Press enter to run the command. It will open in the same window. If no code is
running, the window will be blank. Otherwise, you'll see the output of your code.
Great job! You've connected to the serial console!
Advanced Serial Console on Linux
Connecting to the serial console on Linux does not require installing any drivers, but
you may need to install screen using your package manager. You'll use a terminal
program to find your board, and screen to connect to it. There are a variety of
terminal programs such as gnome-terminal (called Terminal) or Konsole on KDE.
The tio program works as well to connect to your board, and has the benefit of
automatically reconnecting. You would need to install it using your package manager.
What's the Port?
First you'll want to find out which serial port your board is using. When you plug your
board in to USB on your computer, it connects to a serial port. The port is like a door
through which your board can communicate with your computer using USB.
The easiest way to determine which port the board is using is to first check without
the board plugged in. Open your terminal program and type the following:
ls /dev/ttyACM*
Each serial connection shows up in the /dev/ directory. It has a name that starts with tt
yACM. The command ls shows you a list of items in a directory. You can use * as a
wildcard, to search for files that start with the same letters but end in something
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