---
title: HMCharacteristicTypeRotationSpeed
framework: homekit
role: symbol
role_heading: Global Variable
path: homekit/hmcharacteristictyperotationspeed
---

# HMCharacteristicTypeRotationSpeed

The rotation speed of an accessory like a fan.

## Declaration

```swift
let HMCharacteristicTypeRotationSpeed: String
```

## Discussion

Discussion The corresponding value is a floating point number representing the percentage of the maximum speed.

## See Also

### Fans

- [HMCharacteristicTypeCurrentFanState](homekit/hmcharacteristictypecurrentfanstate.md)
- [HMCharacteristicTypeTargetFanState](homekit/hmcharacteristictypetargetfanstate.md)
- [HMCharacteristicTypeRotationDirection](homekit/hmcharacteristictyperotationdirection.md)
- [HMCharacteristicTypeSwingMode](homekit/hmcharacteristictypeswingmode.md)