QuickBLE

A simple wrapper for CoreBluetooth to easily connect to Bluetooth LE devices and read/write it's values. It is not intended as a fully-featured library. You can consider it as a simple prototyping tool to get a connection to your device up and running quickly.

Take a look at the iOS demo in the Example directory to see how to use it. It shows how to turn on/off the LED of an Arduino 101.

Usage

QuickBLE has only a four methods to connect and manipulate the values of a connected peripheral:

Initialization

This static function returns an initialized QuickBLE object and starts the service discovery / connection:

class func start(service: String, delegate: QuickBLEDelegate?) -> QuickBLE

Example

helper = QuickBLE.start(service: "arduino", delegate: self)

Reading a value

This function reads the value of the specified characteristic and calls the passed closure with the result:

func read<T:CharacteristicValue>(uuid: String, result: @escaping (_ value: T?) -> Void)

Example

helper.read(uuid: "led") { (value : Int8?) in
    // evaluate value
}

Writing a value

The following sets a value for the specified characteristic unique identifier:

func write<T:CharacteristicValue>(value: T, for uuid: String)

Example

helper.write(value: Int8(1), for: "led")

Stop

Cancels the connection to the peripheral.

func stop()

Example

helper.stop()

Supported Types

QuickBLE currently supports the following types for characteristic values:

• String
• Int8

This list can be easily expanded with additional types by implementing the following protocol:

public protocol CharacteristicValue {
    static func getValue(fromData data: Data?) -> Self?
}

Attributions

• Based on Hello Bluetooth by Nebojsa Petrovic

License

QuickBLE is available under the MIT license. See the LICENSE file for more info.

Recent Changes

The release notes can be found here.