Via a simple code implements a serial port communication

SerialportSample
................\SerialportSample
................\................\33.ico
................\................\bin
................\................\...\Debug
................\................\...\.....\SerialportSample.exe
................\................\...\.....\SerialportSample.pdb
................\................\...\.....\SerialportSample.vshost.exe
................\................\...\.....\SerialportSample.vshost.exe.manifest
................\................\...\Release
................\................\...\.......\SerialportSample.exe
................\................\...\.......\SerialportSample.pdb
................\................\...\.......\SerialportSample.vshost.exe
................\................\...\.......\SerialportSample.vshost.exe.manifest
................\................\Form1.cs
................\................\Form1.Designer.cs
................\................\Form1.resx
................\................\obj
................\................\...\x86
................\................\...\...\Debug
................\................\...\...\.....\DesignTimeResolveAssemblyReferences.cache
................\................\...\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
................\................\...\...\.....\GenerateResource.read.1.tlog
................\................\...\...\.....\GenerateResource.write.1.tlog
................\................\...\...\.....\SerialportSample.csproj.FileListAbsolute.txt
................\................\...\...\.....\SerialportSample.exe
................\................\...\...\.....\SerialportSample.Form1.resources
................\................\...\...\.....\SerialportSample.pdb
................\................\...\...\.....\SerialportSample.Properties.Resources.resources
................\................\...\...\.....\TempPE
................\................\...\...\Release
................\................\...\...\.......\DesignTimeResolveAssemblyReferences.cache
................\................\...\...\.......\DesignTimeResolveAssemblyReferencesInput.cache
................\................\...\...\.......\GenerateResource.read.1.tlog
................\................\...\...\.......\GenerateResource.write.1.tlog
................\................\...\...\.......\ResolveAssemblyReference.cache
................\................\...\...\.......\SerialportSample.csproj.FileListAbsolute.txt
................\................\...\...\.......\SerialportSample.exe
................\................\...\...\.......\SerialportSample.Form1.resources
................\................\...\...\.......\SerialportSample.pdb
................\................\...\...\.......\SerialportSample.Properties.Resources.resources
................\................\...\...\.......\TempPE
................\................\Program.cs
................\................\Properties
................\................\..........\AssemblyInfo.cs
................\................\..........\Resources.Designer.cs
................\................\..........\Resources.resx
................\................\..........\Settings.Designer.cs
................\................\..........\Settings.settings
................\................\SerialportSample.csproj
................\................\Service References
................\SerialportSample.sln
................\SerialportSample.suo

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