Update structure to fit Swift 5.9 (#18)

* Update structure to fit Swift 5.9

Signed-off-by: Andy Liu <andy@madmachine.io>

* Add import dependency

Signed-off-by: Andy Liu <andy@madmachine.io>

---------

Signed-off-by: Andy Liu <andy@madmachine.io>

Examples/SwiftIOPlayground/01LED/LEDBlink/.gitignore

@@ -1,9 +1,8 @@
 .DS_Store
 /.build
 /Packages
-/*.xcodeproj
 xcuserdata/
 DerivedData/
-.swiftpm/config/registries.json
+.swiftpm/configuration/registries.json
 .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
 .netrc

Examples/SwiftIOPlayground/01LED/LEDBlink/Package.swift

@@ -1,6 +1,8 @@
-// swift-tools-version:5.7
+// swift-tools-version: 5.9
 // The swift-tools-version declares the minimum version of Swift required to build this package.
+
 import PackageDescription
+
 let package = Package(
     name: "LEDBlink",
     dependencies: [
@@ -9,16 +11,14 @@ let package = Package(
         .package(url: "https://github.com/madmachineio/MadBoards.git", branch: "main"),
     ],
     targets: [
-        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
-        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        // Targets are the basic building blocks of a package, defining a module or a test suite.
+        // Targets can depend on other targets in this package and products from dependencies.
         .executableTarget(
             name: "LEDBlink",
             dependencies: [
                 "SwiftIO",
-                "MadBoards"
+                "MadBoards",
             ]),
-        .testTarget(
-            name: "LEDBlinkTests",
-            dependencies: ["LEDBlink"]),
     ]
 )
+

Examples/SwiftIOPlayground/01LED/LEDBlink/Sources/main.swift

@@ -0,0 +1,18 @@
+// First import the SwiftIO and MadBoard libraries into the project to use related functionalities.
+import SwiftIO
+import MadBoard
+
+// Initialize the specified pin used for digital output.
+let led = DigitalOut(Id.D18)
+
+// The code in the loop will run over and over again. 
+while true {
+    //Output high voltage to turn on the LED.   
+    led.write(true)
+    // Keep the LED on for 1 second.
+    sleep(ms: 1000)
+
+    // Turn off the LED and then keep that state for 1s.
+    led.write(false)
+    sleep(ms: 1000)
+}

Examples/SwiftIOPlayground/01LED/LEDBlinkWithTimer/.gitignore

@@ -1,9 +1,8 @@
 .DS_Store
 /.build
 /Packages
-/*.xcodeproj
 xcuserdata/
 DerivedData/
-.swiftpm/config/registries.json
+.swiftpm/configuration/registries.json
 .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
 .netrc

Examples/SwiftIOPlayground/01LED/LEDBlinkWithTimer/Package.swift

@@ -1,6 +1,8 @@
-// swift-tools-version:5.7
+// swift-tools-version: 5.9
 // The swift-tools-version declares the minimum version of Swift required to build this package.
+
 import PackageDescription
+
 let package = Package(
     name: "LEDBlinkWithTimer",
     dependencies: [
@@ -9,16 +11,13 @@ let package = Package(
         .package(url: "https://github.com/madmachineio/MadBoards.git", branch: "main"),
     ],
     targets: [
-        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
-        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        // Targets are the basic building blocks of a package, defining a module or a test suite.
+        // Targets can depend on other targets in this package and products from dependencies.
         .executableTarget(
             name: "LEDBlinkWithTimer",
             dependencies: [
                 "SwiftIO",
-                "MadBoards"
+                "MadBoards",
             ]),
-        .testTarget(
-            name: "LEDBlinkWithTimerTests",
-            dependencies: ["LEDBlinkWithTimer"]),
     ]
 )

Examples/SwiftIOPlayground/01LED/LEDBlinkWithTimer/Sources/main.swift

@@ -0,0 +1,29 @@
+// Import the SwiftIO library to control input and output and the MadBoard to use the id of the pins.
+import SwiftIO
+import MadBoard
+
+// Initialize a digital pin for LED module.
+let redLed = DigitalOut(Id.D18)
+
+// Initialize the onboard blue LED.
+let blueLed = DigitalOut(Id.BLUE)
+
+// Initialize a timer for 1500ms.
+let timer = Timer(period: 1500)
+
+// Define a new function used to toggle the LED.
+func ToggleLEDSwitch() {
+    redLed.toggle()
+}
+
+// Set an interrupt to reverse the LED state every time the interrupt occurs.
+timer.setInterrupt(ToggleLEDSwitch)
+
+// Blink onboard blue LED.
+while true {
+    blueLed.high()
+    sleep(ms: 500)
+
+    blueLed.low()
+    sleep(ms: 500)
+}

Examples/SwiftIOPlayground/01LED/LEDMorseCode/.gitignore

@@ -1,9 +1,8 @@
 .DS_Store
 /.build
 /Packages
-/*.xcodeproj
 xcuserdata/
 DerivedData/
-.swiftpm/config/registries.json
+.swiftpm/configuration/registries.json
 .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
 .netrc

Examples/SwiftIOPlayground/01LED/LEDMorseCode/Package.swift

@@ -1,6 +1,8 @@
-// swift-tools-version:5.7
+// swift-tools-version: 5.9
 // The swift-tools-version declares the minimum version of Swift required to build this package.
+
 import PackageDescription
+
 let package = Package(
     name: "LEDMorseCode",
     dependencies: [
@@ -9,16 +11,13 @@ let package = Package(
         .package(url: "https://github.com/madmachineio/MadBoards.git", branch: "main"),
     ],
     targets: [
-        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
-        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        // Targets are the basic building blocks of a package, defining a module or a test suite.
+        // Targets can depend on other targets in this package and products from dependencies.
         .executableTarget(
             name: "LEDMorseCode",
             dependencies: [
                 "SwiftIO",
-                "MadBoards"
+                "MadBoards",
             ]),
-        .testTarget(
-            name: "LEDMorseCodeTests",
-            dependencies: ["LEDMorseCode"]),
     ]
 )

Examples/SwiftIOPlayground/01LED/LEDMorseCode/Sources/main.swift

@@ -0,0 +1,41 @@
+// Import the libraries to use all their functionalities.
+import SwiftIO
+import MadBoard
+
+// Initialize the digital output pin.
+let led = DigitalOut(Id.D18)
+
+// Define the LED states to represent the letter s and o.
+let sSignal = [false, false, false]
+let oSignal = [true, true ,true]
+
+// Set the LED blink rate according to the values in the array.
+func send(_ values: [Bool], to light: DigitalOut) {
+    // The duration of slow flash and quick flash.
+    let long = 1000
+    let short = 500
+
+    // Iterate all the values in the array. 
+    // If the value is true, the LED will be on for 1s, which is a slow flash.
+    // And if it’s false, the LED will be on for 0.5s, which is a quick flash.
+    for value in values {
+        light.high()
+        if value {
+            sleep(ms: long)
+        } else {
+            sleep(ms: short)
+        }
+        light.low()
+        sleep(ms: short)
+    }
+}
+
+// Blink the LED.
+// At first, the LED starts 3 fast blink to represent s, then 3 slow blink to represent o, and 3 fast blink again.
+// Wait 1s before repeating again.
+while true {
+    send(sSignal, to: led)
+    send(oSignal, to: led)
+    send(sSignal, to: led)
+    sleep(ms: 1000)
+}

Examples/SwiftIOPlayground/01LED/RGBLED/.gitignore

@@ -1,9 +1,8 @@
 .DS_Store
 /.build
 /Packages
-/*.xcodeproj
 xcuserdata/
 DerivedData/
-.swiftpm/config/registries.json
+.swiftpm/configuration/registries.json
 .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
 .netrc