title: check if specific device is connected to COM Port
body: <p>I want to check if one specific device is connected to one of my serial ports. </p>
  
  <p>with <code>list_ports.comports()</code> I get all the COM Ports
  <br>
   with  <code>x = list_ports.grep("0403:6001")</code>
  I can search for a specific device. This gives me
  <br>
  <code>&lt;class 'serial.tools.list_ports_common.ListPortInfo'&gt;</code> output.
  <br></p>
  
  <p>But I just want an a bolean expression as an output if this device is connected or not</p>
  
  <p>I have read this answer, but it didnt solve my problem <a href="https://stackoverflow.com/questions/7756695/python-how-to-detect-device-name-id-on-a-serial-com/9087586">Pyserial get the name of the device behind a COM Port
  </a></p>