Swiftpack.co - Package - nallick/USBSerial


Provides RS232 serial connections for macOS and Linux using USB-Serial adaptors. The input stream and errors are provided via NotificationManager notifications or a Combine publisher (when available). If logging is desired, a swift-log logger can be provided to the SerialSession.

For example:

#if os(macOS)
let serialDeviceInfo = UsbDevice.Information(idVendor: 0x0403, idProduct: 0x6001, bcdDevice: 0x0600)    // FTDI USB-Serial
let serialDeviceInfo = UsbDevice.Information(idVendor: 0x067B, idProduct: 0x2303, bcdDevice: 0x0400)    // Prolific USB-Serial

let drivers = UsbDevice.driversWithInformation(serialDeviceInfo)
guard let driver = drivers.first else { fatalError("No USB-Serial devices found") }

let inputNotification = NSNotification.Name(rawValue: driver.lastPathComponent + "-input")
let closedNotification = NSNotification.Name(rawValue: driver.lastPathComponent + "-closed")

let inputToken = NotificationCenter.default.addObserver(forName: inputNotification, object: nil, queue: .main)  { byte in
    // handle the input byte

let closedToken = NotificationCenter.default.addObserver(forName: closedNotification, object: nil, queue: .main)  { reason in
    // handle the port closing (e.g., the USB device was removed)

let serialSession = SerialSession(driver: driver, inputNotification: inputNotification, closedNotification: closedNotification)


To add USBSerial to your project, declare a dependency in your Package.swift file,

.package(url: "https://github.com/nallick/USBSerial.git", from: "1.0.0"),

and add the dependency to your target:

.target(name: "MyProjectTarget", dependencies: ["USBSerial"]),


Thank you to the creators of the following Swift packages:

swift-log from Apple

SwiftSerial from Yeo Kheng Meng


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