SENSOR Archives - icodebroker

[C#/UWP/RASPBERRYPI] DHT11 온도/습도 센서 사용하기

■ DHT11 온도/습도 센서를 사용하는 방법을 보여준다. ▶ 부품 내역


───────────────────
구분                모델    수량  비고
─────────  ───  ──  ──
SENSOR/TEMPERATURE  DHT11   1
───────────────────

───────────────────

구분 모델 수량 비고

───────── ─── ── ──

SENSOR/TEMPERATURE DHT11 1

───────────────────

[회로 구성도] ▶ MainPage.xaml


<Page x:Class="TestProject.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    RequestedTheme="Dark">
    <Page.Resources>
        <Thickness x:Key="DashboardBorderMarginKey">3 3 3 3</Thickness>
        <Thickness x:Key="DashboardBorderThicknessKey">2</Thickness>
        <SolidColorBrush x:Key="DashboardBorderBrushKey">#ff0063b1</SolidColorBrush>
        <x:Double x:Key="DashboardFontSizeKey">25</x:Double>
        <SolidColorBrush x:Key="DashboardHeaderTextBrushKey">#ff0063b1</SolidColorBrush>
        <SolidColorBrush x:Key="DashboardTextBrushKey">White</SolidColorBrush>
        <SolidColorBrush x:Key="DisplayHeaderTextBrushKey">Yellow</SolidColorBrush>
        <SolidColorBrush x:Key="DisplayTextBrushKey">White</SolidColorBrush>
    </Page.Resources>
    <Grid Background="Black">
        <Grid.RowDefinitions>
            <RowDefinition Height="1*" />
            <RowDefinition Height="3*" />
        </Grid.RowDefinitions>
        <Grid Grid.Row="0">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="*" />
                <RowDefinition Height="*" />
            </Grid.RowDefinitions>
            <Border Grid.Column="0" Grid.Row="0"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardHeaderTextBrushKey}"
                    TextWrapping="WrapWholeWords"
                    Text="시도 건수" />
            </Border>
            <Border Grid.Column="0" Grid.Row="1"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock x:Name="attemptCountTextBlock"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardTextBrushKey}"
                    TextWrapping="WrapWholeWords" />
            </Border>

            <Border Grid.Column="1" Grid.Row="0"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardHeaderTextBrushKey}"
                    TextWrapping="WrapWholeWords"
                    Text="평균 재시도 건수" />
            </Border>
            <Border Grid.Column="1" Grid.Row="1"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}" >
                <TextBlock x:Name="averageRetryCountTextBlock"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardTextBrushKey}"
                    TextWrapping="WrapWholeWords" />
            </Border>

            <Border Grid.Column="2" Grid.Row="0"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardHeaderTextBrushKey}"
                    TextWrapping="WrapWholeWords"
                    Text="성공 건수" />
            </Border>
            <Border Grid.Column="2" Grid.Row="1"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock x:Name="successCountTextBlock"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardTextBrushKey}"
                    TextWrapping="WrapWholeWords" />
            </Border>

            <Border Grid.Column="3" Grid.Row="0"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardHeaderTextBrushKey}"
                    TextWrapping="WrapWholeWords"
                    Text="성공율" />
            </Border>
            <Border Grid.Column="3" Grid.Row="1"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock x:Name="successRateTextBlock"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardTextBrushKey}"
                    TextWrapping="WrapWholeWords" />
            </Border>

            <Border Grid.Column="4" Grid.Row="0"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardHeaderTextBrushKey}"
                    TextWrapping="WrapWholeWords"
                    Text="비율" />
            </Border>
            <Border Grid.Column="4" Grid.Row="1"
                Margin="{StaticResource DashboardBorderMarginKey}"
                BorderThickness="{StaticResource DashboardBorderThicknessKey}"
                BorderBrush="{StaticResource DashboardBorderBrushKey}">
                <TextBlock x:Name="rateTextBlock"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    FontSize="{StaticResource DashboardFontSizeKey}"
                    Foreground="{StaticResource DashboardTextBrushKey}"
                    TextWrapping="WrapWholeWords" />
            </Border>
        </Grid>
        <Grid Grid.Row="1">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="*" />
                <RowDefinition Height="*" />
                <RowDefinition Height="*" />
            </Grid.RowDefinitions>
            <TextBlock Grid.Column="0" Grid.Row="0"
                HorizontalAlignment="Center"
                VerticalAlignment="Bottom"
                FontSize="50"
                Foreground="{StaticResource DisplayHeaderTextBrushKey}"
                Text="습도" />
            <TextBlock x:Name="humidityTextBlock" Grid.Column="0" Grid.Row="1"
                HorizontalAlignment="Center"
                VerticalAlignment="Top"
                Margin="10 10 10 10"
                FontSize="90"
                Foreground="{StaticResource DisplayTextBrushKey}" />

            <TextBlock Grid.Column="1" Grid.Row="0"
                HorizontalAlignment="Center"
                VerticalAlignment="Bottom"
                FontSize="50"
                Foreground="{StaticResource DisplayHeaderTextBrushKey}"
                Text="온도" />
            <TextBlock x:Name="temperatureTextBlock" Grid.Column="1" Grid.Row="1"
                Margin="10 10 10 10"
                HorizontalAlignment="Center"
                VerticalAlignment="Top"
                FontSize="90"
                Foreground="{StaticResource DisplayTextBrushKey}" />

            <TextBlock Grid.Column="0" Grid.Row="2"
                HorizontalAlignment="Right"
                VerticalAlignment="Center"
                Margin="0 0 20 0"
                FontSize="35"
                Foreground="{StaticResource DisplayHeaderTextBrushKey}"
                Text="최근 갱신 일시 :" />
            <TextBlock x:Name="lastUpdatedOffsetTextBlock" Grid.Column="1" Grid.Row="2"
                HorizontalAlignment="Left"
                VerticalAlignment="Center"
                Margin="20 0 0 0"
                FontSize="35"
                Foreground="{StaticResource DisplayTextBrushKey}" />
        </Grid>
    </Grid>
</Page>

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<Page x:Class="TestProject.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

mc:Ignorable="d"

RequestedTheme="Dark">

<Page.Resources>

<x:Double x:Key="DashboardFontSizeKey">25</x:Double>

<SolidColorBrush x:Key="DashboardTextBrushKey">White</SolidColorBrush>

<SolidColorBrush x:Key="DisplayHeaderTextBrushKey">Yellow</SolidColorBrush>

<SolidColorBrush x:Key="DisplayTextBrushKey">White</SolidColorBrush>

</Page.Resources>

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

</Grid.ColumnDefinitions>

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<Border Grid.Column="0" Grid.Row="0"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardHeaderTextBrushKey}"

TextWrapping="WrapWholeWords"

Text="시도 건수" />

</Border>

<Border Grid.Column="0" Grid.Row="1"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock x:Name="attemptCountTextBlock"

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardTextBrushKey}"

TextWrapping="WrapWholeWords" />

</Border>

<Border Grid.Column="1" Grid.Row="0"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardHeaderTextBrushKey}"

TextWrapping="WrapWholeWords"

Text="평균 재시도 건수" />

</Border>

<Border Grid.Column="1" Grid.Row="1"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}" >

<TextBlock x:Name="averageRetryCountTextBlock"

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardTextBrushKey}"

TextWrapping="WrapWholeWords" />

</Border>

<Border Grid.Column="2" Grid.Row="0"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardHeaderTextBrushKey}"

TextWrapping="WrapWholeWords"

Text="성공 건수" />

</Border>

<Border Grid.Column="2" Grid.Row="1"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock x:Name="successCountTextBlock"

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardTextBrushKey}"

TextWrapping="WrapWholeWords" />

</Border>

<Border Grid.Column="3" Grid.Row="0"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardHeaderTextBrushKey}"

TextWrapping="WrapWholeWords"

Text="성공율" />

</Border>

<Border Grid.Column="3" Grid.Row="1"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock x:Name="successRateTextBlock"

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardTextBrushKey}"

TextWrapping="WrapWholeWords" />

</Border>

<Border Grid.Column="4" Grid.Row="0"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardHeaderTextBrushKey}"

TextWrapping="WrapWholeWords"

Text="비율" />

</Border>

<Border Grid.Column="4" Grid.Row="1"

Margin="{StaticResource DashboardBorderMarginKey}"

BorderThickness="{StaticResource DashboardBorderThicknessKey}"

BorderBrush="{StaticResource DashboardBorderBrushKey}">

<TextBlock x:Name="rateTextBlock"

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="{StaticResource DashboardFontSizeKey}"

Foreground="{StaticResource DashboardTextBrushKey}"

TextWrapping="WrapWholeWords" />

</Border>

</Grid>

<Grid.ColumnDefinitions>

</Grid.ColumnDefinitions>

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<TextBlock Grid.Column="0" Grid.Row="0"

HorizontalAlignment="Center"

VerticalAlignment="Bottom"

FontSize="50"

Foreground="{StaticResource DisplayHeaderTextBrushKey}"

Text="습도" />

<TextBlock x:Name="humidityTextBlock" Grid.Column="0" Grid.Row="1"

HorizontalAlignment="Center"

VerticalAlignment="Top"

Margin="10 10 10 10"

FontSize="90"

Foreground="{StaticResource DisplayTextBrushKey}" />

<TextBlock Grid.Column="1" Grid.Row="0"

HorizontalAlignment="Center"

VerticalAlignment="Bottom"

FontSize="50"

Foreground="{StaticResource DisplayHeaderTextBrushKey}"

Text="온도" />

<TextBlock x:Name="temperatureTextBlock" Grid.Column="1" Grid.Row="1"

Margin="10 10 10 10"

HorizontalAlignment="Center"

VerticalAlignment="Top"

FontSize="90"

Foreground="{StaticResource DisplayTextBrushKey}" />

<TextBlock Grid.Column="0" Grid.Row="2"

HorizontalAlignment="Right"

VerticalAlignment="Center"

Margin="0 0 20 0"

FontSize="35"

Foreground="{StaticResource DisplayHeaderTextBrushKey}"

Text="최근 갱신 일시 :" />

<TextBlock x:Name="lastUpdatedOffsetTextBlock" Grid.Column="1" Grid.Row="2"

HorizontalAlignment="Left"

VerticalAlignment="Center"

Margin="20 0 0 0"

FontSize="35"

Foreground="{StaticResource DisplayTextBrushKey}" />

</Grid>

</Page>

▶ MainPage.xaml.cs


using System;
using System.Collections.Generic;
using System.Linq;
using Windows.Devices.Gpio;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;

using Sensors.DHT;

namespace TestProject
{
    /// <summary>
    /// 메인 페이지
    /// </summary>
    public sealed partial class MainPage : Page
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Field

        #region Field

        /// <summary>
        /// 디스패처 타이머
        /// </summary>
        private DispatcherTimer dispatcherTimer = null;

        /// <summary>
        /// DHT 인터페이스
        /// </summary>
        private IDHT dht = null;

        /// <summary>
        /// GPIO 핀
        /// </summary>
        private GpioPin gpioPin = null;

        /// <summary>
        /// 현재 일시 오프셋
        /// </summary>
        private DateTimeOffset currentDateTimeOffset = DateTimeOffset.MinValue;


        /// <summary>
        /// 시도 건수
        /// </summary>
        private int attemptCount = 0;

        /// <summary>
        /// 재시도 카운트 리스트
        /// </summary>
        private List<int> retryCountList = new List<int>();

        /// <summary>
        /// 성공 건수
        /// </summary>
        private int successCount = 0;

        /// <summary>
        /// 습도
        /// </summary>
        private float humidity = 0f;

        /// <summary>
        /// 온도
        /// </summary>
        private float temperature = 0f;

        /// <summary>
        /// 최근 갱신 오프셋
        /// </summary>
        private DateTimeOffset lastUpdatedOffset = DateTimeOffset.MinValue;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainPage()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainPage()
        {
            InitializeComponent();


            this.dispatcherTimer = new DispatcherTimer();

            this.dispatcherTimer.Interval = TimeSpan.FromSeconds(1);

            this.dispatcherTimer.Tick += dispatcherTimer_Tick;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Protected

        #region 네비게이션 올 때 처리하기 - OnNavigatedTo(e)

        /// <summary>
        /// 네비게이션 올 때 처리하기
        /// </summary>
        /// <param name="e">이벤트 인자</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);

            GpioController gpioController = GpioController.GetDefault();

            if(gpioController != null)
            {
                this.gpioPin = gpioController.OpenPin(17, GpioSharingMode.Exclusive);

                this.dht = new DHT11(this.gpioPin, GpioPinDriveMode.Input);

                this.dispatcherTimer.Start();

                this.currentDateTimeOffset = DateTimeOffset.Now;
            }
        }

        #endregion
        #region 네비게이션 갈 때 처리하기 - OnNavigatedFrom(e)

        /// <summary>
        /// 네비게이션 갈 때 처리하기
        /// </summary>
        /// <param name="e">이벤트 인자</param>
        protected override void OnNavigatedFrom(NavigationEventArgs e)
        {
            this.dispatcherTimer.Stop();

            if(this.gpioPin != null)
            {
                this.gpioPin.Dispose();

                this.gpioPin = null;
            }

            this.dht = null;

            base.OnNavigatedFrom(e);
        }

        #endregion

        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 디스패처 타이머 틱 처리하기 - dispatcherTimer_Tick(sender, e)

        /// <summary>
        /// 디스패처 타이머 틱 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private async void dispatcherTimer_Tick(object sender, object e)
        {
            try
            {
                this.dispatcherTimer.Stop();

                DHTReading dhtReading = await this.dht.GetReadingAsync().AsTask();

                #region 시도 건수를 표시한다.

                this.attemptCount++;

                this.attemptCountTextBlock.Text = string.Format("{0:0}", this.attemptCount);

                #endregion
                #region 평균 재시도 건수를 표시한다.

                this.retryCountList.Add(dhtReading.RetryCount);

                int averageRetryCount = 0;

                if(this.retryCountList.Count() > 0)
                {
                    averageRetryCount = (int)this.retryCountList.Average();
                }

                this.averageRetryCountTextBlock.Text = string.Format("{0:0}", averageRetryCount);

                #endregion
                #region 성공 건수를 표시한다.

                if(dhtReading.IsValid)
                {
                    this.successCount++;
                }

                this.successCountTextBlock.Text = string.Format("{0:0}", this.successCount);

                #endregion
                #region 성공율을 표시한다.

                this.successRateTextBlock.Text = attemptCount > 0 ? string.Format("{0:0.0}%", 100f * (float)this.successCount / (float)attemptCount) : "0.0%";

                #endregion
                #region 비율을 표시한다.

                double totalSecondCount = DateTimeOffset.Now.Subtract(this.currentDateTimeOffset).TotalSeconds;

                double rate = this.successCount / totalSecondCount;

                this.rateTextBlock.Text = rate < 1 ? string.Format("{0:0.00} 초/읽기", 1d / rate) : string.Format("{0:0.00} 읽기/초", rate);

                #endregion

                if(dhtReading.IsValid)
                {
                    #region 습도를 표시한다.

                    this.humidity = Convert.ToSingle(dhtReading.Humidity);

                    this.humidityTextBlock.Text = string.Format("{0:0.0}% RH", this.humidity);

                    #endregion
                    #region 온도를 표시한다.

                    this.temperature = Convert.ToSingle(dhtReading.Temperature);

                    this.temperatureTextBlock.Text = string.Format("{0:0.0} ℃", this.temperature);

                    #endregion
                    #region 최근 갱신 일시를 표시한다.

                    this.lastUpdatedOffset = DateTimeOffset.Now;

                    this.lastUpdatedOffsetTextBlock.Text = GetLastUpdatedOffsetString();

                    #endregion
                }
            }
            finally
            {
                this.dispatcherTimer.Start();
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 최근 갱신 오프셋 문자열 구하기 - GetLastUpdatedOffsetString()

        /// <summary>
        /// 최근 갱신 오프셋 문자열 구하기
        /// </summary>
        private string GetLastUpdatedOffsetString()
        {
            string returnValue = string.Empty;

            TimeSpan elapsed = DateTimeOffset.Now.Subtract(this.lastUpdatedOffset);

            if(this.lastUpdatedOffset == DateTimeOffset.MinValue)
            {
                returnValue = "미갱신";
            }
            else if(elapsed.TotalSeconds < 60d)
            {
                int totalSecondCount = (int)elapsed.TotalSeconds;

                if(totalSecondCount < 2)
                {
                    returnValue = "방금 갱신";
                }
                else
                {
                    returnValue = string.Format("{0:0} {1} 전", totalSecondCount, totalSecondCount == 1 ? "초" : "초");
                }
            }
            else if(elapsed.TotalMinutes < 60d)
            {
                int totalMinuteCount = (int)elapsed.TotalMinutes == 0 ? 1 : (int)elapsed.TotalMinutes;

                returnValue = string.Format("{0:0} {1} 전", totalMinuteCount, totalMinuteCount == 1 ? "분" : "분");
            }
            else if(elapsed.TotalHours < 24d)
            {
                int totalHourCount = (int)elapsed.TotalHours == 0 ? 1 : (int)elapsed.TotalHours;

                returnValue = string.Format("{0:0} {1} 전", totalHourCount, totalHourCount == 1 ? "시간" : "시간");
            }
            else
            {
                returnValue = "오래 전";
            }

            return returnValue;
        }

        #endregion
    }
}

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using System;

using System.Collections.Generic;

using System.Linq;

using Windows.Devices.Gpio;

using Windows.UI.Xaml;

using Windows.UI.Xaml.Controls;

using Windows.UI.Xaml.Navigation;

using Sensors.DHT;

namespace TestProject

{

/// <summary>

/// 메인 페이지

/// </summary>

public sealed partial class MainPage : Page

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Field

////////////////////////////////////////////////////////////////////////////////////////// Field

#region Field

/// <summary>

/// 디스패처 타이머

/// </summary>

private DispatcherTimer dispatcherTimer = null;

/// <summary>

/// DHT 인터페이스

/// </summary>

private IDHT dht = null;

/// <summary>

/// GPIO 핀

/// </summary>

private GpioPin gpioPin = null;

/// <summary>

/// 현재 일시 오프셋

/// </summary>

private DateTimeOffset currentDateTimeOffset = DateTimeOffset.MinValue;

/// <summary>

/// 시도 건수

/// </summary>

private int attemptCount = 0;

/// <summary>

/// 재시도 카운트 리스트

/// </summary>

private List<int> retryCountList = new List<int>();

/// <summary>

/// 성공 건수

/// </summary>

private int successCount = 0;

/// <summary>

/// 습도

/// </summary>

private float humidity = 0f;

/// <summary>

/// 온도

/// </summary>

private float temperature = 0f;

/// <summary>

/// 최근 갱신 오프셋

/// </summary>

private DateTimeOffset lastUpdatedOffset = DateTimeOffset.MinValue;

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainPage()

/// <summary>

/// 생성자

/// </summary>

public MainPage()

{

InitializeComponent();

this.dispatcherTimer = new DispatcherTimer();

this.dispatcherTimer.Interval = TimeSpan.FromSeconds(1);

this.dispatcherTimer.Tick += dispatcherTimer_Tick;

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Protected

#region 네비게이션 올 때 처리하기 - OnNavigatedTo(e)

/// <summary>

/// 네비게이션 올 때 처리하기

/// </summary>

/// <param name="e">이벤트 인자</param>

protected override void OnNavigatedTo(NavigationEventArgs e)

{

base.OnNavigatedTo(e);

GpioController gpioController = GpioController.GetDefault();

if(gpioController != null)

{

this.gpioPin = gpioController.OpenPin(17, GpioSharingMode.Exclusive);

this.dht = new DHT11(this.gpioPin, GpioPinDriveMode.Input);

this.dispatcherTimer.Start();

this.currentDateTimeOffset = DateTimeOffset.Now;

}

#endregion

#region 네비게이션 갈 때 처리하기 - OnNavigatedFrom(e)

/// <summary>

/// 네비게이션 갈 때 처리하기

/// </summary>

/// <param name="e">이벤트 인자</param>

protected override void OnNavigatedFrom(NavigationEventArgs e)

{

this.dispatcherTimer.Stop();

if(this.gpioPin != null)

{

this.gpioPin.Dispose();

this.gpioPin = null;

}

this.dht = null;

base.OnNavigatedFrom(e);

}

#endregion

////////////////////////////////////////////////////////////////////////////////////////// Private

//////////////////////////////////////////////////////////////////////////////// Event

#region 디스패처 타이머 틱 처리하기 - dispatcherTimer_Tick(sender, e)

/// <summary>

/// 디스패처 타이머 틱 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private async void dispatcherTimer_Tick(object sender, object e)

{

try

{

this.dispatcherTimer.Stop();

DHTReading dhtReading = await this.dht.GetReadingAsync().AsTask();

#region 시도 건수를 표시한다.

this.attemptCount++;

this.attemptCountTextBlock.Text = string.Format("{0:0}", this.attemptCount);

#endregion

#region 평균 재시도 건수를 표시한다.

this.retryCountList.Add(dhtReading.RetryCount);

int averageRetryCount = 0;

if(this.retryCountList.Count() > 0)

{

averageRetryCount = (int)this.retryCountList.Average();

}

this.averageRetryCountTextBlock.Text = string.Format("{0:0}", averageRetryCount);

#endregion

#region 성공 건수를 표시한다.

if(dhtReading.IsValid)

{

this.successCount++;

}

this.successCountTextBlock.Text = string.Format("{0:0}", this.successCount);

#endregion

#region 성공율을 표시한다.

this.successRateTextBlock.Text = attemptCount > 0 ? string.Format("{0:0.0}%", 100f * (float)this.successCount / (float)attemptCount) : "0.0%";

#endregion

#region 비율을 표시한다.

double totalSecondCount = DateTimeOffset.Now.Subtract(this.currentDateTimeOffset).TotalSeconds;

double rate = this.successCount / totalSecondCount;

this.rateTextBlock.Text = rate < 1 ? string.Format("{0:0.00} 초/읽기", 1d / rate) : string.Format("{0:0.00} 읽기/초", rate);

#endregion

if(dhtReading.IsValid)

{

#region 습도를 표시한다.

this.humidity = Convert.ToSingle(dhtReading.Humidity);

this.humidityTextBlock.Text = string.Format("{0:0.0}% RH", this.humidity);

#endregion

#region 온도를 표시한다.

this.temperature = Convert.ToSingle(dhtReading.Temperature);

this.temperatureTextBlock.Text = string.Format("{0:0.0} ℃", this.temperature);

#endregion

#region 최근 갱신 일시를 표시한다.

this.lastUpdatedOffset = DateTimeOffset.Now;

this.lastUpdatedOffsetTextBlock.Text = GetLastUpdatedOffsetString();

#endregion

}

finally

{

this.dispatcherTimer.Start();

}

#endregion

//////////////////////////////////////////////////////////////////////////////// Function

#region 최근 갱신 오프셋 문자열 구하기 - GetLastUpdatedOffsetString()

/// <summary>

/// 최근 갱신 오프셋 문자열 구하기

/// </summary>

private string GetLastUpdatedOffsetString()

{

string returnValue = string.Empty;

TimeSpan elapsed = DateTimeOffset.Now.Subtract(this.lastUpdatedOffset);

if(this.lastUpdatedOffset == DateTimeOffset.MinValue)

{

returnValue = "미갱신";

}

else if(elapsed.TotalSeconds < 60d)

{

int totalSecondCount = (int)elapsed.TotalSeconds;

if(totalSecondCount < 2)

{

returnValue = "방금 갱신";

}

else

{

returnValue = string.Format("{0:0} {1} 전", totalSecondCount, totalSecondCount == 1 ? "초" : "초");

}

else if(elapsed.TotalMinutes < 60d)

{

int totalMinuteCount = (int)elapsed.TotalMinutes == 0 ? 1 : (int)elapsed.TotalMinutes;

returnValue = string.Format("{0:0} {1} 전", totalMinuteCount, totalMinuteCount == 1 ? "분" : "분");

}

else if(elapsed.TotalHours < 24d)

{

int totalHourCount = (int)elapsed.TotalHours == 0 ? 1 : (int)elapsed.TotalHours;

returnValue = string.Format("{0:0} {1} 전", totalHourCount, totalHourCount == 1 ? "시간" : "시간");

}

else

{

returnValue = "오래 전";

}

return returnValue;

}

#endregion

}

TestApplication.zip

[C#/UWP/RASPBERRYPI] ADT7410 디지털 온도 센서 사용하기

■ ADT7410 디지털 온도 센서를 사용하는 방법을 보여준다. ▶ 부품 내역


────────────────────
구분                모델      수량  비고
─────────  ────  ──  ──
SENSOR/TEMPERATURE  ADT7410   1
────────────────────

────────────────────

구분 모델 수량 비고

───────── ──── ── ──

SENSOR/TEMPERATURE ADT7410 1

────────────────────

[회로 구성도] ▶ MainPage.xaml


<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}">
        <TextBlock x:Name="textBlock"
            HorizontalAlignment="Center"
            VerticalAlignment="Center"
            FontSize="48"
            TextWrapping="Wrap"
            Text="TextBlock" />
    </Grid>
</Page>

<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">

<TextBlock x:Name="textBlock"

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="48"

TextWrapping="Wrap"

Text="TextBlock" />

</Grid>

</Page>

▶ MainPage.xaml.cs


using System;
using System.Diagnostics;
using System.Threading;
using Windows.Devices.Enumeration;
using Windows.Devices.I2c;
using Windows.Foundation;
using Windows.UI.Xaml.Controls;

namespace TestApplication
{
    /// <summary>
    /// 메인 페이지
    /// </summary>
    public sealed partial class MainPage : Page
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// I2C 장치
        /// </summary>
        private I2cDevice i2cDevice;

        /// <summary>
        /// 타이머
        /// </summary>
        private Timer timer;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainPage()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainPage()
        {
            InitializeComponent();

            InitializeADT7410();

            Unloaded += Page_Unloaded;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 페이지 언로드시 처리하기 - Page_Unloaded(sender, e)

        /// <summary>
        /// 페이지 언로드시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Page_Unloaded(object sender, object e)
        {
            if(this.i2cDevice != null)
            {
                this.i2cDevice.Dispose();
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 온도 계산하기 - CalculateTemperature(highValue, lowValue)

        /// <summary>
        /// 온도 계산하기
        /// </summary>
        /// <param name="highValue">상위 값</param>
        /// <param name="lowValue">하위 값</param>
        /// <returns>온도</returns>
        private static double CalculateTemperature(int highValue, int lowValue)
        {
            int value = (highValue << 5) + (lowValue >> 3);

            if(value > 4096) // 온도가 영하인 경우
            {
                value = -1 * (8192 - value);
            }

            double temperature = value * 0.0625;

            return temperature;
        }

        #endregion
        #region 타이머 콜백 처리하기 - TimerCallback(state)

        /// <summary>
        /// 타이머 콜백 처리하기
        /// </summary>
        /// <param name="state">상태</param>
        private void TimerCallback(object state)
        {
            string temperatureString;

            byte[] byteArray = new byte[2];

            try
            {
                this.i2cDevice.Read(byteArray);
            }
            catch(Exception exception)
            {
                Debug.WriteLine("예외 : " + exception.Message);
            }

            int highValue = ((int)byteArray[0]);
            int lowValue  = ((int)byteArray[1]);

            double temperature = CalculateTemperature(highValue, lowValue);

            Debug.WriteLine(temperature);

            temperatureString = String.Format("온도 : {0:F4} ℃", temperature);

            IAsyncAction task = this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
            {
                this.textBlock.Text = temperatureString;
            });
        }

        #endregion
        #region ADT7410 초기화하기 - InitializeADT7410()

        /// <summary>
        /// ADT7410 초기화하기
        /// </summary>
        private async void InitializeADT7410()
        {
            try
            {
                string advancedQuerySyntax = I2cDevice.GetDeviceSelector();

                DeviceInformationCollection deviceInformationCollection = await DeviceInformation.FindAllAsync(advancedQuerySyntax);

                I2cConnectionSettings i2cConnectionSettings = new I2cConnectionSettings(0x48);

                i2cConnectionSettings.BusSpeed = I2cBusSpeed.FastMode;

                this.i2cDevice = await I2cDevice.FromIdAsync(deviceInformationCollection[0].Id, i2cConnectionSettings);
            }
            catch(Exception exception)
            {
                Debug.WriteLine("예외 : " + exception.Message);
            }

            this.timer = new Timer(TimerCallback, null, 0, 1000);
        }

        #endregion
    }
}

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using System;

using System.Diagnostics;

using System.Threading;

using Windows.Devices.Enumeration;

using Windows.Devices.I2c;

using Windows.Foundation;

using Windows.UI.Xaml.Controls;

namespace TestApplication

{

/// <summary>

/// 메인 페이지

/// </summary>

public sealed partial class MainPage : Page

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Field

////////////////////////////////////////////////////////////////////////////////////////// Private

#region Field

/// <summary>

/// I2C 장치

/// </summary>

private I2cDevice i2cDevice;

/// <summary>

/// 타이머

/// </summary>

private Timer timer;

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainPage()

/// <summary>

/// 생성자

/// </summary>

public MainPage()

{

InitializeComponent();

InitializeADT7410();

Unloaded += Page_Unloaded;

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

//////////////////////////////////////////////////////////////////////////////// Event

#region 페이지 언로드시 처리하기 - Page_Unloaded(sender, e)

/// <summary>

/// 페이지 언로드시 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private void Page_Unloaded(object sender, object e)

{

if(this.i2cDevice != null)

{

this.i2cDevice.Dispose();

}

#endregion

//////////////////////////////////////////////////////////////////////////////// Function

#region 온도 계산하기 - CalculateTemperature(highValue, lowValue)

/// <summary>

/// 온도 계산하기

/// </summary>

/// <param name="highValue">상위 값</param>

/// <param name="lowValue">하위 값</param>

/// <returns>온도</returns>

private static double CalculateTemperature(int highValue, int lowValue)

{

int value = (highValue << 5) + (lowValue >> 3);

if(value > 4096) // 온도가 영하인 경우

{

value = -1 * (8192 - value);

}

double temperature = value * 0.0625;

return temperature;

}

#endregion

#region 타이머 콜백 처리하기 - TimerCallback(state)

/// <summary>

/// 타이머 콜백 처리하기

/// </summary>

/// <param name="state">상태</param>

private void TimerCallback(object state)

{

string temperatureString;

byte[] byteArray = new byte[2];

try

{

this.i2cDevice.Read(byteArray);

}

catch(Exception exception)

{

Debug.WriteLine("예외 : " + exception.Message);

}

int highValue = ((int)byteArray[0]);

int lowValue = ((int)byteArray[1]);

double temperature = CalculateTemperature(highValue, lowValue);

Debug.WriteLine(temperature);

temperatureString = String.Format("온도 : {0:F4} ℃", temperature);

IAsyncAction task = this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>

{

this.textBlock.Text = temperatureString;

});

}

#endregion

#region ADT7410 초기화하기 - InitializeADT7410()

/// <summary>

/// ADT7410 초기화하기

/// </summary>

private async void InitializeADT7410()

{

try

{

string advancedQuerySyntax = I2cDevice.GetDeviceSelector();

DeviceInformationCollection deviceInformationCollection = await DeviceInformation.FindAllAsync(advancedQuerySyntax);

I2cConnectionSettings i2cConnectionSettings = new I2cConnectionSettings(0x48);

i2cConnectionSettings.BusSpeed = I2cBusSpeed.FastMode;

this.i2cDevice = await I2cDevice.FromIdAsync(deviceInformationCollection[0].Id, i2cConnectionSettings);

}

catch(Exception exception)

{

Debug.WriteLine("예외 : " + exception.Message);

}

this.timer = new Timer(TimerCallback, null, 0, 1000);

}

#endregion

}

TestApplication.zip

[C#/UWP/RASPBERRYPI] HC-SR501 PIR 센서 사용하기

■ HC-SR501 PIR 센서를 사용하는 방법을 보여준다. ▶ 부품 내역


────────────────
구분        모델      수량  비고
─────  ────  ──  ──
SENSOR/PIR  HC-SC501  1
────────────────

────────────────

구분 모델 수량 비고

───── ──── ── ──

SENSOR/PIR HC-SC501 1

────────────────

[회로 구성도] ▶ MainPage.xaml


<Page x:Class="TestPIR.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="using:TestPIR"
    mc:Ignorable="d">
    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <TextBlock x:Name="messageTextBlock"
            HorizontalAlignment="Center"
            VerticalAlignment="Center"
            FontSize="96" />
    </Grid>
</Page>

<Page x:Class="TestPIR.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:local="using:TestPIR"

mc:Ignorable="d">

<TextBlock x:Name="messageTextBlock"

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="96" />

</Grid>

</Page>

▶ MainPage.xaml.cs


using System.Threading.Tasks;
using Windows.Devices.Gpio;
using Windows.Foundation;
using Windows.UI.Core;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace TestPIR
{
    /// <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>
        /// PIR 핀 번호
        /// </summary>
        private const int PIR_PIN_NUMBER = 5;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainPage()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainPage()
        {
            InitializeComponent();

            Loaded += Page_Loaded;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #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 async void Page_Loaded(object sender, RoutedEventArgs e)
        {
            await InitializeGPIO();
        }

        #endregion
        #region GPIO 핀 값 변경시 처리하기 - gpioPin_ValueChanged(sender, e)

        /// <summary>
        /// GPIO 핀 값 변경시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void gpioPin_ValueChanged(GpioPin sender, GpioPinValueChangedEventArgs e)
        {
            if(e.Edge == GpioPinEdge.RisingEdge)
            {
                IAsyncAction task = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
                {
                    this.messageTextBlock.Text = "Motion detected!";
                });
            }

            if(e.Edge == GpioPinEdge.FallingEdge)
            {
                IAsyncAction task = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
                {
                    this.messageTextBlock.Text = "";
                });
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region GPIO 초기화 하기 - InitializeGPIO()

        /// <summary>
        /// GPIO 초기화 하기
        /// </summary>
        private async Task InitializeGPIO()
        {
            this.gpioController = GpioController.GetDefault();

            if(this.gpioController == null)
            {
                this.gpioPin = null;

                return;
            }

            this.gpioPin = gpioController.OpenPin(PIR_PIN_NUMBER);

            if(this.gpioPin.IsDriveModeSupported(GpioPinDriveMode.InputPullUp))
            {
                this.gpioPin.SetDriveMode(GpioPinDriveMode.InputPullUp);
            }
            else
            {
                this.gpioPin.SetDriveMode(GpioPinDriveMode.Input);
            }

            this.messageTextBlock.Text = "PIR 초기화...";

            await Task.Delay(10000);

            this.messageTextBlock.Text = string.Empty;

            this.gpioPin.ValueChanged += gpioPin_ValueChanged;
        }

        #endregion
    }
}

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using System.Threading.Tasks;

using Windows.Devices.Gpio;

using Windows.Foundation;

using Windows.UI.Core;

using Windows.UI.Xaml;

using Windows.UI.Xaml.Controls;

namespace TestPIR

{

/// <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>

/// PIR 핀 번호

/// </summary>

private const int PIR_PIN_NUMBER = 5;

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainPage()

/// <summary>

/// 생성자

/// </summary>

public MainPage()

{

InitializeComponent();

Loaded += Page_Loaded;

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

//////////////////////////////////////////////////////////////////////////////// Event

#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 async void Page_Loaded(object sender, RoutedEventArgs e)

{

await InitializeGPIO();

}

#endregion

#region GPIO 핀 값 변경시 처리하기 - gpioPin_ValueChanged(sender, e)

/// <summary>

/// GPIO 핀 값 변경시 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private void gpioPin_ValueChanged(GpioPin sender, GpioPinValueChangedEventArgs e)

{

if(e.Edge == GpioPinEdge.RisingEdge)

{

IAsyncAction task = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>

{

this.messageTextBlock.Text = "Motion detected!";

});

}

if(e.Edge == GpioPinEdge.FallingEdge)

{

IAsyncAction task = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>

{

this.messageTextBlock.Text = "";

});

}

#endregion

//////////////////////////////////////////////////////////////////////////////// Function

#region GPIO 초기화 하기 - InitializeGPIO()

/// <summary>

/// GPIO 초기화 하기

/// </summary>

private async Task InitializeGPIO()

{

this.gpioController = GpioController.GetDefault();

if(this.gpioController == null)

{

this.gpioPin = null;

return;

}

this.gpioPin = gpioController.OpenPin(PIR_PIN_NUMBER);

if(this.gpioPin.IsDriveModeSupported(GpioPinDriveMode.InputPullUp))

{

this.gpioPin.SetDriveMode(GpioPinDriveMode.InputPullUp);

}

else

{

this.gpioPin.SetDriveMode(GpioPinDriveMode.Input);

}

this.messageTextBlock.Text = "PIR 초기화...";

await Task.Delay(10000);

this.messageTextBlock.Text = string.Empty;

this.gpioPin.ValueChanged += gpioPin_ValueChanged;

}

#endregion

}

TestApplication.zip

[C#/UWP/RASPBERRYPI] LM75A 디지털 온도 센서 사용하기

■ LM75A 디지털 온도 센서를 사용하는 방법을 보여준다. ▶ 부품 내역


───────────────────────
구분                모델          수량  비고
─────────  ──────  ──  ───
SENSOR/TEMPERATURE  JMOD-TEMP-1   1     LM75A
───────────────────────

───────────────────────

구분 모델 수량 비고

───────── ────── ── ───

SENSOR/TEMPERATURE JMOD-TEMP-1 1 LM75A

───────────────────────

[회로 구성도] ▶ MainPage.xaml


<Page x:Class="TestApplication.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="using:TestApplication"
    mc:Ignorable="d">
    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <TextBlock x:Name="textBlock"
            HorizontalAlignment="Center"
            VerticalAlignment="Center"
            TextWrapping="Wrap"
            FontWeight="Bold"
            FontSize="48" />
    </Grid>
</Page>

<Page x:Class="TestApplication.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:local="using:TestApplication"

mc:Ignorable="d">

<TextBlock x:Name="textBlock"

HorizontalAlignment="Center"

VerticalAlignment="Center"

TextWrapping="Wrap"

FontWeight="Bold"

FontSize="48" />

</Grid>

</Page>

▶ MainPage.xaml.cs


using System;
using System.Diagnostics;
using System.Threading;
using Windows.Devices.Enumeration;
using Windows.Devices.I2c;
using Windows.Foundation;
using Windows.UI.Core;
using Windows.UI.Xaml.Controls;

namespace TestApplication
{
    /// <summary>
    /// 메인 페이지
    /// </summary>
    public sealed partial class MainPage : Page
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// I2C 장치
        /// </summary>
        private I2cDevice i2cDevice = null;

        /// <summary>
        /// 타이머
        /// </summary>
        private Timer timer = null;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainPage()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainPage()
        {
            this.InitializeComponent();

            InitializeI2CDevice();

            Unloaded += Page_Unloaded;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 페이지 언로드시 처리하기 - Page_Unloaded(sender, e)

        /// <summary>
        /// 페이지 언로드시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Page_Unloaded(object sender, object e)
        {
            if(this.i2cDevice != null)
            {
                this.i2cDevice.Dispose();
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 온도 계산하기 - CalculateTemperature(highValue, logValue)

        /// <summary>
        /// 온도 계산하기
        /// </summary>
        /// <param name="highValue">상위 값</param>
        /// <param name="logValue">하위 값</param>
        /// <returns>온도</returns>
        private static double CalculateTemperature(int highValue, int logValue)
        {
            int value = (highValue << 3) + (logValue >> 5);

            if(value >= 1024) // 온도가 영하인 경우
            {
                value -= 2048;
            }

            double temperature = value * 0.0625;

            return temperature;
        }

        #endregion
        #region 타이머 콜백 처리하기 - TimerCallback(state)

        /// <summary>
        /// 타이머 콜백 처리하기
        /// </summary>
        /// <param name="state">상태</param>
        private void TimerCallback(object state)
        {
            string temperatureString;

            byte[] byteArray = new byte[2];

            try
            {
                this.i2cDevice.Read(byteArray);
            }
            catch(Exception error)
            {
                Debug.WriteLine("예외 : " + error.Message);
            }

            int highValue = ((int)byteArray[0]);
            int lowValue  = ((int)byteArray[1]);

            double temperature = CalculateTemperature(highValue, lowValue);

            Debug.WriteLine(temperature);

            temperatureString = string.Format("온도 : {0:F4} ℃", temperature);

            IAsyncAction task = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
            {
                this.textBlock.Text = temperatureString;
            });
        }

        #endregion
        #region I2C 장치 초기화 하기 - InitializeI2CDevice()

        /// <summary>
        /// I2C 장치 초기화 하기
        /// </summary>
        private async void InitializeI2CDevice()
        {
            try
            {
                string advancedQuerySyntax = I2cDevice.GetDeviceSelector();

                DeviceInformationCollection deviceInformationCollection = await DeviceInformation.FindAllAsync(advancedQuerySyntax);

                I2cConnectionSettings i2cConnectionSettings = new I2cConnectionSettings(0x48);

                i2cConnectionSettings.BusSpeed = I2cBusSpeed.FastMode;

                this.i2cDevice = await I2cDevice.FromIdAsync(deviceInformationCollection[0].Id, i2cConnectionSettings);
            }
            catch(Exception exception)
            {
                Debug.WriteLine("예외 : " + exception.Message);
            }

            this.timer = new Timer(TimerCallback, null, 0, 1000);
        }

        #endregion
    }
}

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using System;

using System.Diagnostics;

using System.Threading;

using Windows.Devices.Enumeration;

using Windows.Devices.I2c;

using Windows.Foundation;

using Windows.UI.Core;

using Windows.UI.Xaml.Controls;

namespace TestApplication

{

/// <summary>

/// 메인 페이지

/// </summary>

public sealed partial class MainPage : Page

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Field

////////////////////////////////////////////////////////////////////////////////////////// Private

#region Field

/// <summary>

/// I2C 장치

/// </summary>

private I2cDevice i2cDevice = null;

/// <summary>

/// 타이머

/// </summary>

private Timer timer = null;

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainPage()

/// <summary>

/// 생성자

/// </summary>

public MainPage()

{

this.InitializeComponent();

InitializeI2CDevice();

Unloaded += Page_Unloaded;

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

//////////////////////////////////////////////////////////////////////////////// Event

#region 페이지 언로드시 처리하기 - Page_Unloaded(sender, e)

/// <summary>

/// 페이지 언로드시 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private void Page_Unloaded(object sender, object e)

{

if(this.i2cDevice != null)

{

this.i2cDevice.Dispose();

}

#endregion

//////////////////////////////////////////////////////////////////////////////// Function

#region 온도 계산하기 - CalculateTemperature(highValue, logValue)

/// <summary>

/// 온도 계산하기

/// </summary>

/// <param name="highValue">상위 값</param>

/// <param name="logValue">하위 값</param>

/// <returns>온도</returns>

private static double CalculateTemperature(int highValue, int logValue)

{

int value = (highValue << 3) + (logValue >> 5);

if(value >= 1024) // 온도가 영하인 경우

{

value -= 2048;

}

double temperature = value * 0.0625;

return temperature;

}

#endregion

#region 타이머 콜백 처리하기 - TimerCallback(state)

/// <summary>

/// 타이머 콜백 처리하기

/// </summary>

/// <param name="state">상태</param>

private void TimerCallback(object state)

{

string temperatureString;

byte[] byteArray = new byte[2];

try

{

this.i2cDevice.Read(byteArray);

}

catch(Exception error)

{

Debug.WriteLine("예외 : " + error.Message);

}

int highValue = ((int)byteArray[0]);

int lowValue = ((int)byteArray[1]);

double temperature = CalculateTemperature(highValue, lowValue);

Debug.WriteLine(temperature);

temperatureString = string.Format("온도 : {0:F4} ℃", temperature);

IAsyncAction task = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>

{

this.textBlock.Text = temperatureString;

});

}

#endregion

#region I2C 장치 초기화 하기 - InitializeI2CDevice()

/// <summary>

/// I2C 장치 초기화 하기

/// </summary>

private async void InitializeI2CDevice()

{

try

{

string advancedQuerySyntax = I2cDevice.GetDeviceSelector();

DeviceInformationCollection deviceInformationCollection = await DeviceInformation.FindAllAsync(advancedQuerySyntax);

I2cConnectionSettings i2cConnectionSettings = new I2cConnectionSettings(0x48);

i2cConnectionSettings.BusSpeed = I2cBusSpeed.FastMode;

this.i2cDevice = await I2cDevice.FromIdAsync(deviceInformationCollection[0].Id, i2cConnectionSettings);

}

catch(Exception exception)

{

Debug.WriteLine("예외 : " + exception.Message);

}

this.timer = new Timer(TimerCallback, null, 0, 1000);

}

#endregion

}

JMOD-TEMP-1 사용자설명서.docx

[ARDUINO] 불꽃 감지 센서(Flame Sensor, Photo Transistor) 사용하기

■ 불꽃 감지 센서(Flame Sensor, Photo Transistor)를 사용하는 방법을 보여준다. ▶ 부품 내역


─────────────────────
구분          모델  수량  비고
──────  ──  ──  ────────
SENSOR/FLAME        1     Photo Transistor
REGISTANCE          1     10KΩ 저항
PIEZO BUZZER        1
─────────────────────

─────────────────────

구분 모델 수량 비고

────── ── ── ────────

SENSOR/FLAME 1 Photo Transistor

REGISTANCE 1 10KΩ 저항

PIEZO BUZZER 1

─────────────────────

▶ 소스 코드


int flame  = A0;
int buzzer = 12;
int value  = 0;

void setup()
{
    pinMode(buzzer, OUTPUT);

    pinMode(flame, INPUT);

    Serial.begin(9600);
}

void loop()
{
    value = analogRead(flame);

    Serial.println(value);

    if(value >= 1)
    {
        digitalWrite(buzzer, HIGH);
    }
    else
    {
        digitalWrite(buzzer, LOW);
    }

    delay(500);
}

int flame = A0;

int buzzer = 12;

int value = 0;

void setup()

{

pinMode(buzzer, OUTPUT);

pinMode(flame, INPUT);

Serial.begin(9600);

}

void loop()

{

value = analogRead(flame);

Serial.println(value);

if(value >= 1)

{

digitalWrite(buzzer, HIGH);

}

else

{

digitalWrite(buzzer, LOW);

}

delay(500);

}

[ARDUINO] 조도 센서(Illuminance Sensor) 사용하기

■ 조도 센서(Illuminance Sensor)를 사용하는 방법을 보여준다. ▶ 부품 내역


──────────────────────
구분                모델  수량  비고
─────────  ──  ──  ──────
SENSOR/ILLUMINANCE        1     조도 센서
REGISTANCE                1     10K Ω 저항
LED                       1
REGISTANCE                1     300 Ω 저항
──────────────────────

──────────────────────

구분 모델 수량 비고

───────── ── ── ──────

SENSOR/ILLUMINANCE 1 조도 센서

REGISTANCE 1 10K Ω 저항

LED 1

REGISTANCE 1 300 Ω 저항

──────────────────────

▶ 소스 코드


#define POT_PIN A0
#define LED_PIN 13

void setup()
{
    pinMode(LED_PIN, OUTPUT);

    pinMode(POT_PIN, INPUT);

    Serial.begin(9600);
}

void loop()
{
    int value = 0;

    value = analogRead(POT_PIN);

    Serial.println(value);

    // 조도 센서 값이 100 미만이면 LED를 켠다.
    if(value < 100)
    {
        digitalWrite(LED_PIN, HIGH);
    }
    else
    {
        digitalWrite(LED_PIN, LOW);
    }

    delay(500);
}

#define POT_PIN A0

#define LED_PIN 13

void setup()

{

pinMode(LED_PIN, OUTPUT);

pinMode(POT_PIN, INPUT);

Serial.begin(9600);

}

void loop()

{

int value = 0;

value = analogRead(POT_PIN);

Serial.println(value);

// 조도 센서 값이 100 미만이면 LED를 켠다.

if(value < 100)

{

digitalWrite(LED_PIN, HIGH);

}

else

{

digitalWrite(LED_PIN, LOW);

}

delay(500);

}

[ARDUINO] 온습도 센서(Temperature-Humidity Sensor) 사용하기

■ 온습도 센서(Temperature-Humidity Sensor)를 사용하는 방법을 보여준다. ▶ 부품 내역


──────────────────
구분              모델    수량  비고
────────  ───  ──  ──
SENSOR/HUMIDITY   DHT11   1
──────────────────

──────────────────

구분 모델 수량 비고

──────── ─── ── ──

SENSOR/HUMIDITY DHT11 1

──────────────────

▶ 소스 코드


#include <DHT11.h>

int pin = 2;

DHT11 dht11(pin);

void setup()
{
    Serial.begin(9600);
}

void loop()
{
    int   errorCode;
    float temperature; // 온도
    float humidity;    // 습도

    if((errorCode = dht11.read(humidity, temperature)) == 0)
    {
        Serial.print("Temperature : ");

        Serial.print(temperature);

        Serial.print(" Humidity : ");

        Serial.print(humidity);

        Serial.println();
    }

    delay(1000);
}

#include <DHT11.h>

int pin = 2;

DHT11 dht11(pin);

void setup()

{

Serial.begin(9600);

}

void loop()

{

int errorCode;

float temperature; // 온도

float humidity; // 습도

if((errorCode = dht11.read(humidity, temperature)) == 0)

{

Serial.print("Temperature : ");

Serial.print(temperature);

Serial.print(" Humidity : ");

Serial.print(humidity);

Serial.println();

}

delay(1000);

}

[ARDUINO] 온도 센서(Temperature Sensor) 사용하기

■ 온도 센서(Temperature Sensor)를 사용하는 방법을 보여준다. ▶ 부품 내역


───────────────────
구분                모델    수량  비고
─────────  ───  ──  ──
SENSOR/TEMPERATURE  LM35DZ  1
───────────────────

───────────────────

구분 모델 수량 비고

───────── ─── ── ──

SENSOR/TEMPERATURE LM35DZ 1

───────────────────

※ 반원 부분을 뒤로 하고 라벨이 보이는 면을 앞면이다. ▶ 부품