Rasp Pi 4 UART's

Support & Help Requests Raspberry Pi
#1

Hello,

I am trying to use the Pi 4 uart on GPIO 14/15 but do not see any ttyS0 or any serial0 / 1 available. How can I make this uart available for use with Ubuntu Marte 20.04.

Thks
Mark

#2

check /dev/ttyAMA0 for traffic.

#3

Ok, but is that not connected to the bluetooth module...