The Arduino Uno is the old standby of the Arduino world, with the Arduino Due picking up where the Mega left off. The Arduino Tre is a pretty cool piece of kit combining a Linux system with the Ard… ...

Arduino Due has not yet implemented buffered serial transmit, so Serial.print(“anything_more_than_2_characters”) will block until the last 2 bytes are in the UART shift register and 1-byte buffer.