Hello
I have 2 Arduino Mega, which does not behave as I think there should be.
Serial not working.
When I test this code:
Serial.begin(9600);
Serial1.begin(9600);
Serial2.begin(9600);
Serial3.begin(9600);
Serial.println("Hello Computer");
Serial1.println("Hello Serial 1");
Serial2.println("Hello Serial 2");
Serial3.println("Hello Serial 3");
Nothing comes out of Serial Monitor, nor on TX (pin 1)
There are data on TX3 (pin 14) and TX2 (pin 16).
On the TX1 (pin 18) demonstrates both the text of Serial1 and Serial.
("Hello Computer Hello Serial 1")
One (perhaps both 2) cards have been loaded new boot loader, via a Arduino Uno board (with ArduinoSPI)
/Jakob