title: How can I send a series of hex commands out of a COM port using a Windows batch file?
body: <p>So far I have a batch file with the following contents...</p>
  
  <pre><code>MODE COM1:19,n,8,1
  copy off.hex \\.\com1 /b
  </code></pre>
  
  <p>The contents of off.hex is where I am stuck.
  I need the code shown below inside that file.</p>
  
  <p><img src="https://i.stack.imgur.com/SnUac.png" alt="rs232_codes"></p>