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Making Serial ports on a Windows PC in C# work with arduino

 This has driven me nuts for 2 days.  I found an obscure note in the corner of the internet that gave me the answer.   To get a serial port on a windows PC  using C# to talk to an arduino.             myPort = new SerialPort();             myPort.BaudRate = 9600;             myPort.PortName = "COM5";             myPort.Parity = Parity.None;             myPort.DataBits = 8;             myPort.StopBits = StopBits.One;             myPort.Handshake = Handshake.None;             myPort.RtsEnable = true;             myPort.DtrEnable = true;             myPort.Encoding = Encoding.ASCII;             myPort.ReadTimeout = 550;       ...

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