Swift example of iterating over all known Bluetooth devices on macOS

bt.swift

import IOBluetooth
// See https://developer.apple.com/reference/iobluetooth/iobluetoothdevice
// for API details.

class BluetoothDevices {
  func pairedDevices() {
    print("Bluetooth devices:")
    guard let devices = IOBluetoothDevice.pairedDevices() else {
      print("No devices")
      return
    }
    for item in devices {
      if let device = item as? IOBluetoothDevice {
        print("Name: \(device.name)")
        print("Paired?: \(device.isPaired())")
        print("Connected?: \(device.isConnected())")
      }
    }
  }
}

var bt = BluetoothDevices()
bt.pairedDevices()

Any way to get this to detect Bluetooth LE devices too? it doesn't seem to detect them.

Sorry, I haven't tried to detect any BTLE devices. What kind of thing are you trying and failing to detect? 🤔

Hi James, it seems to detect my 'normal' Bluetooth devices perfectly. Any Bluetooth LE devices are not detected, for example my Apple mouse which is normal bluetooth is picked up, but my Microsoft Modern Wireless Mobile Mouse is not.
I believe IOBluetooth should be able to handle both normal and LE on the Mac, I wondered if there was an easy way to get this to work?

I believe IOBluetooth should be able to handle both normal and LE on the Mac, I wondered if there was an easy way to get this to work?

Good question. Unfortunately I haven't needed to detect any bluetooth devices using this code snippet lately. I expect, given it's been six years, that the state of the art has moved on. I suggest hitting the latest Apple developer reference docs. Good luck! 🤞

I was having issues with IOBluetoothDevice.pairedDevices() always returning an empty array but I found out that it is because we need the Bluetooth entitlement:

	<key>com.apple.security.device.bluetooth</key>
	<true/>

This on macOS 13.4 (Ventura)