This is the new MEGA2560 R3. In addition to all the features of the previous board, the MEGA now uses an ATMega16U2 instead of the ATMega8U2 chip. This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc.
The MEGA2560 R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board. The other is a not connected and is reserved for future purposes. The MEGA2560 R3 works with all existing shields but can adapt to new shields which use these additional pins.
|*Input Voltage (recommended)||7-12V|
|*Input Voltage (limits)||6-20V|
|*Digital I/O Pins||54 (of which 15 provide PWM output)|
|*Analog Input Pins||16|
|*DC Current per I/O Pin||40 mA|
|*DC Current for 3.3V Pin||50 mA|
|*Flash Memory||256 KB of which 8 KB used by bootloader|
|*Clock Speed||16 MHz|
- 1x SainSmart MEGA2560 R3 Improved 2013 Version AMEGA2560 ATMEGA16U2 board
- 1x USB cable