Bluejay
A simple Swift framework for building reliable Bluetooth LE apps
...Make it easier to handle Bluetooth operations reliably. Take advantage of Swift features and conventions. A callback-based API. A FIFO operation queue for more synchronous and predictable behaviour. A background task mode for batch operations that avoids the "callback pyramid of death". Simple protocols for data serialization and deserialization. An easy and safe way to observe connection states. Powerful background restoration support. Extended error handling and logging support.