The Arduino Mega 2560 is a microcontroller board based on the ATmega2560 (datasheet). 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.There are quite a few differences between the Rev2 and the Rev3 Arduino boards.1.) The pinout of the Arduino Rev3 boards has been changed by adding SDA and SCL pins near the AREF pin and two more pins (IOREF and NC) near to the Reset pin.2.) The ATmega8U2 has now been replaced with the ATmega16U2 which is also an 8-bit microcontroller with USB 2.0 Full-Speed Support.3.) Stronger RESET Circuit.
It also comes with its own beautiful box like the Arduino Uno with a thank you note from the Arduino Team as well as a set of stickers for showcasing on your own DIY project.
- Additional Information
Processor ATmega2560 Architecture 8-bit Clock Speed 16 MHz Digital Pins 54 Analog Pins 16 PWM Pins 15 Hardware UART 4 Programming Interface USB Flash Memory 256K Operating Voltage 5V Power Output No Antenna No Range (Indoor/Urban) No Range (Outdoor/RF Line of Sight) No Channel Capacity No Frequency No Transmit Current @ 3.3V No