[Arduino] CLI serial monitor

[Olivier Burelli]

Hello,

i am playing with ARDUINO UNO on my 6.2 stable laptop.

I am trying to read the serial monitor message from the board.

from dmesg:
(...)
umodem0 at uhub3 port 1 configuration 1 interface 0 "Arduino SrlArduino Uno" 
rev 1.10/0.01 addr 3
umodem0: data interface 1, has no CM over data, has break
umodem0: status change notification available
ucom0 at umodem0

should i use cat /dev/DEVICE >> file.txt ?
or
(stty raw; cat > /home/me/received.txt) < /dev/device ?

--> which device is corresponding ?

does the information: "data interface 1, has no CM over data, has
break" means that OpenBSD can not receive data from the board ?

For example, i would like to catcg the strinf from the code below:
(...)
void setup(void) {
        Serial.begin(9600);
        // send the value of a string to the serial port (USB)
        Serial.print("Hello world");
        return;
}
(...)

Thanks in advance.

O.