raspberry-swift

Swift 3.1 app on the Raspberry Pi 3

Logging In & Building

This command will search the local network by MAC address and find ones that belong to Raspberry Pi devices.

sudo arp-scan --localnet --interface=en0 | grep b8:27:eb:

To log in, you will likely need to pass along the username, and (in my case) pass along the particular RSA key you have set up on the device.

ssh [email protected] -i ~/.ssh/raspberry_rsa

Then to build and run the app:

cd tank
swift build
sudo ./.build/debug/RaspberrySwift

Installing Swift

cd /
wget https://github.com/shepting/raspberry-swift/blob/master/archives/swift-3.1.1-RPi23-1604.tgz
sudo tar -xvzf swift-3.1.1-RPi23-1604.tgz
sudo apt install clang
sudo apt install libpython3.5-dev
sudo apt install libcurl3

Hardware Used

• Rasberry PI 3 https://www.amazon.com/Raspberry-Model-1-2GHz-64-bit-quad-core/dp/B01CD5VC92
• 32GB Micro-SD Card https://www.amazon.com/SanDisk-microSDHC-Standard-Packaging-SDSQUNC-032G-GN6MA/dp/B010Q57T02
• Relay https://www.amazon.com/Tolako-Arduino-Indicator-Channel-Official/dp/B00VRUAHLE/
• 3.5" Monitor https://www.amazon.com/Raspberry-Display-kuman-480x320-Interface/dp/B01CNJVG8K
• Keyboard + Trackpad https://www.amazon.com/Rii-Stainless-Wireless-Rechargable-Raspberry/dp/B00ESUXXZM
• Raspberry Pi Breadboard & Mount https://www.amazon.com/Transparent-Experiment-Breadboard-Raspberry-Rapsbery/dp/B0155XBBFO

Talking Over I2C

Sample Python configuration and bit shifting: https://github.com/switchdoclabs/SDL_Pi_Grove4Ch16BitADC/blob/58e2a8e32b03d2c463bde59821d210b16a792ad1/Adafruit_ADS1x15/Adafruit_ADS1x15.py#L266-L268

Resources

• Umberto Raimondi (uraimo) "SwiftyGPIO" https://github.com/uraimo/SwiftyGPIO
• Ray Fix "Unsafe Swift" https://www.raywenderlich.com/148569/unsafe-swift
• Marius Rackwitz "Swift HomeKit Accessories" https://speakerdeck.com/marius/diy-smarthome-build-your-own-homekit-accessories
• Nate Cook "Swift's Pointy Bits: Unsafe Swift and Pointer Types" https://academy.realm.io/posts/nate-cook-tryswift-tokyo-unsafe-swift-and-pointer-types/
• UnsafeMutablePointer https://developer.apple.com/documentation/swift/unsafemutablepointer