Bluetooth mesh library for iOS

The nRF Mesh library allows to provision Bluetooth mesh devices into a mesh network, configure them and send and receive messages.

The library is compatible with the following Bluetooth specifications:

• Mesh Profile 1.0.1 (with experimental support for Mesh Protocol 1.1)
• Mesh Model 1.0.1
• Mesh Device Properties 2
• Configuration Database Profile 1.0.1

See documentation for more information.

Note

Implementing ADV Bearer on iOS is not possible due to API limitations. The library is using GATT Proxy protocol, specified in the Bluetooth Mesh Profile 1.0.1, and requires a Node with Proxy functionality to relay messages to the mesh network.

Supported features

1. Provisioning with:
   • OOB¹ Public Key (most secure)
   • Input and Output OOB
   • No OOB (insecure)
   • Experimental support for enhanced security added in Mesh Protocol 1.1.
2. Configuration, including managing keys, publications, subscription, and heartbeats (both as client and server).
3. Support for client and server models.
4. Groups, including those with virtual labels.
5. Scenes (both as client and server).
6. Managing proxy filter.
7. IV Index update (handled by Secure Network beacons).
8. Key Refresh Procedure (using ConfigKeyRefreshPhaseSet messages, not Secure Network beacon).
9. Heartbeats (both as client and server).
10. Exporting network state with format compatible to Configuration Database Profile 1.0.1, including partial export.
11. Option to use own transport layer with default GATT Bearer implementation available.

NOT (yet) supported features

The following features are not (yet) supported:

1. The rest of models defined by Bluetooth SIG - PRs are welcome!*
2. IV Index update (initiation) - not a top priority, as other nodes may initiate the update.
3. Health server messages - in our TODO list.
4. Remote provisioning - in our TODO list.
5. Device Firmware Update (DFU) - in our TODO list.

How to start

The library is available using CocoaPods, SPM and Carthage. For details, check out Setting up the library.

nRF Mesh sample app

Most of the features listed above are demonstrated in nRF Mesh sample application.

Use pod try to install and set up the sample app when using CocoaPods.

The app is available on App Store.

Supported features

1. Provisioning with all available features.
2. Configuration of local and remote nodes.
3. Managing network (provisioners, network and application keys, scenes), resetting and exporting configuration.
4. Managing groups, including those with virtual labels.
5. Sending group messages.
6. UI for local models, which include:
   • Generic OnOff Client and Server,
   • Generic Level Client and Server,
   • Simple OnOff vendor model by Nordic.
7. Support for some server models:
   • Generic OnOff,
   • Generic Level,
   • Generic Power OnOff,
   • Generic Default Transition Time,
   • Vendor models.
8. Scenes, both as client and server.
9. Automatic connection to nearby nodes and automatic proxy filter management.

Testing

All features are tested against nRF5 SDK for Mesh and nRF Connect SDK based mesh devices.

Requirements

• Xcode 13.3 or newer.
• An iOS 13.0 or newer device with BLE capabilities.

Optional

• nRF5 Development Kit(s) for developing and testing firmware.

Feedback

Any feedback is more than welcome. Please, test the app, test the library and check out the API.

Use Issues to report a bug, or ask a question. We also encourage to submit Pull Requests with new features or bug fixes.

License

BSD 3-Clause License.

Acknowledgments

This product depends on CryptoSwift software developed by "Marcin Krzyzanowski" (http://krzyzanowskim.com/).

Footnotes

1. OOB - Out Of Band ↩