How to set up PureSwift Bluetooth for an iOS app?

Use the DarwinGATT library as a dependency, which integrates with Apple's CoreBluetooth backend. Add it via Swift Package Manager and import Bluetooth to access the consistent API, following the platform-specific instructions in the README.

PureSwift Bluetooth vs CoreBluetooth: which should I use for iOS?

Use PureSwift Bluetooth if you need cross-platform compatibility (e.g., for sharing code with Linux or Android) or advanced protocol control. Stick with CoreBluetooth for simpler, iOS-only apps where native APIs are sufficient and more straightforward.

Can PureSwift Bluetooth work on a Raspberry Pi?

Yes, for Linux-based Raspberry Pi setups, use the BluetoothLinux package with the BlueZ backend for central/peripheral roles. For Pi Pico W, the BTStack integration supports peripheral mode, as noted in the platforms table.

How to implement a GATT server with this library?

Leverage the GATT protocol implementation in the base package, but you'll need to use platform-specific libraries like GATT for Linux or DarwinGATT for Apple. Refer to the documentation and example integrations for detailed guidance.

Is PureSwift Bluetooth production-ready for Android apps?

It supports Android via the AndroidBluetooth package with JNI integration, but this is less mature than iOS/Linux backends. Test thoroughly for performance and compatibility, as community support may be limited compared to official Android Bluetooth APIs.

What's the performance overhead of using PureSwift Bluetooth?

The abstraction layer adds minimal overhead, but direct native API usage might be faster for critical tasks. However, the trade-off is worth it for cross-platform consistency, and backend integrations are optimized for each platform.

Bluetooth — Swift Bluetooth SIG Library Suite

What is Bluetooth?

Bluetooth is a Swift library suite that implements Bluetooth SIG specifications and protocols for cross-platform development. It provides foundational support for both Bluetooth Classic (BR/EDR) and Bluetooth Low Energy, enabling developers to build Bluetooth applications across macOS, iOS, Linux, Android, WebAssembly, and embedded systems. The library solves the problem of fragmented Bluetooth development by offering a consistent Swift API that works with native platform backends.

Target Audience

Swift developers building Bluetooth applications across multiple platforms, including iOS/macOS app developers, Linux server developers, Android app developers, and embedded systems engineers working with microcontrollers.

Value Proposition

Developers choose this library because it provides a pure Swift implementation of Bluetooth protocols with consistent APIs across all supported platforms, eliminating the need to learn different Bluetooth stacks for each target environment. Its comprehensive protocol support and extensive platform compatibility make it uniquely valuable for cross-platform Bluetooth development.

Overview

Swift Bluetooth library

Use Cases

Best For

Building cross-platform Bluetooth applications in Swift
Developing Bluetooth Low Energy devices for iOS and Android
Creating Bluetooth-enabled IoT applications on embedded systems
Implementing Bluetooth Classic protocols in Linux applications
Developing WebAssembly applications with Bluetooth capabilities
Building Bluetooth peripheral devices on microcontrollers like ESP32 or nRF52840

Not Ideal For

Projects not using Swift or planning to migrate away from Swift
Simple, single-platform apps where native Bluetooth APIs (e.g., CoreBluetooth for iOS) are sufficient and easier to implement
Teams needing high-level, out-of-the-box Bluetooth UI components or abstractions for rapid prototyping
Enterprise applications requiring vendor-backed support, SLAs, or guaranteed long-term stability

Pros & Cons

Pros

Extensive Cross-Platform Support

Works across macOS, iOS, Linux, Android, WebAssembly, and embedded systems like ESP32, as detailed in the platform table, providing a unified Swift API for diverse environments.

Comprehensive Protocol Implementation

Implements core Bluetooth SIG specifications including GAP, GATT, HCI, and L2CAP, supporting both Classic and Low Energy protocols for robust Bluetooth development.

Native Backend Integration

Leverages platform-specific stacks like CoreBluetooth for Apple and BlueZ for Linux, ensuring optimal performance while maintaining a consistent API, as shown in the backend library mappings.

Embedded Systems Readiness

Supports microcontroller platforms such as Pi Pico W and nRF52840 through integrations like BTStack and Zephyr, making it ideal for IoT and embedded Bluetooth projects.

Cons

Complex Setup and Fragmentation

Requires managing multiple dependent packages for different platforms (e.g., DarwinGATT, BluetoothLinux), increasing integration complexity and potential dependency issues.

Low-Level Focus

Primarily provides foundational protocol APIs without high-level abstractions, so developers must build user-facing features like device pairing or UI components from scratch.

Community-Driven Limitations

As an open-source project, it lacks formal support channels and may have slower updates or fewer resources compared to vendor-backed SDKs, posing risks for critical production use.

Bluetooth

What is Bluetooth?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?

Bluetooth

What is Bluetooth?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?