title: send commands to serial port using putty and .bat file
body: <p>I would like to send following AT commands automatically by creating a .bat file using PuTTy. </p>
  
  <p>AT</p>
  
  <p>ok</p>
  
  <p>AT+CPIN = 1234</p>
  
  <p>ok</p>
  
  <p>I can do it manually so far. But I would like to do it automatically by executing the above commands by just clicking on a batch file. Can someone please help me with the commands to prepare my .bat file? Thanks in advance!</p>