Serial port handling

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Windows

Arduino IDE

I couldn't find a way to save the serial monitor data to a disk file.

So find another app that allows communication in the serial line and save the output to a disk file (or allow copy-paste to do the same).

Visual Studio Code

From the menu: View -> Command Palette -> Type PlatformIO: New Terminal

(next time, this command will be first in line)

In this terminal type

pio device monitor > aaa.txt

It will try to open the communication and save it to the aaa.txt file.

Try pressing the start button on the robot (wheels up). Then press ctrl-C to stop the monitoring and inspect the file.

(the same for both Windows and Linux)

Linux

In Linux, the serial device is called /dev/ttyACM0 (typically), and to copy the robot output to a file is:

$ cat /dev/ttyACM0 > aaa.txt

And use ctrl-C to stop.

You can, in another terminal, send commands to the robot, i.e.:

$ echo "start" > /dev/ttyACM0

This is the same as pressing the start button.

Apple

I don't know