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. The Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila.
- More Memory and RAM
- Input voltage – 7-12V
- 54 Digital I/O Pins (14 PWM outputs)
- 16 Analog Inputs
- 16Mhz Clock Speed