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How can I talk to a serial (COM) port from the command line/batch file?
John Savill
March 15, 2000
1 Min Read
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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