The Arduino Mega 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 an AC-DC adapter or battery to get started. The Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila.

• Microcontroller: ATmega2560
• Input Voltage: 7-12V
• Digital I/O Pins: 54 (14 PWM outputs)
• Analog Input Pins: 16
• Flash Memory: 256k
• Clock Speed: 16Mhz