Arduino Mega 2560 (Rev3)

5 2013-04-03 althaus 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. The Mega 2560 is an update to the Arduino Mega, which it replaces. The Mega2560 differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the ATmega16U2 programmed as a USB-to-serial converter. Revision 3 of the board has the following new features: 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Arduino Due that operate with 3.3V. The second one is a not connected pin, that is reserved for future purposes. Stronger RESET circuit. Atmega 16U2 replace the 8U2. Arduino Mega 2560 (Rev3) http://arduino.cc/en/Main/ArduinoBoardMega2560 Arduino Mega 2560 ATmega2560 microcontrollerboard REV 3 microcontroller board (arduino) Arduino MEGA 2560 (Rev3) A8

A10

A11

A12

A13

A14

A15

D21/SCL

D20/SDA

D19/RX1

D18/TX1

D17 PWM/RX2

D16 PWM/TX2

D15/RX3

D14/TX3

SCL

SDA

AREF

GND

D13 PWM

D12 PWM

D11 PWM

D10 PWM

D9 PWM

D8 PWM

IOREF

RESET

3V3

GND

VIN

D0 RX0

D1 TX0

D2 PWM

D3 PWM

D4 PWM

D5 PWM

D6 PWM

D7 PWM

D22

D23

D24

D25

D26

D27

D28

D29

D30

D31

D32

D33

D34

D35

D36

D37

D38

D39

D40

D41

D42

D43

D44

D45

D46

D47

D48

D49

D50

D51

D52

D53

GND