DFRobot Mega 2560 V3.0 (Arduino Mega 2560 R3 Compatible) DFRduino Mega 2560 V3.0 is now fully compatible with Arduino Mega 2560 R3 The Mega is compatible with most shields designed for the Arduino Duemilanove, Diecimila or Uno The Arduino Mega is a microcontroller board based on the ATmega2560 One cool thing about our DFRduino microcontrollers is that the hearders with different colors are used to differentiate I/O ports in an relatively easy way: Red indicates Power Section; Blue indicates Analog I/O; Green indicates Digital I/O This kind of correspondence match exactly the same with our sensors, making it even cooler and more user-friendly