I'm trying to make my Arduino's LED blink for the first time, but when I try to upload the code I get the following error in the Serial Monitor:
Error opening serial port '/dev/ttyACM0'.
Try consulting the documentation at http://playground.arduino.cc/Linux/All#Permission
BTW, I have
serial.debug_rate=9600, so I don't think that's the problem. Can anyone help me with this please?