title: C# SerialPort WriteLine gets stuck
body: <p>I'm trying to send PWM target to Arduino Uno board via serial port via following C# code.</p>
  <pre><code>private SerialPort myPort= new SerialPort();       
  myPort.BaudRate = 9600;
  myPort.DtrEnable = true;
  myPort.PortName = &quot;COM3&quot;;
  myPort.Open();
  myPort.WriteLine(&quot;80&quot;);
  </code></pre>
  <p>Everytime the code gets stuck at the last line (WriteLine) without giving any errors. It just does not proceed further. What is causing it?</p>