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kotlinlang

To all Bluetooth Low Energy Android developers: I'm MAKING GATT GREAT AGAIN! :champagne: :tada: 
This is also an example of the power of Kotlin <#C1CFAFJSK|coroutines> which will save us from callback hell :fire:
I'm really really thrilled about publishing this work under Apache 2 and defeating the god `BluetoothGattCallback`.
Library code + handset and wearable sample apps are here: <https://github.com/Beepiz/BleGattCoroutines>