The Arduino Mega 2560 is a microcontroller board based on the ATmega2560 .It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila.
The Mega 2560 is an update to the Arduino Mega, which it replaces.
Input Voltage (recommended)
Input Voltage (limits)
Digital I/O Pins
54 (of which 14 provide PWM output)
Analog Input Pins
DC Current per I/O Pin
DC Current for 3.3V Pin
256 KB of which 8 KB used by bootloader
1 x Arduino Mega AVR ATmega2560 USB board
1x USB cable