lasbainas:
But there are still two things that I do not understand:
- Why does the serial monitor on my PC read the message I sent from Arduino
- Why is this message split in blocks of four characters, and if this could be a problem for my sensor to accept it
I don't know.
I have no experience of sending messages from an Arduino to a PC through an RS232 to USB converter.
I repeat what I said earlier - RS232 voltages may damage your Arduino.
...R