I have a UNO R3 connected to my PC [COM4] with a USB cable and connected to FTDI [RX to TX and TX to RX] module that is connected to my PC [COM6] with another USB cable.
The PC sends data by a program on COM6 to the UNO and it reflects that data back to the PC program perfectly. Now I want to add some debugging stuff from the UNO to the Serial Monitor of the IDE. Is there a way. I have to disconnect the RX/TX pins to upload from the IDE to the UNO or it hangs waiting for something that has gone astray I assume.
Can the two things coexist? Can I have something like "Serial2" for my PC to UNO communications and leave Serial for UNO to IDE communications?