DroidKit

Interface with the littleBits Droid Inventor Kit using Swift.

import DroidKit

let droid = Droid()

droid.onConnect {
    droid.move(.forward, atSpeed: 0.5)
    droid.wait(for: .seconds(2))
    droid.turnWheel(.left, by: 30°)
    droid.wait(for: .seconds(2))
    droid.stop()
}

Installation

Swift Package Manager

In Xcode, go to File → Add Packages… and paste in https://github.com/tinkertanker/DroidKit.git as the package URL.

Swift Playgrounds

Unfortunately, the current version of Playgrounds does not support Swift Package Manager, therefore, this will be a little annoying.

Alternatively, you can just download the DroidKit Demo.playgroundbook.

1. Clone this Repository
2. Create a new Playground and open it in Finder
3. Control-Click or Right-Click and Show Package Contents
4. Open up Contents/UserModules
5. Create a folder called DroidKit.playgroundmodule
6. Within DroidKit.playgroundmodule, create a folder named Sources
7. Move the .swift files from this package into the Sources folder individually. Unfortunately you cannot nest folders within a Playground Module.

Important

Adding to a Project

Remember to add the NSBluetoothAlwaysUsageDescription key to the Info.plist.

In English, it's "Privacy - Bluetooth Always Usage Description"

Playgrounds

• Make sure to enable indefinite execution otherwise it will not work.

  PlaygroundPage.current.needsIndefiniteExecution = true

• There seems to be issues connecting with the Droid when running on Swift Playgrounds for macOS. It's best to use Swift Playgrounds on iPad.

General

• Calling Droid() will start searching for a Droid to connect to.