Swifty GPIO

A Swift library for hardware projects on Linux/ARM boards with support for GPIOs/SPI/I2C/PWM/UART/1Wire.

Internet of Things (IoT)SwiftMIT

Abstract

Swifty GPIO is an open-source Internet of Things (IoT) project. A Swift library for hardware projects on Linux/ARM boards with support for GPIOs/SPI/I2C/PWM/UART/1Wire. Like Android Things or similar libraries in Python, SwiftyGPIO provides the basic functionalities you'll need to control different devices: sensors, displays, input devices like joypads, RGB led strips and matrices. It is built using Swift. The complete source code is publicly available on GitHub under the MIT License, making it a useful reference for students building an Internet of Things (IoT) mini project or final-year project.

1. Introduction

Like Android Things or similar libraries in Python, SwiftyGPIO provides the basic functionalities you'll need to control different devices: sensors, displays, input devices like joypads, RGB led strips and matrices.

Examples of device libraries and complete projects built using SwiftyGPIO that you can use as inspiration for your own DIY hardware projects are listed below, have fun!

A Swift library for hardware projects on Linux/ARM boards with support for GPIOs/SPI/I2C/PWM/UART/1Wire.

2. Objective

A Swift library for hardware projects on Linux/ARM boards with support for GPIOs/SPI/I2C/PWM/UART/1Wire.

This project demonstrates how Swift can be applied to a real-world Internet of Things (IoT) problem.

4. Technology Stack

Swift
  • SwiftFlowMeter - A Swift library for using Hall effect based water flow sensors.
  • SwiftyXBee - Library for the XBee module to communicate with Zigbee devices in API mode.
  • SwiftyOLED - Library for OLED displays based on SSD1306 and SSD1305.
  • SHT20 - Library for the I2C SHT20 Humidity and Temperature Sensor.
  • LSM303 - Triple-axis Accelerometer+Magnetometer (Compass) I2C board library.
  • PCA9685 - 16-Channel 12-bit PWM/Servo Driver PCA9685 I2C board library.
  • TM1637 - Library for the TM1637 7-segment driver chip.
  • HC-SR04 Ultrasonic sensors - Library for the HC-SR04 ultrasonic ranging sensor.

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

  • Xcode on macOS
  • Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/uraimo/SwiftyGPIO.git
cd SwiftyGPIO
// swift-tools-version:4.0
import PackageDescription

let package = Package(
    name: "light",
    dependencies: [
         .package(url: "https://github.com/uraimo/SwiftyGPIO.git", from: "1.0.0")
    ]
)

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

  • Add a mobile dashboard using Blynk or Firebase
  • Store readings in a cloud database for history charts
  • Add alerts via SMS / Telegram when thresholds are crossed

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

  1. Which microcontroller / board and sensors are used and why?
  2. How does the device send data (Wi-Fi, MQTT, HTTP, Bluetooth)?
  3. Where is the sensor data stored and visualised?
  4. How is power consumption managed?
  5. How would you secure the device and its communication?

9. Source Code & License

This project is developed by uraimo and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.

View Source on GitHubDownload ZIP

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