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docs(ble): add flow diagrams to bluedroid BLE examples

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zhanghaipeng
2025-12-28 17:32:01 +08:00
parent 934970a06f
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examples/bluetooth/bluedroid/ble/ble_ancs/README.md
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@@ -5,6 +5,55 @@
The purpose of the Apple Notification Center Service (ANCS) is to give Bluetooth accessories (that connect to iOS devices through a Bluetooth low-energy link) a simple and convenient way to access many kinds of notifications that are generated on iOS devices.
## Flow Diagram
```
┌──────────────┐ ┌──────────────┐
│ ESP32 │ │ iOS Device │
│ (ANCS Client)│ │ (ANCS Server)│
└──────┬───────┘ └──────┬───────┘
│ │
│ ─────────── Connection ─────────── │
│ │
│ 1. Start Advertising │
│ ───────────────────────────────────────────────> │
│ │
│ 2. iOS connects & pairs │
│ <─────────────────────────────────────────────── │
│ │
│ ─────────── Service Discovery ─────────── │
│ │
│ 3. Discover ANCS Service │
│ (UUID: 7905F431-B5CE-4E99-A40F-4B1E122D00D0) │
│ ───────────────────────────────────────────────> │
│ │
│ 4. Subscribe to Notification Source │
│ (UUID: 9FBF120D-6301-42D9-8C58-25E699A21DBD) │
│ ───────────────────────────────────────────────> │
│ │
│ 5. Subscribe to Data Source │
│ (UUID: 22EAC6E9-24D6-4BB5-BE44-B36ACE7C7BFB) │
│ ───────────────────────────────────────────────> │
│ │
│ ─────────── Notification Flow ─────────── │
│ │
│ 6. New notification on iOS │
│ (Call, SMS, Email, App, etc.) │
│ <─────────────────────────────────────────────── │
│ │
│ 7. Request notification details │
│ (Write to Control Point) │
│ ───────────────────────────────────────────────> │
│ │
│ 8. Receive notification attributes │
│ (Title, Message, App, etc.) │
│ <─────────────────────────────────────────────── │
│ │
┌──────┴───────┐ ┌──────┴───────┐
│ ESP32 │ │ iOS Device │
└──────────────┘ └──────────────┘
```
## How to Use Example
Before project configuration and build, be sure to set the correct chip target using: