HomeKit

Last updated
HomeKit
Other namesHome
Developer(s) Apple Inc.
Operating system iOS, iPadOS, macOS, watchOS, and tvOS
Type Home automation

HomeKit, also known as Apple Home, [1] is a software framework and communication protocol developed by Apple Inc. that lets users configure, communicate with and control smart-home appliances using Apple devices. [2] It provides users with a way to automatically discover such devices and configure them. [2] By designing rooms, items and actions in HomeKit, users can enable automations in the home through a voice command to Siri or through Apple's Home app or third party apps. [3] With HomeKit, developers are able to create complex applications in order to manage accessories at a high level. [2]

Contents

Overview

HomeKit was first introduced on iPhones and iPads on September 17, 2014, with iOS 8. The framework allowed third-party apps to interface with HomeKit devices using Siri and allow remote access through home hubs. [4]

HomeKit was created to make tasks inside the home easier and provide users with methods and tools to change and adapt certain home capabilities to their specific desires. [2] HomeKit manages connected home appliances through the HomeKit Accessory Protocol (HAP). Messages from HomeKit are continuously sent to powered devices, which incorporate fields which recognize the specific accessory and what category it is under. Each category has a code that is used to identify what the device is. It also identifies with the Global State Number (GSN). This number is increased each time that the state of the accessory is altered. Like most Apple devices, Apple Continuity Protocols are used. Continuity protocols consist of wireless technologies, such as Bluetooth and Wi-Fi. They can be conducted through device-to-device connection. [5]

HomeKit uses Wi-Fi, Bluetooth and Thread protocols to communicate with devices. [6] [7] Manufacturers of HomeKit-enabled devices are required to enroll in the MFi Program. [8] Apple also used to provide documentation for creating non-commercial HomeKit accessories to any member of the Apple Developer Program. [9] Initially, all HomeKit-based products were required to include an encryption co-processor. [10] The latter requirement was later changed in iOS 11, which added support for software-based authentication. [11] Equipment manufactured without HomeKit support can be enabled for use through a gateway product, such as a bridge that connects those devices to the HomeKit service. [12]

HomeKit primarily competes with smart home standards from Amazon and Google. As of 2024, Apple lists over 1,000 devices compatible with HomeKit, compared to 10,000 for Google and 85,000 for Amazon. [13] [14]

Home app

The Home app, which unifies all devices into one app, was introduced on iPhones and iPads on September 13, 2016, with iOS 10, and on Apple Watches with watchOS 3. [15] The app also added support for automations using a home hub, and preprogrammed scenes which can set multiple devices using a single command. [16] HomeKit toggles can also be added to the Control Center, allowing control over connected devices without having to use Siri or open the Home app. The Home app was introduced on Macs with macOS 10.14 Mojave, which was released on September 24, 2018.

With Apple's operating systems released in 2022, including iOS 16 and macOS Ventura, Home received a major redesign to make the app easier to navigate, and allows users to upgrade to a new architecture which was rebuilt from the ground up to be more efficient for users with multiple HomeKit-enabled devices. [17] [18] Once a home is upgraded to the new architecture, devices using older operating systems can no longer access the Home app. iOS 18 brought guest access, hands-free unlocking of locks, in-app electricity usage integration, and the ability to unlock locks using Express Mode with an iPhone that is out of battery.

Apple TV & HomePod

Fourth-generation and newer Apple TVs can control HomeKit devices using Siri voice commands. tvOS 14, which was released on September 16, 2020, added direct control of HomeKit devices in Control Center and camera feeds and picture-in-picture monitoring for HomeKit-enabled security cameras. [19]

The HomePod supported HomeKit at launch in February 2018, as did the HomePod Mini in 2020. They lack a graphical user interface to control HomeKit devices and instead use Siri voice commands. Neither the HomePod nor Apple TV can unlock or open secure appliances like locks. [20]

Home hubs

As of iOS 16, Apple TVs (4th generation or newer) and all HomePod family speakers are fully supported as home hubs to control HomeKit appliances remotely, grant guest access, and set up automations. [21] Thread networking is supported by the HomePod Mini, second generation HomePod and Apple TV 4K (2nd generation and later). [22] [lower-alpha 1] Automations based on temperature and humidity are supported by the HomePod Mini and second generation HomePod. [23] Prior to iOS 18, the Home app automatically selected the home hub. [24]

iPads were supported as home hubs starting with iOS 10 but were phased out with iPadOS 16; iPads do not support Matter and will not function as a home hub in homes upgraded to the new architecture introduced in iOS 16, but retain all functionality introduced before iPadOS 16. [25] [26] The third-generation Apple TV only supports remote access and supported automations before iOS 10. [27]

Other standards

HomeKit Secure Routers

HomeKit Secure Routers were introduced in 2019 and allow users to limit network access for HomeKit devices, reducing potential vulnerabilities. Routers approved by the program restrict devices from accessing unauthorized services or data to minimize exposure to potential cyber threats. [28] By 2024, Apple had reportedly stopped accepting new routers into the program. [29]

HomeKit Secure Video

HomeKit Secure Video is an API introduced in 2019 that offers enhanced privacy and security for cameras and video doorbells. It allows video from approved cameras to be encrypted and stored securely in iCloud. Users can also receive intelligent notifications based on specific activities, such as recognizing people, animals, or vehicles. [28] [30]

Home Key

Home Key is a feature introduced in iOS 15 in 2021 that allows iPhones (XS or newer) and Apple Watches (Series 4 or newer) to unlock compatible NFC-equipped smart locks. Home keys are stored in the Wallet app and can be customized to use Express Mode which allows unlocking without requiring the user to authenticate with Touch ID or Face ID. iOS 18 will introduce support for hands-free home keys that use the ultra-wideband chip in iPhones (11 or newer, excluding SE models) and Apple Watches (Series 6 or newer, excluding SE models) to automatically unlock a smart lock when a user approaches it. [31]

Matter support

On December 18, 2019, Apple announced it would be working closely with Samsung, Amazon, and Google to create an open standard for smart home automation called Matter. [32] Matter aims to reduce fragmentation across different vendors, and achieve interoperability among smart home devices and Internet of things (IoT) platforms from different providers. [33] The project was delayed to fall 2022 due to "unprecedented interest" by the Connectivity Standards Alliance (CSA). [34] Version 1.0 of Matter was published on the October 4, 2022. [35] Matter has been supported by Apple devices since iOS 16.1 and its forks. [36]

Device categories

HomeKit currently supports the following device categories (an extended list): [37] [5] [38]

Garage doors, locks, security systems, and windows are categorized as secure appliances, and require a device with authentication such as an iPhone or iPad to unlock.

See also

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References

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  2. 1 2 3 4 Fogli, D.; Peroni, M.; Stefini, C. "Smart Home Control through Unwitting Trigger-Action Programming". 22nd International Conference on Distributed Multimedia Systems: 194–201.
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  4. ↑ Rossignol, Joe. "Getting Started With HomeKit: A Beginner's Guide". www.macrumors.com. Retrieved 2019-12-26.
  5. 1 2 Guillaume, Celosia; Mathieu, Cunche (2020). "Discontinued Privacy: Personal Data Leaks in Apple Bluetooth-Low-Energy Continuity Protocols". Proceedings in Privacy Enhancing Technologies. 1: 26–46 – via sciendo.
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  12. ↑ Ricker, Thomas; Kastrenakes, Jacob (January 8, 2015). "First HomeKit devices confirm Apple TV's limited role in home automation". The Verge . Vox Media . Retrieved December 26, 2016.
  13. ↑ Porter, Jon (2019-10-28). "HomeKit might be fading, but Apple's not giving up yet". The Verge. Retrieved 2020-01-05.
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  15. ↑ "How to add a home to the new Home app in iOS 10". iMore. 2016-08-23. Retrieved 2019-12-26.
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  17. ↑ Tuohy, Jennifer Pattison (2022-12-16). "How to upgrade to the new Apple Home architecture". The Verge. Retrieved 2024-08-28.
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  22. ↑ Writer, Senior. "Nanoleaf puts HomeKit-over-Thread update on back burner". TechHive. Retrieved 2022-07-15.
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  24. ↑ Tuohy, Jennifer Pattison (2024-06-14). "Apple gives Apple Home users something they've been begging for". The Verge. Retrieved 2024-07-02.
  25. ↑ Davies, Chris (2016-06-14). "No Apple TV? Your iPad can be an Apple Home Hub - SlashGear". SlashGear.com. Retrieved 2022-07-15.
  26. ↑ Peters, Jay (2022-06-28). "Apple says iPads will keep working as home hubs in iPadOS 16, but there's a catch". The Verge. Retrieved 2022-06-30.
  27. ↑ Hall, Zac (2016-09-16). "HomeKit automation no longer works with third-gen Apple TV after iOS 10 (Updated: Apple clarifies)". 9to5Mac. Retrieved 2019-12-26.
  28. 1 2 Seifert, Dan (2019-06-03). "Apple enables HomeKit support for home security cameras and routers". The Verge. Retrieved 2024-08-28.
  29. ↑ "Apple has abandoned HomeKit Secure Routers, claim vendors". AppleInsider. 2024-03-22. Retrieved 2024-08-28.
  30. ↑ "Set up security cameras in Home on iPhone". Apple Support. Retrieved 2024-08-28.
  31. ↑ Tuohy, Jennifer Pattison (2024-06-19). "You'll need to buy a new lock if you want Apple Home to "magically" unlock your door". The Verge. Retrieved 2024-08-28.
  32. ↑ Lovejoy, Ben. "Apple, Samsung, Amazon, more will agree on open standard for smart home security". 9to5Mac.com. Retrieved 18 April 2022.
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  34. ↑ Pattison Tuohy, Jennifer (17 March 2022). "Matter smart home standard delayed until fall 2022". The Verge. Vox Media. Retrieved 18 April 2022.
  35. ↑ Grün, Frank-Oliver (4 October 2022). "Here we go: matter in version 1.0 is ready". matter-smarthome.de. Retrieved 17 October 2022.
  36. ↑ "Matter support in iOS 16 - Apple Home". Apple Developer. Retrieved 2023-06-02.
  37. ↑ "iOS - Home". Apple. Retrieved 2019-12-26.
  38. ↑ "Multi Device Ecosystems". Library Technology Reports. 52. 2016.

Notes

  1. ↑ Excluding the 64GB Apple TV (third generation) without an Ethernet port.
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