Swift on the Raspberry PI

Transcript

1. Swift on the Raspberry PI
3. TOC 1. Why 2. Building 3. GPIO 4. Tools
4. Why?
5. Just another language
6. Just another good language
7. Advantages 4 Expressive 4 Fast 4 Memory-efficient 4 C-compatible
8. Downsides 4 Not a real platform (such as Android Things) 4 Not many drivers 4 ARM Linux not officially supported by Apple (yet)
9. Building
10. Requirements 4 Raspberry PI 3 4 Micro-SD Card (8 or 16 GB) 4 Ubuntu Core (+ Ubuntu SSO Account) or Raspbian 4 External Screen (just for first booting) 4 HDMI Cable !
11. 1. Ubuntu Core 1. Create an Ubuntu SSO Account 2. Read https://developer.ubuntu.com/core/get- started/raspberry-pi-2-3 3. Install on the micro-SD card 4. ssh <USERNAME>@<RASPBERRY-IP>
12. 2. The "Classic" mode 1. sudo snap install classic --edge --devmode 2. sudo classic
13. 3. Building Swift 6 Hours From sources
14. 3. (not) Building Swift (The I've-just-got-30-minutes way) $ http://swift-arm.ddns.net/job/Swift-3.0-Pi3-ARM-Incremental/ lastSuccessfulBuild/artifact/ swift-3.0-2016-12-21-RPi23-ubuntu16.04.tar.gz or $ wget https://www.dropbox.com/s/cah35gf5ap22d11/swift-3.0.2-RPi23-1604.tgz Courtesy of @uraimo
15. 4. Dependencies $ sudo apt-get install -y libpython2.7 libxml2 libicu-dev clang-3.6 libcurl3 $ sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-3.6 100 $ sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-3.6 100
16. 5. All set! $ swift --version > Swift version 3.0.1-dev (LLVM a922364e5b, Clang 968470f170, Swift 0cca6668a2)
17. Resources 4 http://viteinfinite.com/2017/02/swift-on-the- raspberry-pi-part-1/ 4 http://dev.iachieved.it/iachievedit/building- swift-3-0-on-an-armv7-system/ 4 https://www.uraimo.com/2016/12/30/Swift-3-0-2- for-raspberrypi-zero-1-2-3/
18. GPIO
19. 4 https://github.com/uraimo/SwiftyGPIO
20. let package = Package( name: "MyProject", dependencies: [ .Package(url: "https://github.com/uraimo/SwiftyGPIO.git", majorVersion: 0), ] )
22. A basic example import SwiftyGPIO func run() { let gpios = SwiftyGPIO.GPIOs(for:.RaspberryPi2) guard let gpio2 = gpios[.P2], let gpio3 = gpios[.P3] else { return } gpio2.direction = .IN gpio3.direction = .OUT gpio2.onChange{ gpio in gpio3.value = gpio.value } _ = readLine() } run()
25. Tools
27. SourceKitten
28. SwiftKitten + rsub
29. SwiftKitten + rsub ssh -R 52698:localhost:52698 <user@remoteHost> $ rsub file.swift
30. Resources 4 https://github.com/johncsnyder/SwiftKitten 4 https://github.com/Drarok/rsub
31. That's (almost) all!