Can you recommend a script to send data to a port?

Question

Arduino

It is necessary that the script, under a certain condition, send a word or just a symbol to the port, and Arduino receives this data from the port side and, in turn, after receiving it, also performs its operation. It is desirable not to take data for sending from a file, but directly by a command. What exactly does a command look like in Bash that sends any data to the USB0 COM port?

Answer 1

sudo echo "blablabla" > /dev/ttyUSB0

Answer 2

look towards minicom, something like this https://stackoverflow.com/questions/24610085/minic...

Answer 3

Perhaps the article Arduino Host Client in C (Linux) will not be useless .

Answer 4

I use Python and don't worry:
import serial
arduino = serial.Serial('/dev/ttyUSB1', 115200, timeout=.1)
arduino.writelines("Hello")
print arduino.readline()