Is it possible to connect my headphones from swift code?

It’s possible to connect to non-BLE devices in iOS with Swift using the External Accessory framework. However, to interact with the device and send/receive data requires detailed knowledge of the manufacturer’s device specifications - which are usually not available. For example, I wanted to connect to a blood pressure monitor via a Swift app, but the device required a sign-in process and the manufacturer refused to provide documentation - probably because their own app collected and stored user data on the company’s server.

good luck and regards, Michaela