---
title: Characteristic events
framework: homekit
role: collectionGroup
role_heading: API Collection
path: homekit/characteristic-events
---

# Characteristic events

Events based on the capabilities or characteristics of accessories.

## Topics

### Characteristics

- [HMCharacteristicEvent](homekit/hmcharacteristicevent.md)
- [HMMutableCharacteristicEvent](homekit/hmmutablecharacteristicevent.md)

### Characteristic ranges

- [HMNumberRange](homekit/hmnumberrange.md)
- [HMCharacteristicThresholdRangeEvent](homekit/hmcharacteristicthresholdrangeevent.md)
- [HMMutableCharacteristicThresholdRangeEvent](homekit/hmmutablecharacteristicthresholdrangeevent.md)

## See Also

### Setting trigger events

- [events](homekit/hmeventtrigger/events.md)
- [updateEvents(_:completionHandler:)](homekit/hmeventtrigger/updateevents(_:completionhandler:).md)
- [Location events](homekit/location-events.md)
- [Time events](homekit/time-events.md)
- [Presence events](homekit/presence-events.md)
- [HMEvent](homekit/hmevent.md)