회로
•아두이노 UNO
•D2 = DHT22.SDA
•A0 = Photocell과 GND 사이
•Photocell(CDS)의 연결
•VDD – Photocell – GND
•VDD
•GND
회로 연결 - TinkerCAD
arduino code
#include <DHT22.h>
#define pinDATA 2 // 디지털 2번핀
DHT22 dht22(pinDATA);
void setup() {
Serial.begin(9600);
}
void loop() {
float t = dht22.getTemperature();
float h = dht22.getHumidity();
int value = analogRead(A0);
if (dht22.getLastError() != dht22.OK) {
Serial.print("last error :");
Serial.println(dht22.getLastError());
}
float v = h*10000 + t;
// 온도, 습도, 조도의 순서로 출력
Serial.print(t,1); Serial.print("\t"); Serial.print(h,1); Serial.print("\t"); Serial.println(value);
delay(2000);
}
디자인
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;
namespace _025_SensorMonitoring
{
public partial class Form1 : Form
{
SerialPort sPort = null;
private double xCount = 200;
// List<SensorData> myData = new List<SensorData>();
// 시뮬레이션 용
Timer t = new Timer();
Random r = new Random();
public Form1()
{
InitializeComponent();
foreach(var ports in SerialPort.GetPortNames())
comboBox1.Items.Add(ports);
comboBox1.Text = "Select Port";
progressBar1.Minimum = 0;
progressBar1.Maximum = 1023;
InitSetting();
ChartSetting();
}
private void ChartSetting()
{
chart1.Titles.Add("조도");
chart2.Titles.Add("온도/습도");
chart1.ChartAreas.Clear();
chart1.ChartAreas.Add("limu");
chart1.Series.Clear();
chart1.Series.Add("lumi");
chart1.ChartAreas[0].AxisX.Minimum = 0;
chart1.ChartAreas[0].AxisX.Maximum = xCount;
chart1.ChartAreas[0].AxisX.Interval = xCount/4;
chart1.ChartAreas[0].AxisX.MajorGrid.LineColor = Color.Gray;
chart1.ChartAreas[0].AxisX.MajorGrid.LineDashStyle
= ChartDashStyle.Dash;
chart1.ChartAreas[0].AxisY.Minimum = 0;
chart1.ChartAreas[0].AxisY.Maximum = 800;
chart1.ChartAreas[0].AxisY.Interval = 200;
chart1.ChartAreas[0].AxisY.MajorGrid.LineColor = Color.Gray;
chart1.ChartAreas[0].AxisY.MajorGrid.LineDashStyle
= ChartDashStyle.Dash;
chart1.ChartAreas[0].BackColor = Color.Black;
chart2.Series.Clear();
chart2.Series.Add("temp");
chart2.Series.Add("humi");
chart2.ChartAreas[0].AxisX.Minimum = 0;
chart2.ChartAreas[0].AxisX.Maximum = xCount;
chart2.ChartAreas[0].AxisX.Interval = xCount / 4;
chart2.ChartAreas[0].AxisX.MajorGrid.LineColor = Color.Gray;
chart2.ChartAreas[0].AxisX.MajorGrid.LineDashStyle
= ChartDashStyle.Dash;
chart2.ChartAreas[0].AxisY.Minimum = 0;
chart2.ChartAreas[0].AxisY.Maximum = 100;
chart2.ChartAreas[0].AxisY.Interval = 20;
chart2.ChartAreas[0].AxisY.MajorGrid.LineColor = Color.Gray;
chart2.ChartAreas[0].AxisY.MajorGrid.LineDashStyle
= ChartDashStyle.Dash;
chart2.ChartAreas[0].BackColor = Color.Black;
// Series 디자인
chart1.Series[0].ChartType = SeriesChartType.Line;
chart1.Series[0].Color = Color.LightGreen;
chart1.Series[0].BorderWidth = 2;
chart2.Series[0].Color = Color.LightBlue;
chart2.Series[0].BorderWidth = 2;
chart2.Series[0].ChartType = SeriesChartType.Line;
chart2.Series[1].Color = Color.Orange;
chart2.Series[1].BorderWidth = 2;
chart2.Series[1].ChartType = SeriesChartType.Line;
}
private void InitSetting()
{
btnPortValue.BackColor = Color.Blue;
btnPortValue.ForeColor = Color.White;
btnPortValue.Text = "";
btnPortValue.Font
= new Font("맑은 고딕", 12, FontStyle.Bold);
lblConnectionTime.Text = "Connection time : ";
txtCount.TextAlign = HorizontalAlignment.Center;
btnConnect.Enabled = true;
btnDisconnect.Enabled = false;
}
private void button2_Click(object sender, EventArgs e)
{
}
private void 시작ToolStripMenuItem_Click(object sender, EventArgs e)
{
t.Interval = 1000;
t.Tick += T_Tick;
t.Start();
}
private void T_Tick(object sender, EventArgs e)
{
int value = r.Next(1024);
ShowValue(value.ToString());
}
private void ShowValue(string v)
{
listBox1.Items.Add(v);
listBox1.SelectedIndex = listBox1.Items.Count - 1;
progressBar1.Value = int.Parse(v);
chart1.Series[0].Points.Add(int.Parse(v));
}
}
}
private void 시작ToolStripMenuItem_Click(object sender, EventArgs e)
{
t.Interval = 1000;
t.Tick += T_Tick;
t.Start();
}
private void T_Tick(object sender, EventArgs e)
{
int value = r.Next(800);
int temp = r.Next(35);
int humi = r.Next(30, 90);
string s = string.Format("{0}\t{1}\t{2}", temp, humi, value);
ShowValue(s);
}
static int counter = 0;
static int skip = 0;
private void ShowValue(string s)
{
counter++;
listBox1.Items.Add(s);
listBox1.SelectedIndex = listBox1.Items.Count - 1;
if (++skip < 3) // 통신된 데이터 3개를 무시한다
return;
else
skip = 3;
string[] sub = new string[3];
sub = s.Split('\t');
double temp = 0; // 온도
double humi = 0; // 습도
int lumi = 0; // 조도
temp = double.Parse(sub[0]);
humi = double.Parse(sub[1]);
lumi = int.Parse(sub[2]);
progressBar1.Value = lumi;
chart1.Series[0].Points.Add(lumi);
chart2.Series[0].Points.Add(temp);
chart2.Series[1].Points.Add(humi);
// 차트에 스크롤 기능 추가
chart1.ChartAreas[0].AxisX.Minimum = 0;
chart1.ChartAreas[0].AxisX.Maximum
= (counter >= xCount) ? counter : xCount;
if(counter > xCount)
{
chart1.ChartAreas[0].AxisX.ScaleView.Zoom(
counter - xCount, counter);
chart2.ChartAreas[0].AxisX.ScaleView.Zoom(
counter - xCount, counter);
}
chart2.ChartAreas[0].AxisX.Minimum = 0;
chart2.ChartAreas[0].AxisX.Maximum
= (counter >= xCount) ? counter : xCount;
}
private void 끝ToolStripMenuItem_Click(object sender, EventArgs e)
{
t.Stop();
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (sPort != null) // sPort가 이미 설정되었다면?
return;
ComboBox cb = sender as ComboBox; // (ComboBox)sender
sPort = new SerialPort(cb.SelectedItem.ToString());
sPort.Open();
sPort.DataReceived += SPort_DataReceived;
btnDisconnect.Enabled = true;
btnConnect.Enabled = false;
}
private void SPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
string s = sPort.ReadLine();
this.BeginInvoke(new Action(() => { ShowValue(s); }));
}
}
}