I'm starting fiddling with a Due but I can't seem to be able to communicate over USB with it. Here is my code:

int bauds = 9600;

void setup() {

void loop() {
    if (SerialUSB.available()) 

void serialUSBEvent() {
    String str = SerialUSB.readString();

As you can see, I try with the bare minimum but my output consoles (2 COM port for the 2 usb connections, just in case I messed up which is which) stay blanks, whatever I send them...

1 Answer 1


Have you tried resetting the board after sending the program? Or after having opened the terminal?

A few days ago I didn't have any results using SerialUSB, and today I have. The program has been sent trough the programming port, and SerialUSB is with native port. Uploading my program trough native port, it didn't worked until I reset!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.