.5\System.Runtime.WindowsRuntime.dll