Can Serial Monitor via USB be Utilized on UNO if RX pin is Already Used?

I have a project which is using the TX pin on an ESP8266 12-E to communicate with the RX pin on an UNO. Is there any way to use the UNO's USB to connect to my computer's serial monitor in order to debug the code running on the UNO? Short of connecting an LCD to the UNO is there any other way to produce output from the UNO?

As long as the Tx is unused, you can direct it anywhere you heart desires.

DKWatson:
As long as the Tx is unused, you can direct it anywhere you heart desires.

I wonder which Tx you are referring to?

@stcline,
When you have a serial connection from the PC to the Uno it will hold the Uno’s Rx pin HIGH because that is the normal idle state for serial comms. Because the Uno’s Rx is being held HIGH the ESP8266 won’t be able to communicate with it.

What you could do is use a USB-TTL cable between the PC and the Uno and just connect it to the Uno Tx and GND. That will leave the Uno’s Rx free.

The other possibility is to use SoftwareSerial on the Uno for communication with the ESP8266.

…R