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March 16, 2000 12:00 AM

How can I talk to a serial (COM) port from the command line/batch file?

Windows IT Pro
InstantDoc ID #15283
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A. NT is a model of inconsistency when it comes to redirecting stdin and stdout. You can redirect console output to a serial port easily, but receiving input from the port is a problem. 

Command Line Terminal (CLT) for NT is a simple freeware utility designed to solve this issue. It can:

  • Opens a COM port using parameters you specify in an environment variable
  • Prints a message saying the port is open, or terminates with an error 
  • Sends whatever you type at the console to the COM port 
  • Prints whatever comes back from the COM port on the console 
  • Exits if you hit

Download CLT.ZIP (32KB) from http://www.ntfaq.com/download/clt.zip


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Comments
  • Anders Nielsen
    12 years ago
    Nov 02, 2000

    The link http://www.ntfaq.com/ntfaq/download/clt.zip is broken??

  • D MAURICE
    12 years ago
    Sep 12, 2000

    where is the clt.zip?

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