# EAAccessoryDidConnect A notification that the system sends when an accessory becomes connected and available for your application to use. ``` static let EAAccessoryDidConnect: NSNotification.Name ``` ## Discussion The notification object is the shared accessory manager. The `userInfo` dictionary contains an , whose value is an object representing the accessory that is now connected. If a Bluetooth accessory was selected by the user in the Bluetooth picker, this dictionary contains the key. Before delivery of this notification can occur, you must call the method to let the system know you are interested in receiving this notification. After receiving this notification, always check the array of the newly connected accessory object to verify that the required protocol is present before trying to open a session. In some cases, the system may send the connection notification before authentication has completed, resulting in an empty array and a subsequent disconnection message. If this happens, the system sends another connection message later, when authentication succeeds. > Important: > iPhone and iPad apps running on Macs with Apple silicon never receive this notification. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)