I updated my Edison to the latest Ubilinux distro and installed screen. I then SSH into my edison and login to the default root account. I executed: screen /dev/ttyMFD2 115200 and screen loads but screen remains blank where it should output the Arduino sensor data.
To further troubleshoot this I loaded another Putty terminal window and this time instead of SSH into edison, I decided to connect to the edison via serial: /dev/ttyUSB0 baud:115200
and now I can view the sensor data. I still have not solved my original issue. How do I get the Arduino to communicate with the edison and vise versa and then later use NodeJS to do the same?