Added real-time plot to view readings.

yasithHarischandra · May 1, 2022 · 10a4fdd · 10a4fdd
1 parent e655fe2
commit 10a4fdd
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Showing 5 changed files with 137 additions and 6 deletions.
diff --git a/PZEM004T_PC/Form1.Designer.cs b/PZEM004T_PC/Form1.Designer.cs
diff --git a/PZEM004T_PC/Form1.cs b/PZEM004T_PC/Form1.cs
@@ -8,6 +8,7 @@
 using System.Threading.Tasks;
 using System.Windows.Forms;
 using System.Threading;
+using System.Diagnostics;
 
 
 namespace PZEM004T_PC
@@ -16,6 +17,7 @@ public partial class Form1 : Form
     {
         public PZEM_004T_v3 energyMeter;
         public System.Windows.Forms.Timer timerRefreshSensorReading;
+        private readonly Stopwatch watch = new Stopwatch();
         public Form1()
         {
             InitializeComponent();
@@ -29,6 +31,22 @@ private void Form1_Load(object sender, EventArgs e)
             comboBoxComPorts.Items.AddRange(ports);
             comboBoxComPorts.SelectedIndex = 0;
 
+            var line = new OxyPlot.Series.LineSeries()
+            {
+                Color = OxyPlot.OxyColors.Blue,
+                StrokeThickness = 1,
+                MarkerSize = 2,
+                MarkerType = OxyPlot.MarkerType.Circle
+            };
+
+            var model = new OxyPlot.PlotModel
+            {
+                Title = $"{comboBoxSelectPlotVariable.SelectedItem:N0}"
+            };
+            model.Series.Add(line);
+
+            // load the model into the user control
+            plotView1.Model = model;
         }
 
         private void button1_Click(object sender, EventArgs e)
@@ -48,14 +66,15 @@ private void button1_Click(object sender, EventArgs e)
                         MessageBox.Show("Error reading power overload alarm threshold from sensor!\n" + error);
 
                     timerRefreshSensorReading.Start();
-                    Cursor.Current = Cursors.Default;
+                    watch.Start();
                 }
                 else
                     MessageBox.Show(error);
             }
             else
             {
                 timerRefreshSensorReading.Stop();
+                watch.Stop();
                 Cursor.Current = Cursors.WaitCursor;
                 Thread.Sleep(timerRefreshSensorReading.Interval + 1000);    //wait until auto sensor refresh is done
                 if (Program.CloseSerialPort(ref error))
@@ -93,6 +112,7 @@ private void timerRefreshSensorReading_Tick(object sender, EventArgs e)
             backgroundThread.Start();
             if (energyMeter == null)
                 return;
+            backgroundThread.Join();
 
             VoltageDisplay.Text = energyMeter.readings.GetVoltage().ToString();
             FreqDisplay.Text = energyMeter.readings.GetFrequency().ToString();
@@ -103,6 +123,14 @@ private void timerRefreshSensorReading_Tick(object sender, EventArgs e)
                 OverloadAlarmDisplay.BackColor = Color.Red;
             else 
                 OverloadAlarmDisplay.BackColor = Color.Green;
+
+
+           var s = (OxyPlot.Series.LineSeries)plotView1.Model.Series[0];
+           if (s.Points.Count >= 200)
+                s.Points.RemoveAt(0);
+
+            s.Points.Add(GetCorrectDataPoint());
+            this.plotView1.Model.InvalidatePlot(true);
         }
 
         private void buttonSettings_Click(object sender, EventArgs e)
@@ -111,5 +139,39 @@ private void buttonSettings_Click(object sender, EventArgs e)
             timerRefreshSensorReading.Stop();
             newSettingsWindow.Show();
         }
+
+        private void comboBoxSelectPlotVariable_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            plotView1.Model.Title = comboBoxSelectPlotVariable.Text;
+
+            var s = (OxyPlot.Series.LineSeries)plotView1.Model.Series[0];
+            s.Points.Clear();
+
+            if(energyMeter != null)
+                s.Points.Add(GetCorrectDataPoint());
+
+            this.plotView1.Model.InvalidatePlot(true);
+        }
+
+        private OxyPlot.DataPoint GetCorrectDataPoint()
+        {
+            double t = this.watch.ElapsedMilliseconds * 0.001;
+            OxyPlot.DataPoint point;
+
+            if (comboBoxSelectPlotVariable.Text == "Voltage")
+                point = new OxyPlot.DataPoint(t, (double)energyMeter.readings.GetVoltage());
+            else if (comboBoxSelectPlotVariable.Text == "Current")
+                point = new OxyPlot.DataPoint(t, (double)energyMeter.readings.GetCurrent());
+            else if (comboBoxSelectPlotVariable.Text == "Power")
+                point = new OxyPlot.DataPoint(t, (double)energyMeter.readings.GetPower());
+            else if (comboBoxSelectPlotVariable.Text == "Frequency")
+                point = new OxyPlot.DataPoint(t, (double)energyMeter.readings.GetFrequency());
+            else if (comboBoxSelectPlotVariable.Text == "Power Factor")
+                point = new OxyPlot.DataPoint(t, (double)energyMeter.readings.GetPowerFactor());
+            else
+                point = new OxyPlot.DataPoint(t, 0.0);
+
+            return point;
+        }
     }
 }
diff --git a/PZEM004T_PC/Form1.resx b/PZEM004T_PC/Form1.resx
@@ -120,4 +120,7 @@
   <metadata name="timerRefreshSensorReading.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>17, 17</value>
   </metadata>
+  <metadata name="$this.TrayHeight" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>25</value>
+  </metadata>
 </root>
diff --git a/PZEM004T_PC/PZEM004T_PC.csproj b/PZEM004T_PC/PZEM004T_PC.csproj
@@ -33,8 +33,29 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="OxyPlot, Version=2.1.0.0, Culture=neutral, PublicKeyToken=638079a8f0bd61e9, processorArchitecture=MSIL">
+      <HintPath>..\packages\OxyPlot.Core.2.1.0\lib\net45\OxyPlot.dll</HintPath>
+    </Reference>
+    <Reference Include="OxyPlot.WindowsForms, Version=2.1.0.0, Culture=neutral, PublicKeyToken=245eacd6b5d2d338, processorArchitecture=MSIL">
+      <HintPath>..\packages\OxyPlot.WindowsForms.2.1.0\lib\net45\OxyPlot.WindowsForms.dll</HintPath>
+    </Reference>
+    <Reference Include="PresentationCore" />
+    <Reference Include="PresentationFramework" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Drawing.Common, Version=4.0.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Drawing.Common.4.6.1\lib\net461\System.Drawing.Common.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Runtime.InteropServices.RuntimeInformation, Version=4.0.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Runtime.InteropServices.RuntimeInformation.4.3.0\lib\net45\System.Runtime.InteropServices.RuntimeInformation.dll</HintPath>
+      <Private>True</Private>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Windows.Forms.DataVisualization" />
+    <Reference Include="System.Xaml" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -44,6 +65,8 @@
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml" />
+    <Reference Include="WindowsBase" />
+    <Reference Include="WindowsFormsIntegration" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Form1.cs">
@@ -77,6 +100,7 @@
     <EmbeddedResource Include="Settings.resx">
       <DependentUpon>Settings.cs</DependentUpon>
     </EmbeddedResource>
+    <None Include="packages.config" />
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>

diff --git a/PZEM004T_PC/packages.config b/PZEM004T_PC/packages.config
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="OxyPlot.Core" version="2.1.0" targetFramework="net472" />
+  <package id="OxyPlot.WindowsForms" version="2.1.0" targetFramework="net472" />
+  <package id="System.Drawing.Common" version="4.6.1" targetFramework="net472" />
+  <package id="System.Runtime.InteropServices.RuntimeInformation" version="4.3.0" targetFramework="net472" />
+  <package id="System.ValueTuple" version="4.5.0" targetFramework="net472" />
+</packages>