■ 적색 LED를 깜박이는 방법을 보여준다.
▶ 부품 내역
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───────────────────── 구분 모델 수량 비고 ───── ───────── ── ── LED BL-B5134(333HD) 1 RESISTANCE CFR 1/4W 5% 330ohm 1 ───────────────────── |
[회로 구성도]
▶ MainPage.xaml
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<Page x:Class="TestApplication.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:TestApplication" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <Ellipse x:Name="ellipse" Width="96" Height="96" Fill="Red" /> <TextBlock x:Name="textBlock" HorizontalAlignment="Center" Text="ON" /> </StackPanel> </Grid> </Page> |
▶ MainPage.xaml.cs
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using System.Threading.Tasks; using Windows.Devices.Gpio; using Windows.UI.Xaml; using Windows.UI.Xaml.Controls; using Windows.UI.Xaml.Media; namespace TestApplication { /// <summary> /// 메인 페이지 /// </summary> public sealed partial class MainPage : Page { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// GPIO 컨트롤러 /// </summary> private GpioController gpioController = null; /// <summary> /// GPIO 핀 /// </summary> private GpioPin gpioPin = null; /// <summary> /// LED 핀 번호 /// </summary> private const int LED_PIN_NUMBER = 5; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); Loaded += Page_Loaded; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 페이지 로드시 처리하기 - Page_Loaded(sender, e) /// <summary> /// 페이지 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Page_Loaded(object sender, RoutedEventArgs e) { InitializeGPIO(); Loop(); } #endregion #region GPIO 초기화 하기 - InitializeGPIO() /// <summary> /// GPIO 초기화 하기 /// </summary> private void InitializeGPIO() { this.gpioController = GpioController.GetDefault(); if(this.gpioController == null) { this.gpioPin = null; return; } this.gpioPin = gpioController.OpenPin(LED_PIN_NUMBER); this.gpioPin.Write(GpioPinValue.High); this.gpioPin.SetDriveMode(GpioPinDriveMode.Output); } #endregion #region 루프 돌기 - Loop() /// <summary> /// 루프 돌기 /// </summary> private async void Loop() { while(true) { this.gpioPin.Write(GpioPinValue.Low); this.ellipse.Fill = new SolidColorBrush(Windows.UI.Colors.DarkGray); this.textBlock.Text = "OFF"; await Task.Delay(1000); this.gpioPin.Write(GpioPinValue.High); this.ellipse.Fill = new SolidColorBrush(Windows.UI.Colors.Red); this.textBlock.Text = "ON"; await Task.Delay(1000); } } #endregion } } |
