I need to see the commands being sent back and forth. On Windows I 'm using this application: [url=http://www.aggsoft.com/serial-port-monitor.htm]Serial Port Monitor[/url]. I need something that does the same on Linux. It must be able to run on the same machine that is running the application that uses the port. After searching a lot of Linux apps that purport to do this, I canít find any that will actually do it. Any ideas?