The Mega 2560 is a microcontroller board in line with the ATmega2560
It has fifty four digital enter/output pins (of which 14 can also be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a sixteen MHz crystal oscillator, a USB connection, a vigour jack, an ICSP header, and a reset button
It consists of every thing necessary to aid the microcontroller; simply join it to a pc with a USB cable or vigour it with an AC-to-DC adapter or battery to get all started
The Mega is suitable with most shields designed for the Arduino Duemilanove or Diecimila.
The Mega 2560 is an replace to the Arduino Mega, which it replaces