---
title: HMCharacteristicTypeIdentify
framework: homekit
role: symbol
role_heading: Global Variable
path: homekit/hmcharacteristictypeidentify
---

# HMCharacteristicTypeIdentify

A control you can use to ask the accessory to identify itself.

## Declaration

```swift
let HMCharacteristicTypeIdentify: String
```

## Discussion

Discussion Use the corresponding write-only Boolean value to ask the accessory to identify itself in the physical world. The identification mechanism, if supported, is specific to the accessory. For example, a light bulb might change state briefly, flashing on or off, to indicate that it has received this command.

## See Also

### Accessory identification

- [HMCharacteristicTypeName](homekit/hmcharacteristictypename.md)
- [HMCharacteristicTypeVersion](homekit/hmcharacteristictypeversion.md)
- [HMCharacteristicTypeLogs](homekit/hmcharacteristictypelogs.md)
- [HMCharacteristicTypeAdminOnlyAccess](homekit/hmcharacteristictypeadminonlyaccess.md)
- [HMCharacteristicTypeHardwareVersion](homekit/hmcharacteristictypehardwareversion.md)
- [HMCharacteristicTypeSoftwareVersion](homekit/hmcharacteristictypesoftwareversion.md)
- [HMCharacteristicTypeLabelIndex](homekit/hmcharacteristictypelabelindex.md)
- [HMCharacteristicTypeLabelNamespace](homekit/hmcharacteristictypelabelnamespace.md)
- [HMCharacteristicTypeActiveIdentifier](homekit/hmcharacteristictypeactiveidentifier.md)
- [HMCharacteristicTypeIdentifier](homekit/hmcharacteristictypeidentifier.md)
- [HMCharacteristicTypeInputDeviceType](homekit/hmcharacteristictypeinputdevicetype.md)
- [HMCharacteristicTypeInputSourceType](homekit/hmcharacteristictypeinputsourcetype.md)
- [HMCharacteristicTypeConfiguredName](homekit/hmcharacteristictypeconfiguredname.md)