title: Can't use Interceptty or slsnif to sniff data sent via serial port
body: <p>I want to determine exactly what data is sent by a controller to a off-board motor controller that has its own processor. I have not had success with plain text commands or json commands either. There is a program that the motor controller works with, however I need my own program to send the same information in the right format. Software being used is Coolterm and a tinyg board. </p>
  
  <p>With interceptty I have been able to get one way communication back from the motor controller but not the data being sent to the controller. <code>"interceptty -s 'ispeed 115200 ospeed 115200' /dev/ttyUSB0 /dev/tty&lt;&gt;" In the "&lt;&gt;"</code> I have tried my own words, letters, or other directories like S1. I have also tried <code>/dev/&lt;&gt;</code> but coolterm won't recognize it in the dropdown menu. </p>
  
  <p>No real error message just can't get data being sent by the computer. Can get data received.</p>