how do I BLE connect my IOT device to an iPhone?

To connect your IoT device to an iPhone using Bluetooth, you can leverage the new AccessorySetupKit introduced in iOS 18. Here are the steps to follow:

1. Setup AccessorySetupKit: Add the necessary entries in your app's Info.plist to support Bluetooth. This includes specifying the Bluetooth services your accessory uses.

2. Discovery and Pairing: Use the AccessorySetupKit to discover and pair your accessory. The accessory picker will display nearby accessories that your app wants to pair with. With just one tap, the accessory is securely paired with your app, granting both Bluetooth and WiFi access if supported.

3. Connecting to the Peripheral: Once paired, you can retrieve the Bluetooth peripheral using its identifier and connect to it using the Core Bluetooth APIs. You can then discover its GATT services to read and get notified of updates.

4. Communication: Continue using Core Bluetooth for communication with the accessory. This involves connecting to the peripheral, discovering its services, and subscribing to characteristics for updates.

For a detailed example, you can refer to the session Meet AccessorySetupKit which demonstrates setting up digital dice and syncing roll results over Bluetooth.

Relevant Sessions

• Meet AccessorySetupKit
• What’s new in privacy

If you need more specific details or a sample project, you can download the sample project provided in the session Meet AccessorySetupKit.