Products of Windmill Software
Free serial port monitor software lets you troubleshoot communications problems and log data from RS232, RS422, RS485 and Modbus instruments. Control the state of the PC's serial port output lines and see the state of the serial port input lines. Free technical support for life. Understands ASCII, hexadecimal or binary data. Data logging to text.
Freeware download of ComDebug 2.0, size