[Free][Windows only] UE4Duino 2 - Arduino (COM port) communication

@gaofei7439 That’s weird. I did the same setup as you and this is what I got:
e5da7ad445ba14c54a50c003392704316a2f31fb.jpeg

Are you sure the Arduino code was uploaded to the Arduino board?
Or maybe there’s something else in your Blueprint consumig the characters by accident and ReadLine just works because it finds anything there, like the "
".