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Take Command / TCC Help v. 28

@SERIALPORTWRITE[n,text]:  Writes a string to the serial port. n is the handle returned by a previous call to @SERIALPORTOPEN. Returns 1 if the write succeeded, or 0 if it failed.

 

Example:

 

set port=%@serialportopen[com1,9600]

set string=%@serialportread[%port]

echo %@serialportwrite[%port,Goodbye!"

echo %@serialportflush[%port]

echo %@serialportclose[%port]